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Posted to commits@skywalking.apache.org by wu...@apache.org on 2018/07/31 15:53:00 UTC

[incubator-skywalking-oal-tool] branch master updated: Init codes of OAL tool

This is an automated email from the ASF dual-hosted git repository.

wusheng pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-skywalking-oal-tool.git


The following commit(s) were added to refs/heads/master by this push:
     new e9446fc  Init codes of OAL tool
e9446fc is described below

commit e9446fcb5b346d8a060264396169b27ebb5a8ef7
Author: Wu Sheng <wu...@foxmail.com>
AuthorDate: Tue Jul 31 23:52:54 2018 +0800

    Init codes of OAL tool
---
 DISCLAIMER                                         |   5 +
 HEADER                                             |  14 +
 LICENSE                                            | 412 +++++++++++----------
 NOTICE                                             |  11 +
 codeStyle.xml                                      | 146 ++++++++
 oal-syntax/pom.xml                                 |  58 +++
 oal-syntax/src/main/antlr4/Expr.g4                 |   9 +
 oal-syntax/target/.plxarc                          |   1 +
 oal-syntax/target/classes/ExprBaseListener.class   | Bin 0 -> 1649 bytes
 oal-syntax/target/classes/ExprLexer.class          | Bin 0 -> 3331 bytes
 oal-syntax/target/classes/ExprListener.class       | Bin 0 -> 562 bytes
 .../target/classes/ExprParser$ExprContext.class    | Bin 0 -> 1622 bytes
 .../target/classes/ExprParser$ProgContext.class    | Bin 0 -> 1865 bytes
 oal-syntax/target/classes/ExprParser.class         | Bin 0 -> 7477 bytes
 oal-syntax/target/classes/META-INF/DEPENDENCIES    |  33 ++
 oal-syntax/target/classes/META-INF/LICENSE         | 202 ++++++++++
 oal-syntax/target/classes/META-INF/NOTICE          |   8 +
 .../target/generated-sources/antlr4/Expr.tokens    |  14 +
 .../generated-sources/antlr4/ExprBaseListener.java |  64 ++++
 .../target/generated-sources/antlr4/ExprLexer.java |  77 ++++
 .../generated-sources/antlr4/ExprLexer.tokens      |  14 +
 .../generated-sources/antlr4/ExprListener.java     |  31 ++
 .../generated-sources/antlr4/ExprParser.java       | 258 +++++++++++++
 .../META-INF/DEPENDENCIES                          |  33 ++
 .../META-INF/LICENSE                               | 202 ++++++++++
 .../maven-shared-archive-resources/META-INF/NOTICE |   8 +
 .../compile/default-compile/createdFiles.lst       |   6 +
 .../compile/default-compile/inputFiles.lst         |   4 +
 pom.xml                                            | 190 ++++++++++
 target/.plxarc                                     |   1 +
 .../META-INF/DEPENDENCIES                          |  11 +
 .../META-INF/LICENSE                               | 202 ++++++++++
 .../maven-shared-archive-resources/META-INF/NOTICE |   8 +
 33 files changed, 1821 insertions(+), 201 deletions(-)

diff --git a/DISCLAIMER b/DISCLAIMER
new file mode 100644
index 0000000..ce7f273
--- /dev/null
+++ b/DISCLAIMER
@@ -0,0 +1,5 @@
+Apache SkyWalking (incubating) is an effort undergoing incubation at The Apache Software Foundation (ASF), sponsored by the Apache Incubator PMC.
+Incubation is required of all newly accepted projects until a further review indicates 
+that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects. 
+While incubation status is not necessarily a reflection of the completeness or stability of the code, 
+it does indicate that the project has yet to be fully endorsed by the ASF.
diff --git a/HEADER b/HEADER
new file mode 100644
index 0000000..1745cfe
--- /dev/null
+++ b/HEADER
@@ -0,0 +1,14 @@
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements.  See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to You under the Apache License, Version 2.0
+(the "License"); you may not use this file except in compliance with
+the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/LICENSE b/LICENSE
index 5e0fd33..8ae4ae5 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,201 +1,211 @@
-Apache License
-Version 2.0, January 2004
-http://www.apache.org/licenses/
-
-TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-1. Definitions.
-
-"License" shall mean the terms and conditions for use, reproduction,
-and distribution as defined by Sections 1 through 9 of this document.
-
-"Licensor" shall mean the copyright owner or entity authorized by
-the copyright owner that is granting the License.
-
-"Legal Entity" shall mean the union of the acting entity and all
-other entities that control, are controlled by, or are under common
-control with that entity. For the purposes of this definition,
-"control" means (i) the power, direct or indirect, to cause the
-direction or management of such entity, whether by contract or
-otherwise, or (ii) ownership of fifty percent (50%) or more of the
-outstanding shares, or (iii) beneficial ownership of such entity.
-
-"You" (or "Your") shall mean an individual or Legal Entity
-exercising permissions granted by this License.
-
-"Source" form shall mean the preferred form for making modifications,
-including but not limited to software source code, documentation
-source, and configuration files.
-
-"Object" form shall mean any form resulting from mechanical
-transformation or translation of a Source form, including but
-not limited to compiled object code, generated documentation,
-and conversions to other media types.
-
-"Work" shall mean the work of authorship, whether in Source or
-Object form, made available under the License, as indicated by a
-copyright notice that is included in or attached to the work
-(an example is provided in the Appendix below).
-
-"Derivative Works" shall mean any work, whether in Source or Object
-form, that is based on (or derived from) the Work and for which the
-editorial revisions, annotations, elaborations, or other modifications
-represent, as a whole, an original work of authorship. For the purposes
-of this License, Derivative Works shall not include works that remain
-separable from, or merely link (or bind by name) to the interfaces of,
-the Work and Derivative Works thereof.
-
-"Contribution" shall mean any work of authorship, including
-the original version of the Work and any modifications or additions
-to that Work or Derivative Works thereof, that is intentionally
-submitted to Licensor for inclusion in the Work by the copyright owner
-or by an individual or Legal Entity authorized to submit on behalf of
-the copyright owner. For the purposes of this definition, "submitted"
-means any form of electronic, verbal, or written communication sent
-to the Licensor or its representatives, including but not limited to
-communication on electronic mailing lists, source code control systems,
-and issue tracking systems that are managed by, or on behalf of, the
-Licensor for the purpose of discussing and improving the Work, but
-excluding communication that is conspicuously marked or otherwise
-designated in writing by the copyright owner as "Not a Contribution."
-
-"Contributor" shall mean Licensor and any individual or Legal Entity
-on behalf of whom a Contribution has been received by Licensor and
-subsequently incorporated within the Work.
-
-2. Grant of Copyright License. Subject to the terms and conditions of
-this License, each Contributor hereby grants to You a perpetual,
-worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-copyright license to reproduce, prepare Derivative Works of,
-publicly display, publicly perform, sublicense, and distribute the
-Work and such Derivative Works in Source or Object form.
-
-3. Grant of Patent License. Subject to the terms and conditions of
-this License, each Contributor hereby grants to You a perpetual,
-worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-(except as stated in this section) patent license to make, have made,
-use, offer to sell, sell, import, and otherwise transfer the Work,
-where such license applies only to those patent claims licensable
-by such Contributor that are necessarily infringed by their
-Contribution(s) alone or by combination of their Contribution(s)
-with the Work to which such Contribution(s) was submitted. If You
-institute patent litigation against any entity (including a
-cross-claim or counterclaim in a lawsuit) alleging that the Work
-or a Contribution incorporated within the Work constitutes direct
-or contributory patent infringement, then any patent licenses
-granted to You under this License for that Work shall terminate
-as of the date such litigation is filed.
-
-4. Redistribution. You may reproduce and distribute copies of the
-Work or Derivative Works thereof in any medium, with or without
-modifications, and in Source or Object form, provided that You
-meet the following conditions:
-
-(a) You must give any other recipients of the Work or
-Derivative Works a copy of this License; and
-
-(b) You must cause any modified files to carry prominent notices
-stating that You changed the files; and
-
-(c) You must retain, in the Source form of any Derivative Works
-that You distribute, all copyright, patent, trademark, and
-attribution notices from the Source form of the Work,
-excluding those notices that do not pertain to any part of
-the Derivative Works; and
-
-(d) If the Work includes a "NOTICE" text file as part of its
-distribution, then any Derivative Works that You distribute must
-include a readable copy of the attribution notices contained
-within such NOTICE file, excluding those notices that do not
-pertain to any part of the Derivative Works, in at least one
-of the following places: within a NOTICE text file distributed
-as part of the Derivative Works; within the Source form or
-documentation, if provided along with the Derivative Works; or,
-within a display generated by the Derivative Works, if and
-wherever such third-party notices normally appear. The contents
-of the NOTICE file are for informational purposes only and
-do not modify the License. You may add Your own attribution
-notices within Derivative Works that You distribute, alongside
-or as an addendum to the NOTICE text from the Work, provided
-that such additional attribution notices cannot be construed
-as modifying the License.
-
-You may add Your own copyright statement to Your modifications and
-may provide additional or different license terms and conditions
-for use, reproduction, or distribution of Your modifications, or
-for any such Derivative Works as a whole, provided Your use,
-reproduction, and distribution of the Work otherwise complies with
-the conditions stated in this License.
-
-5. Submission of Contributions. Unless You explicitly state otherwise,
-any Contribution intentionally submitted for inclusion in the Work
-by You to the Licensor shall be under the terms and conditions of
-this License, without any additional terms or conditions.
-Notwithstanding the above, nothing herein shall supersede or modify
-the terms of any separate license agreement you may have executed
-with Licensor regarding such Contributions.
-
-6. Trademarks. This License does not grant permission to use the trade
-names, trademarks, service marks, or product names of the Licensor,
-except as required for reasonable and customary use in describing the
-origin of the Work and reproducing the content of the NOTICE file.
-
-7. Disclaimer of Warranty. Unless required by applicable law or
-agreed to in writing, Licensor provides the Work (and each
-Contributor provides its Contributions) on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-implied, including, without limitation, any warranties or conditions
-of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-PARTICULAR PURPOSE. You are solely responsible for determining the
-appropriateness of using or redistributing the Work and assume any
-risks associated with Your exercise of permissions under this License.
-
-8. Limitation of Liability. In no event and under no legal theory,
-whether in tort (including negligence), contract, or otherwise,
-unless required by applicable law (such as deliberate and grossly
-negligent acts) or agreed to in writing, shall any Contributor be
-liable to You for damages, including any direct, indirect, special,
-incidental, or consequential damages of any character arising as a
-result of this License or out of the use or inability to use the
-Work (including but not limited to damages for loss of goodwill,
-work stoppage, computer failure or malfunction, or any and all
-other commercial damages or losses), even if such Contributor
-has been advised of the possibility of such damages.
-
-9. Accepting Warranty or Additional Liability. While redistributing
-the Work or Derivative Works thereof, You may choose to offer,
-and charge a fee for, acceptance of support, warranty, indemnity,
-or other liability obligations and/or rights consistent with this
-License. However, in accepting such obligations, You may act only
-on Your own behalf and on Your sole responsibility, not on behalf
-of any other Contributor, and only if You agree to indemnify,
-defend, and hold each Contributor harmless for any liability
-incurred by, or claims asserted against, such Contributor by reason
-of your accepting any such warranty or additional liability.
-
-END OF TERMS AND CONDITIONS
-
-APPENDIX: How to apply the Apache License to your work.
-
-To apply the Apache License to your work, attach the following
-boilerplate notice, with the fields enclosed by brackets "{}"
-replaced with your own identifying information. (Don't include
-the brackets!)  The text should be enclosed in the appropriate
-comment syntax for the file format. We also recommend that a
-file or class name and description of purpose be included on the
-same "printed page" as the copyright notice for easier
-identification within third-party archives.
-
-Copyright {yyyy} {name of copyright owner}
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright {yyyy} {name of copyright owner}
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+   =======================================================================
+   Apache SkyWalking Subcomponents:
+
+   The Apache SkyWalking project contains subcomponents with separate copyright
+   notices and license terms. Your use of the source code for the these
+   subcomponents is subject to the terms and conditions of the following
+   licenses.
+
+   iconfont(from antd): https://github.com/ant-design/antd-init/tree/master/examples/local-iconfont   MIT
diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..a442344
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,11 @@
+Apache SkyWalking
+Copyright 2017-2018 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
+
+This product bundles icons/fonts in skywalking-ui/public/font/iconfont folder
+from the ant-design project,
+https://github.com/ant-design/antd-init/tree/master/examples/local-iconfont
+Licensed under the MIT license, confirmed by ant-design team member.
+https://github.com/ant-design/ant-design/issues/10243
\ No newline at end of file
diff --git a/codeStyle.xml b/codeStyle.xml
new file mode 100644
index 0000000..e372943
--- /dev/null
+++ b/codeStyle.xml
@@ -0,0 +1,146 @@
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one or more
+  ~ contributor license agreements.  See the NOTICE file distributed with
+  ~ this work for additional information regarding copyright ownership.
+  ~ The ASF licenses this file to You under the Apache License, Version 2.0
+  ~ (the "License"); you may not use this file except in compliance with
+  ~ the License.  You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  ~
+  -->
+
+<code_scheme name="sky-walking">
+    <option name="USE_SAME_INDENTS" value="true"/>
+    <option name="IGNORE_SAME_INDENTS_FOR_LANGUAGES" value="true"/>
+    <option name="OTHER_INDENT_OPTIONS">
+        <value>
+            <option name="INDENT_SIZE" value="4"/>
+            <option name="CONTINUATION_INDENT_SIZE" value="4"/>
+            <option name="TAB_SIZE" value="4"/>
+            <option name="USE_TAB_CHARACTER" value="false"/>
+            <option name="SMART_TABS" value="false"/>
+            <option name="LABEL_INDENT_SIZE" value="0"/>
+            <option name="LABEL_INDENT_ABSOLUTE" value="false"/>
+            <option name="USE_RELATIVE_INDENTS" value="false"/>
+        </value>
+    </option>
+    <option name="PREFER_LONGER_NAMES" value="false"/>
+    <option name="CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND" value="1000"/>
+    <option name="NAMES_COUNT_TO_USE_IMPORT_ON_DEMAND" value="1000"/>
+    <option name="PACKAGES_TO_USE_IMPORT_ON_DEMAND">
+        <value/>
+    </option>
+    <option name="IMPORT_LAYOUT_TABLE">
+        <value>
+            <package name="" withSubpackages="true" static="false"/>
+            <emptyLine/>
+            <package name="" withSubpackages="true" static="true"/>
+        </value>
+    </option>
+    <option name="JD_ALIGN_PARAM_COMMENTS" value="false"/>
+    <option name="JD_ALIGN_EXCEPTION_COMMENTS" value="false"/>
+    <option name="JD_P_AT_EMPTY_LINES" value="false"/>
+    <option name="JD_KEEP_INVALID_TAGS" value="false"/>
+    <option name="JD_DO_NOT_WRAP_ONE_LINE_COMMENTS" value="true"/>
+    <option name="KEEP_CONTROL_STATEMENT_IN_ONE_LINE" value="false"/>
+    <option name="KEEP_BLANK_LINES_IN_DECLARATIONS" value="1"/>
+    <option name="KEEP_BLANK_LINES_IN_CODE" value="1"/>
+    <option name="KEEP_BLANK_LINES_BEFORE_RBRACE" value="1"/>
+    <option name="WHILE_ON_NEW_LINE" value="true"/>
+    <option name="ALIGN_MULTILINE_PARAMETERS" value="false"/>
+    <option name="ALIGN_MULTILINE_FOR" value="false"/>
+    <option name="SPACE_AFTER_TYPE_CAST" value="false"/>
+    <option name="SPACE_BEFORE_ARRAY_INITIALIZER_LBRACE" value="true"/>
+    <option name="METHOD_PARAMETERS_WRAP" value="1"/>
+    <option name="ARRAY_INITIALIZER_LBRACE_ON_NEXT_LINE" value="true"/>
+    <option name="LABELED_STATEMENT_WRAP" value="1"/>
+    <option name="WRAP_COMMENTS" value="true"/>
+    <option name="METHOD_ANNOTATION_WRAP" value="1"/>
+    <option name="CLASS_ANNOTATION_WRAP" value="1"/>
+    <option name="FIELD_ANNOTATION_WRAP" value="1"/>
+    <JavaCodeStyleSettings>
+        <option name="CLASS_NAMES_IN_JAVADOC" value="3"/>
+    </JavaCodeStyleSettings>
+    <XML>
+        <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true"/>
+    </XML>
+    <ADDITIONAL_INDENT_OPTIONS fileType="haml">
+        <option name="INDENT_SIZE" value="2"/>
+    </ADDITIONAL_INDENT_OPTIONS>
+    <codeStyleSettings language="Groovy">
+        <option name="KEEP_CONTROL_STATEMENT_IN_ONE_LINE" value="false"/>
+        <option name="KEEP_BLANK_LINES_IN_DECLARATIONS" value="1"/>
+        <option name="KEEP_BLANK_LINES_IN_CODE" value="1"/>
+        <option name="KEEP_BLANK_LINES_BEFORE_RBRACE" value="1"/>
+        <option name="ALIGN_MULTILINE_PARAMETERS" value="false"/>
+        <option name="ALIGN_MULTILINE_FOR" value="false"/>
+        <option name="SPACE_AFTER_TYPE_CAST" value="false"/>
+        <option name="METHOD_PARAMETERS_WRAP" value="1"/>
+        <option name="METHOD_ANNOTATION_WRAP" value="1"/>
+        <option name="CLASS_ANNOTATION_WRAP" value="1"/>
+        <option name="FIELD_ANNOTATION_WRAP" value="1"/>
+        <option name="PARENT_SETTINGS_INSTALLED" value="true"/>
+        <indentOptions>
+            <option name="CONTINUATION_INDENT_SIZE" value="4"/>
+        </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="HOCON">
+        <option name="KEEP_BLANK_LINES_BEFORE_RBRACE" value="1"/>
+        <option name="PARENT_SETTINGS_INSTALLED" value="true"/>
+    </codeStyleSettings>
+    <codeStyleSettings language="JAVA">
+        <option name="KEEP_CONTROL_STATEMENT_IN_ONE_LINE" value="false"/>
+        <option name="KEEP_BLANK_LINES_IN_DECLARATIONS" value="1"/>
+        <option name="KEEP_BLANK_LINES_IN_CODE" value="1"/>
+        <option name="KEEP_BLANK_LINES_BEFORE_RBRACE" value="1"/>
+        <option name="WHILE_ON_NEW_LINE" value="true"/>
+        <option name="ALIGN_MULTILINE_PARAMETERS" value="false"/>
+        <option name="ALIGN_MULTILINE_FOR" value="false"/>
+        <option name="SPACE_AFTER_TYPE_CAST" value="false"/>
+        <option name="SPACE_BEFORE_ARRAY_INITIALIZER_LBRACE" value="true"/>
+        <option name="METHOD_PARAMETERS_WRAP" value="1"/>
+        <option name="ARRAY_INITIALIZER_LBRACE_ON_NEXT_LINE" value="true"/>
+        <option name="LABELED_STATEMENT_WRAP" value="1"/>
+        <option name="METHOD_ANNOTATION_WRAP" value="1"/>
+        <option name="CLASS_ANNOTATION_WRAP" value="1"/>
+        <option name="FIELD_ANNOTATION_WRAP" value="1"/>
+        <option name="PARENT_SETTINGS_INSTALLED" value="true"/>
+        <indentOptions>
+            <option name="CONTINUATION_INDENT_SIZE" value="4"/>
+        </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="JSON">
+        <option name="KEEP_BLANK_LINES_IN_CODE" value="1"/>
+        <option name="PARENT_SETTINGS_INSTALLED" value="true"/>
+    </codeStyleSettings>
+    <codeStyleSettings language="Scala">
+        <option name="KEEP_BLANK_LINES_IN_DECLARATIONS" value="1"/>
+        <option name="KEEP_BLANK_LINES_IN_CODE" value="1"/>
+        <option name="KEEP_BLANK_LINES_BEFORE_RBRACE" value="1"/>
+        <option name="WHILE_ON_NEW_LINE" value="true"/>
+        <option name="ALIGN_MULTILINE_PARAMETERS" value="false"/>
+        <option name="ALIGN_MULTILINE_FOR" value="false"/>
+        <option name="METHOD_PARAMETERS_WRAP" value="1"/>
+        <option name="METHOD_ANNOTATION_WRAP" value="1"/>
+        <option name="CLASS_ANNOTATION_WRAP" value="1"/>
+        <option name="FIELD_ANNOTATION_WRAP" value="1"/>
+        <option name="PARENT_SETTINGS_INSTALLED" value="true"/>
+        <indentOptions>
+            <option name="INDENT_SIZE" value="4"/>
+            <option name="CONTINUATION_INDENT_SIZE" value="4"/>
+            <option name="TAB_SIZE" value="4"/>
+        </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="XML">
+        <indentOptions>
+            <option name="CONTINUATION_INDENT_SIZE" value="4"/>
+        </indentOptions>
+    </codeStyleSettings>
+</code_scheme>
diff --git a/oal-syntax/pom.xml b/oal-syntax/pom.xml
new file mode 100644
index 0000000..19a93a4
--- /dev/null
+++ b/oal-syntax/pom.xml
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one or more
+  ~ contributor license agreements.  See the NOTICE file distributed with
+  ~ this work for additional information regarding copyright ownership.
+  ~ The ASF licenses this file to You under the Apache License, Version 2.0
+  ~ (the "License"); you may not use this file except in compliance with
+  ~ the License.  You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  ~
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>oal-tool</artifactId>
+        <groupId>org.apache.skywalking</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>oal-syntax</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.antlr</groupId>
+            <artifactId>antlr4</artifactId>
+            <version>4.7.1</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.antlr</groupId>
+                <artifactId>antlr4-maven-plugin</artifactId>
+                <version>4.3</version>
+                <executions>
+                    <execution>
+                        <id>antlr</id>
+                        <goals>
+                            <goal>antlr4</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>
\ No newline at end of file
diff --git a/oal-syntax/src/main/antlr4/Expr.g4 b/oal-syntax/src/main/antlr4/Expr.g4
new file mode 100644
index 0000000..ea22cfc
--- /dev/null
+++ b/oal-syntax/src/main/antlr4/Expr.g4
@@ -0,0 +1,9 @@
+grammar Expr;
+prog:	(expr NEWLINE)* ;
+expr:	expr ('*'|'/') expr
+    |	expr ('+'|'-') expr
+    |	INT
+    |	'(' expr ')'
+    ;
+NEWLINE : [\r\n]+ ;
+INT     : [0-9]+ ;
\ No newline at end of file
diff --git a/oal-syntax/target/.plxarc b/oal-syntax/target/.plxarc
new file mode 100644
index 0000000..67ea6ee
--- /dev/null
+++ b/oal-syntax/target/.plxarc
@@ -0,0 +1 @@
+maven-shared-archive-resources
\ No newline at end of file
diff --git a/oal-syntax/target/classes/ExprBaseListener.class b/oal-syntax/target/classes/ExprBaseListener.class
new file mode 100644
index 0000000..732ec58
Binary files /dev/null and b/oal-syntax/target/classes/ExprBaseListener.class differ
diff --git a/oal-syntax/target/classes/ExprLexer.class b/oal-syntax/target/classes/ExprLexer.class
new file mode 100644
index 0000000..1626812
Binary files /dev/null and b/oal-syntax/target/classes/ExprLexer.class differ
diff --git a/oal-syntax/target/classes/ExprListener.class b/oal-syntax/target/classes/ExprListener.class
new file mode 100644
index 0000000..08fbdfc
Binary files /dev/null and b/oal-syntax/target/classes/ExprListener.class differ
diff --git a/oal-syntax/target/classes/ExprParser$ExprContext.class b/oal-syntax/target/classes/ExprParser$ExprContext.class
new file mode 100644
index 0000000..8619253
Binary files /dev/null and b/oal-syntax/target/classes/ExprParser$ExprContext.class differ
diff --git a/oal-syntax/target/classes/ExprParser$ProgContext.class b/oal-syntax/target/classes/ExprParser$ProgContext.class
new file mode 100644
index 0000000..015b59a
Binary files /dev/null and b/oal-syntax/target/classes/ExprParser$ProgContext.class differ
diff --git a/oal-syntax/target/classes/ExprParser.class b/oal-syntax/target/classes/ExprParser.class
new file mode 100644
index 0000000..e920973
Binary files /dev/null and b/oal-syntax/target/classes/ExprParser.class differ
diff --git a/oal-syntax/target/classes/META-INF/DEPENDENCIES b/oal-syntax/target/classes/META-INF/DEPENDENCIES
new file mode 100644
index 0000000..2764812
--- /dev/null
+++ b/oal-syntax/target/classes/META-INF/DEPENDENCIES
@@ -0,0 +1,33 @@
+// ------------------------------------------------------------------
+// Transitive dependencies of this project determined from the
+// maven pom organized by organization.
+// ------------------------------------------------------------------
+
+oal-syntax
+
+
+From: 'abego Software GmbH, Germany' (http://abego-software.de)
+  - abego TreeLayout Core (http://treelayout.sourceforge.net) org.abego.treelayout:org.abego.treelayout.core:bundle:1.0.3
+    License: BSD 3-Clause "New" or "Revised" License (BSD-3-Clause)  (http://www.abego-software.de/legal/apl-v10.html)
+
+From: 'an unknown organization'
+  - ICU4J (http://icu-project.org/) com.ibm.icu:icu4j:jar:58.2
+    License: Unicode/ICU License  (http://source.icu-project.org/repos/icu/trunk/icu4j/main/shared/licenses/LICENSE)
+  - StringTemplate 4 (http://www.stringtemplate.org) org.antlr:ST4:jar:4.0.8
+    License: BSD licence  (http://antlr.org/license.html)
+
+From: 'ANTLR' (http://www.antlr.org)
+  - ANTLR 3 Runtime (http://www.antlr.org) org.antlr:antlr-runtime:jar:3.5.2
+    License: BSD licence  (http://antlr.org/license.html)
+  - ANTLR 4 Tool (http://www.antlr.org) org.antlr:antlr4:jar:4.7.1
+    License: The BSD License  (http://www.antlr.org/license.html)
+  - ANTLR 4 Runtime (http://www.antlr.org/antlr4-runtime) org.antlr:antlr4-runtime:jar:4.7.1
+    License: The BSD License  (http://www.antlr.org/license.html)
+
+From: 'Oracle' (http://www.oracle.com)
+  - JSR 353 (JSON Processing) Default Provider (http://jsonp.java.net) org.glassfish:javax.json:bundle:1.0.4
+    License: Dual license consisting of the CDDL v1.1 and GPL v2  (https://glassfish.java.net/public/CDDL+GPL_1_1.html)
+
+
+
+
diff --git a/oal-syntax/target/classes/META-INF/LICENSE b/oal-syntax/target/classes/META-INF/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/oal-syntax/target/classes/META-INF/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/oal-syntax/target/classes/META-INF/NOTICE b/oal-syntax/target/classes/META-INF/NOTICE
new file mode 100644
index 0000000..82d5ff9
--- /dev/null
+++ b/oal-syntax/target/classes/META-INF/NOTICE
@@ -0,0 +1,8 @@
+
+oal-syntax
+Copyright 2018 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
+
+
diff --git a/oal-syntax/target/generated-sources/antlr4/Expr.tokens b/oal-syntax/target/generated-sources/antlr4/Expr.tokens
new file mode 100644
index 0000000..ea8dd4d
--- /dev/null
+++ b/oal-syntax/target/generated-sources/antlr4/Expr.tokens
@@ -0,0 +1,14 @@
+T__5=1
+NEWLINE=7
+T__4=2
+T__3=3
+T__2=4
+T__1=5
+T__0=6
+INT=8
+'-'=6
+'+'=5
+'*'=4
+')'=3
+'('=2
+'/'=1
diff --git a/oal-syntax/target/generated-sources/antlr4/ExprBaseListener.java b/oal-syntax/target/generated-sources/antlr4/ExprBaseListener.java
new file mode 100644
index 0000000..5087b09
--- /dev/null
+++ b/oal-syntax/target/generated-sources/antlr4/ExprBaseListener.java
@@ -0,0 +1,64 @@
+// Generated from Expr.g4 by ANTLR 4.3
+
+import org.antlr.v4.runtime.ParserRuleContext;
+import org.antlr.v4.runtime.misc.NotNull;
+import org.antlr.v4.runtime.tree.ErrorNode;
+import org.antlr.v4.runtime.tree.TerminalNode;
+
+/**
+ * This class provides an empty implementation of {@link ExprListener},
+ * which can be extended to create a listener which only needs to handle a subset
+ * of the available methods.
+ */
+public class ExprBaseListener implements ExprListener {
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterExpr(@NotNull ExprParser.ExprContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitExpr(@NotNull ExprParser.ExprContext ctx) { }
+
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterProg(@NotNull ExprParser.ProgContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitProg(@NotNull ExprParser.ProgContext ctx) { }
+
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterEveryRule(@NotNull ParserRuleContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitEveryRule(@NotNull ParserRuleContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void visitTerminal(@NotNull TerminalNode node) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void visitErrorNode(@NotNull ErrorNode node) { }
+}
\ No newline at end of file
diff --git a/oal-syntax/target/generated-sources/antlr4/ExprLexer.java b/oal-syntax/target/generated-sources/antlr4/ExprLexer.java
new file mode 100644
index 0000000..e44c300
--- /dev/null
+++ b/oal-syntax/target/generated-sources/antlr4/ExprLexer.java
@@ -0,0 +1,77 @@
+// Generated from Expr.g4 by ANTLR 4.3
+import org.antlr.v4.runtime.Lexer;
+import org.antlr.v4.runtime.CharStream;
+import org.antlr.v4.runtime.Token;
+import org.antlr.v4.runtime.TokenStream;
+import org.antlr.v4.runtime.*;
+import org.antlr.v4.runtime.atn.*;
+import org.antlr.v4.runtime.dfa.DFA;
+import org.antlr.v4.runtime.misc.*;
+
+@SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast"})
+public class ExprLexer extends Lexer {
+	static { RuntimeMetaData.checkVersion("4.3", RuntimeMetaData.VERSION); }
+
+	protected static final DFA[] _decisionToDFA;
+	protected static final PredictionContextCache _sharedContextCache =
+		new PredictionContextCache();
+	public static final int
+		T__5=1, T__4=2, T__3=3, T__2=4, T__1=5, T__0=6, NEWLINE=7, INT=8;
+	public static String[] modeNames = {
+		"DEFAULT_MODE"
+	};
+
+	public static final String[] tokenNames = {
+		"'\\u0000'", "'\\u0001'", "'\\u0002'", "'\\u0003'", "'\\u0004'", "'\\u0005'", 
+		"'\\u0006'", "'\\u0007'", "'\b'"
+	};
+	public static final String[] ruleNames = {
+		"T__5", "T__4", "T__3", "T__2", "T__1", "T__0", "NEWLINE", "INT"
+	};
+
+
+	public ExprLexer(CharStream input) {
+		super(input);
+		_interp = new LexerATNSimulator(this,_ATN,_decisionToDFA,_sharedContextCache);
+	}
+
+	@Override
+	public String getGrammarFileName() { return "Expr.g4"; }
+
+	@Override
+	public String[] getTokenNames() { return tokenNames; }
+
+	@Override
+	public String[] getRuleNames() { return ruleNames; }
+
+	@Override
+	public String getSerializedATN() { return _serializedATN; }
+
+	@Override
+	public String[] getModeNames() { return modeNames; }
+
+	@Override
+	public ATN getATN() { return _ATN; }
+
+	public static final String _serializedATN =
+		"\3\u0430\ud6d1\u8206\uad2d\u4417\uaef1\u8d80\uaadd\2\n)\b\1\4\2\t\2\4"+
+		"\3\t\3\4\4\t\4\4\5\t\5\4\6\t\6\4\7\t\7\4\b\t\b\4\t\t\t\3\2\3\2\3\3\3\3"+
+		"\3\4\3\4\3\5\3\5\3\6\3\6\3\7\3\7\3\b\6\b!\n\b\r\b\16\b\"\3\t\6\t&\n\t"+
+		"\r\t\16\t\'\2\2\n\3\3\5\4\7\5\t\6\13\7\r\b\17\t\21\n\3\2\4\4\2\f\f\17"+
+		"\17\3\2\62;*\2\3\3\2\2\2\2\5\3\2\2\2\2\7\3\2\2\2\2\t\3\2\2\2\2\13\3\2"+
+		"\2\2\2\r\3\2\2\2\2\17\3\2\2\2\2\21\3\2\2\2\3\23\3\2\2\2\5\25\3\2\2\2\7"+
+		"\27\3\2\2\2\t\31\3\2\2\2\13\33\3\2\2\2\r\35\3\2\2\2\17 \3\2\2\2\21%\3"+
+		"\2\2\2\23\24\7\61\2\2\24\4\3\2\2\2\25\26\7*\2\2\26\6\3\2\2\2\27\30\7+"+
+		"\2\2\30\b\3\2\2\2\31\32\7,\2\2\32\n\3\2\2\2\33\34\7-\2\2\34\f\3\2\2\2"+
+		"\35\36\7/\2\2\36\16\3\2\2\2\37!\t\2\2\2 \37\3\2\2\2!\"\3\2\2\2\" \3\2"+
+		"\2\2\"#\3\2\2\2#\20\3\2\2\2$&\t\3\2\2%$\3\2\2\2&\'\3\2\2\2\'%\3\2\2\2"+
+		"\'(\3\2\2\2(\22\3\2\2\2\5\2\"\'\2";
+	public static final ATN _ATN =
+		new ATNDeserializer().deserialize(_serializedATN.toCharArray());
+	static {
+		_decisionToDFA = new DFA[_ATN.getNumberOfDecisions()];
+		for (int i = 0; i < _ATN.getNumberOfDecisions(); i++) {
+			_decisionToDFA[i] = new DFA(_ATN.getDecisionState(i), i);
+		}
+	}
+}
\ No newline at end of file
diff --git a/oal-syntax/target/generated-sources/antlr4/ExprLexer.tokens b/oal-syntax/target/generated-sources/antlr4/ExprLexer.tokens
new file mode 100644
index 0000000..ea8dd4d
--- /dev/null
+++ b/oal-syntax/target/generated-sources/antlr4/ExprLexer.tokens
@@ -0,0 +1,14 @@
+T__5=1
+NEWLINE=7
+T__4=2
+T__3=3
+T__2=4
+T__1=5
+T__0=6
+INT=8
+'-'=6
+'+'=5
+'*'=4
+')'=3
+'('=2
+'/'=1
diff --git a/oal-syntax/target/generated-sources/antlr4/ExprListener.java b/oal-syntax/target/generated-sources/antlr4/ExprListener.java
new file mode 100644
index 0000000..30832ca
--- /dev/null
+++ b/oal-syntax/target/generated-sources/antlr4/ExprListener.java
@@ -0,0 +1,31 @@
+// Generated from Expr.g4 by ANTLR 4.3
+import org.antlr.v4.runtime.misc.NotNull;
+import org.antlr.v4.runtime.tree.ParseTreeListener;
+
+/**
+ * This interface defines a complete listener for a parse tree produced by
+ * {@link ExprParser}.
+ */
+public interface ExprListener extends ParseTreeListener {
+	/**
+	 * Enter a parse tree produced by {@link ExprParser#expr}.
+	 * @param ctx the parse tree
+	 */
+	void enterExpr(@NotNull ExprParser.ExprContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link ExprParser#expr}.
+	 * @param ctx the parse tree
+	 */
+	void exitExpr(@NotNull ExprParser.ExprContext ctx);
+
+	/**
+	 * Enter a parse tree produced by {@link ExprParser#prog}.
+	 * @param ctx the parse tree
+	 */
+	void enterProg(@NotNull ExprParser.ProgContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link ExprParser#prog}.
+	 * @param ctx the parse tree
+	 */
+	void exitProg(@NotNull ExprParser.ProgContext ctx);
+}
\ No newline at end of file
diff --git a/oal-syntax/target/generated-sources/antlr4/ExprParser.java b/oal-syntax/target/generated-sources/antlr4/ExprParser.java
new file mode 100644
index 0000000..0c4d5cb
--- /dev/null
+++ b/oal-syntax/target/generated-sources/antlr4/ExprParser.java
@@ -0,0 +1,258 @@
+// Generated from Expr.g4 by ANTLR 4.3
+import org.antlr.v4.runtime.atn.*;
+import org.antlr.v4.runtime.dfa.DFA;
+import org.antlr.v4.runtime.*;
+import org.antlr.v4.runtime.misc.*;
+import org.antlr.v4.runtime.tree.*;
+import java.util.List;
+import java.util.Iterator;
+import java.util.ArrayList;
+
+@SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast"})
+public class ExprParser extends Parser {
+	static { RuntimeMetaData.checkVersion("4.3", RuntimeMetaData.VERSION); }
+
+	protected static final DFA[] _decisionToDFA;
+	protected static final PredictionContextCache _sharedContextCache =
+		new PredictionContextCache();
+	public static final int
+		T__5=1, T__4=2, T__3=3, T__2=4, T__1=5, T__0=6, NEWLINE=7, INT=8;
+	public static final String[] tokenNames = {
+		"<INVALID>", "'/'", "'('", "')'", "'*'", "'+'", "'-'", "NEWLINE", "INT"
+	};
+	public static final int
+		RULE_prog = 0, RULE_expr = 1;
+	public static final String[] ruleNames = {
+		"prog", "expr"
+	};
+
+	@Override
+	public String getGrammarFileName() { return "Expr.g4"; }
+
+	@Override
+	public String[] getTokenNames() { return tokenNames; }
+
+	@Override
+	public String[] getRuleNames() { return ruleNames; }
+
+	@Override
+	public String getSerializedATN() { return _serializedATN; }
+
+	@Override
+	public ATN getATN() { return _ATN; }
+
+	public ExprParser(TokenStream input) {
+		super(input);
+		_interp = new ParserATNSimulator(this,_ATN,_decisionToDFA,_sharedContextCache);
+	}
+	public static class ProgContext extends ParserRuleContext {
+		public List<ExprContext> expr() {
+			return getRuleContexts(ExprContext.class);
+		}
+		public ExprContext expr(int i) {
+			return getRuleContext(ExprContext.class,i);
+		}
+		public List<TerminalNode> NEWLINE() { return getTokens(ExprParser.NEWLINE); }
+		public TerminalNode NEWLINE(int i) {
+			return getToken(ExprParser.NEWLINE, i);
+		}
+		public ProgContext(ParserRuleContext parent, int invokingState) {
+			super(parent, invokingState);
+		}
+		@Override public int getRuleIndex() { return RULE_prog; }
+		@Override
+		public void enterRule(ParseTreeListener listener) {
+			if ( listener instanceof ExprListener ) ((ExprListener)listener).enterProg(this);
+		}
+		@Override
+		public void exitRule(ParseTreeListener listener) {
+			if ( listener instanceof ExprListener ) ((ExprListener)listener).exitProg(this);
+		}
+	}
+
+	public final ProgContext prog() throws RecognitionException {
+		ProgContext _localctx = new ProgContext(_ctx, getState());
+		enterRule(_localctx, 0, RULE_prog);
+		int _la;
+		try {
+			enterOuterAlt(_localctx, 1);
+			{
+			setState(9);
+			_errHandler.sync(this);
+			_la = _input.LA(1);
+			while (_la==T__4 || _la==INT) {
+				{
+				{
+				setState(4); expr(0);
+				setState(5); match(NEWLINE);
+				}
+				}
+				setState(11);
+				_errHandler.sync(this);
+				_la = _input.LA(1);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			_errHandler.reportError(this, re);
+			_errHandler.recover(this, re);
+		}
+		finally {
+			exitRule();
+		}
+		return _localctx;
+	}
+
+	public static class ExprContext extends ParserRuleContext {
+		public List<ExprContext> expr() {
+			return getRuleContexts(ExprContext.class);
+		}
+		public ExprContext expr(int i) {
+			return getRuleContext(ExprContext.class,i);
+		}
+		public TerminalNode INT() { return getToken(ExprParser.INT, 0); }
+		public ExprContext(ParserRuleContext parent, int invokingState) {
+			super(parent, invokingState);
+		}
+		@Override public int getRuleIndex() { return RULE_expr; }
+		@Override
+		public void enterRule(ParseTreeListener listener) {
+			if ( listener instanceof ExprListener ) ((ExprListener)listener).enterExpr(this);
+		}
+		@Override
+		public void exitRule(ParseTreeListener listener) {
+			if ( listener instanceof ExprListener ) ((ExprListener)listener).exitExpr(this);
+		}
+	}
+
+	public final ExprContext expr() throws RecognitionException {
+		return expr(0);
+	}
+
+	private ExprContext expr(int _p) throws RecognitionException {
+		ParserRuleContext _parentctx = _ctx;
+		int _parentState = getState();
+		ExprContext _localctx = new ExprContext(_ctx, _parentState);
+		ExprContext _prevctx = _localctx;
+		int _startState = 2;
+		enterRecursionRule(_localctx, 2, RULE_expr, _p);
+		int _la;
+		try {
+			int _alt;
+			enterOuterAlt(_localctx, 1);
+			{
+			setState(18);
+			switch (_input.LA(1)) {
+			case INT:
+				{
+				setState(13); match(INT);
+				}
+				break;
+			case T__4:
+				{
+				setState(14); match(T__4);
+				setState(15); expr(0);
+				setState(16); match(T__3);
+				}
+				break;
+			default:
+				throw new NoViableAltException(this);
+			}
+			_ctx.stop = _input.LT(-1);
+			setState(28);
+			_errHandler.sync(this);
+			_alt = getInterpreter().adaptivePredict(_input,3,_ctx);
+			while ( _alt!=2 && _alt!=org.antlr.v4.runtime.atn.ATN.INVALID_ALT_NUMBER ) {
+				if ( _alt==1 ) {
+					if ( _parseListeners!=null ) triggerExitRuleEvent();
+					_prevctx = _localctx;
+					{
+					setState(26);
+					switch ( getInterpreter().adaptivePredict(_input,2,_ctx) ) {
+					case 1:
+						{
+						_localctx = new ExprContext(_parentctx, _parentState);
+						pushNewRecursionContext(_localctx, _startState, RULE_expr);
+						setState(20);
+						if (!(precpred(_ctx, 4))) throw new FailedPredicateException(this, "precpred(_ctx, 4)");
+						setState(21);
+						_la = _input.LA(1);
+						if ( !(_la==T__5 || _la==T__2) ) {
+						_errHandler.recoverInline(this);
+						}
+						consume();
+						setState(22); expr(5);
+						}
+						break;
+
+					case 2:
+						{
+						_localctx = new ExprContext(_parentctx, _parentState);
+						pushNewRecursionContext(_localctx, _startState, RULE_expr);
+						setState(23);
+						if (!(precpred(_ctx, 3))) throw new FailedPredicateException(this, "precpred(_ctx, 3)");
+						setState(24);
+						_la = _input.LA(1);
+						if ( !(_la==T__1 || _la==T__0) ) {
+						_errHandler.recoverInline(this);
+						}
+						consume();
+						setState(25); expr(4);
+						}
+						break;
+					}
+					} 
+				}
+				setState(30);
+				_errHandler.sync(this);
+				_alt = getInterpreter().adaptivePredict(_input,3,_ctx);
+			}
+			}
+		}
+		catch (RecognitionException re) {
+			_localctx.exception = re;
+			_errHandler.reportError(this, re);
+			_errHandler.recover(this, re);
+		}
+		finally {
+			unrollRecursionContexts(_parentctx);
+		}
+		return _localctx;
+	}
+
+	public boolean sempred(RuleContext _localctx, int ruleIndex, int predIndex) {
+		switch (ruleIndex) {
+		case 1: return expr_sempred((ExprContext)_localctx, predIndex);
+		}
+		return true;
+	}
+	private boolean expr_sempred(ExprContext _localctx, int predIndex) {
+		switch (predIndex) {
+		case 0: return precpred(_ctx, 4);
+
+		case 1: return precpred(_ctx, 3);
+		}
+		return true;
+	}
+
+	public static final String _serializedATN =
+		"\3\u0430\ud6d1\u8206\uad2d\u4417\uaef1\u8d80\uaadd\3\n\"\4\2\t\2\4\3\t"+
+		"\3\3\2\3\2\3\2\7\2\n\n\2\f\2\16\2\r\13\2\3\3\3\3\3\3\3\3\3\3\3\3\5\3\25"+
+		"\n\3\3\3\3\3\3\3\3\3\3\3\3\3\7\3\35\n\3\f\3\16\3 \13\3\3\3\2\3\4\4\2\4"+
+		"\2\4\4\2\3\3\6\6\3\2\7\b#\2\13\3\2\2\2\4\24\3\2\2\2\6\7\5\4\3\2\7\b\7"+
+		"\t\2\2\b\n\3\2\2\2\t\6\3\2\2\2\n\r\3\2\2\2\13\t\3\2\2\2\13\f\3\2\2\2\f"+
+		"\3\3\2\2\2\r\13\3\2\2\2\16\17\b\3\1\2\17\25\7\n\2\2\20\21\7\4\2\2\21\22"+
+		"\5\4\3\2\22\23\7\5\2\2\23\25\3\2\2\2\24\16\3\2\2\2\24\20\3\2\2\2\25\36"+
+		"\3\2\2\2\26\27\f\6\2\2\27\30\t\2\2\2\30\35\5\4\3\7\31\32\f\5\2\2\32\33"+
+		"\t\3\2\2\33\35\5\4\3\6\34\26\3\2\2\2\34\31\3\2\2\2\35 \3\2\2\2\36\34\3"+
+		"\2\2\2\36\37\3\2\2\2\37\5\3\2\2\2 \36\3\2\2\2\6\13\24\34\36";
+	public static final ATN _ATN =
+		new ATNDeserializer().deserialize(_serializedATN.toCharArray());
+	static {
+		_decisionToDFA = new DFA[_ATN.getNumberOfDecisions()];
+		for (int i = 0; i < _ATN.getNumberOfDecisions(); i++) {
+			_decisionToDFA[i] = new DFA(_ATN.getDecisionState(i), i);
+		}
+	}
+}
\ No newline at end of file
diff --git a/oal-syntax/target/maven-shared-archive-resources/META-INF/DEPENDENCIES b/oal-syntax/target/maven-shared-archive-resources/META-INF/DEPENDENCIES
new file mode 100644
index 0000000..2764812
--- /dev/null
+++ b/oal-syntax/target/maven-shared-archive-resources/META-INF/DEPENDENCIES
@@ -0,0 +1,33 @@
+// ------------------------------------------------------------------
+// Transitive dependencies of this project determined from the
+// maven pom organized by organization.
+// ------------------------------------------------------------------
+
+oal-syntax
+
+
+From: 'abego Software GmbH, Germany' (http://abego-software.de)
+  - abego TreeLayout Core (http://treelayout.sourceforge.net) org.abego.treelayout:org.abego.treelayout.core:bundle:1.0.3
+    License: BSD 3-Clause "New" or "Revised" License (BSD-3-Clause)  (http://www.abego-software.de/legal/apl-v10.html)
+
+From: 'an unknown organization'
+  - ICU4J (http://icu-project.org/) com.ibm.icu:icu4j:jar:58.2
+    License: Unicode/ICU License  (http://source.icu-project.org/repos/icu/trunk/icu4j/main/shared/licenses/LICENSE)
+  - StringTemplate 4 (http://www.stringtemplate.org) org.antlr:ST4:jar:4.0.8
+    License: BSD licence  (http://antlr.org/license.html)
+
+From: 'ANTLR' (http://www.antlr.org)
+  - ANTLR 3 Runtime (http://www.antlr.org) org.antlr:antlr-runtime:jar:3.5.2
+    License: BSD licence  (http://antlr.org/license.html)
+  - ANTLR 4 Tool (http://www.antlr.org) org.antlr:antlr4:jar:4.7.1
+    License: The BSD License  (http://www.antlr.org/license.html)
+  - ANTLR 4 Runtime (http://www.antlr.org/antlr4-runtime) org.antlr:antlr4-runtime:jar:4.7.1
+    License: The BSD License  (http://www.antlr.org/license.html)
+
+From: 'Oracle' (http://www.oracle.com)
+  - JSR 353 (JSON Processing) Default Provider (http://jsonp.java.net) org.glassfish:javax.json:bundle:1.0.4
+    License: Dual license consisting of the CDDL v1.1 and GPL v2  (https://glassfish.java.net/public/CDDL+GPL_1_1.html)
+
+
+
+
diff --git a/oal-syntax/target/maven-shared-archive-resources/META-INF/LICENSE b/oal-syntax/target/maven-shared-archive-resources/META-INF/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/oal-syntax/target/maven-shared-archive-resources/META-INF/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/oal-syntax/target/maven-shared-archive-resources/META-INF/NOTICE b/oal-syntax/target/maven-shared-archive-resources/META-INF/NOTICE
new file mode 100644
index 0000000..82d5ff9
--- /dev/null
+++ b/oal-syntax/target/maven-shared-archive-resources/META-INF/NOTICE
@@ -0,0 +1,8 @@
+
+oal-syntax
+Copyright 2018 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
+
+
diff --git a/oal-syntax/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst b/oal-syntax/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
new file mode 100644
index 0000000..004152f
--- /dev/null
+++ b/oal-syntax/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
@@ -0,0 +1,6 @@
+ExprParser.class
+ExprParser$ExprContext.class
+ExprBaseListener.class
+ExprLexer.class
+ExprListener.class
+ExprParser$ProgContext.class
diff --git a/oal-syntax/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst b/oal-syntax/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
new file mode 100644
index 0000000..422e840
--- /dev/null
+++ b/oal-syntax/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
@@ -0,0 +1,4 @@
+/Users/wusheng/Documents/GitHub/incubator-skywalking-oal-tool/oal-syntax/target/generated-sources/antlr4/ExprBaseListener.java
+/Users/wusheng/Documents/GitHub/incubator-skywalking-oal-tool/oal-syntax/target/generated-sources/antlr4/ExprListener.java
+/Users/wusheng/Documents/GitHub/incubator-skywalking-oal-tool/oal-syntax/target/generated-sources/antlr4/ExprLexer.java
+/Users/wusheng/Documents/GitHub/incubator-skywalking-oal-tool/oal-syntax/target/generated-sources/antlr4/ExprParser.java
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..14c47de
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,190 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.apache.skywalking</groupId>
+    <artifactId>oal-tool</artifactId>
+    <packaging>pom</packaging>
+    <version>1.0-SNAPSHOT</version>
+    <modules>
+        <module>oal-syntax</module>
+    </modules>
+
+    <parent>
+        <groupId>org.apache</groupId>
+        <artifactId>apache</artifactId>
+        <version>19</version>
+    </parent>
+
+    <developers>
+        <developer>
+            <name>Wu Sheng</name>
+            <email>wu.sheng@foxmail.com</email>
+            <url>https://github.com/wu-sheng</url>
+            <roles>
+                <role>Founder</role>
+                <role>PMC member</role>
+            </roles>
+        </developer>
+    </developers>
+    <name>oal-tool</name>
+    <url>https://github.com/apache/incubator-skywalking-oal-tool</url>
+
+    <scm>
+        <url>https://github.com/apache/incubator-skywalking-oal-tool</url>
+        <connection>scm:git:https://github.com/apache/incubator-skywalking-oal-tool.git</connection>
+        <developerConnection>scm:git:https://github.com/apache/incubator-skywalking-oal-tool.git</developerConnection>
+        <tag>HEAD</tag>
+    </scm>
+
+    <issueManagement>
+        <system>GitHub</system>
+        <url>https://github.com/apache/incubator-skywalking-oal-tool/issues</url>
+    </issueManagement>
+
+    <licenses>
+        <license>
+            <name>The Apache Software License, Version 2.0</name>
+            <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
+        </license>
+    </licenses>
+
+    <mailingLists>
+        <mailingList>
+            <name>SkyWalking Developer List</name>
+            <post>dev@skywalking.incubator.apache.org</post>
+            <subscribe>dev-subscribe@skywalking.incubator.apache.org</subscribe>
+            <unsubscribe>dev-unsubscribe@skywalking.incubator.apache.org</unsubscribe>
+        </mailingList>
+        <mailingList>
+            <name>SkyWalking Commits</name>
+            <post>commits@skywalking.incubator.apache.org</post>
+            <subscribe>commits-subscribe@skywalking.incubator.apache.org</subscribe>
+            <unsubscribe>commits-unsubscribe@skywalking.incubator.apache.org</unsubscribe>
+        </mailingList>
+    </mailingLists>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <compiler.version>1.8</compiler.version>
+        <powermock.version>1.6.4</powermock.version>
+        <checkstyle.version>6.18</checkstyle.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-all</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.powermock</groupId>
+            <artifactId>powermock-module-junit4</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.powermock</groupId>
+            <artifactId>powermock-api-mockito</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>junit</groupId>
+                <artifactId>junit</artifactId>
+                <version>4.12</version>
+                <scope>test</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.mockito</groupId>
+                <artifactId>mockito-all</artifactId>
+                <version>1.10.19</version>
+                <scope>test</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.powermock</groupId>
+                <artifactId>powermock-module-junit4</artifactId>
+                <version>${powermock.version}</version>
+                <scope>test</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.powermock</groupId>
+                <artifactId>powermock-api-mockito</artifactId>
+                <version>${powermock.version}</version>
+                <scope>test</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.rat</groupId>
+                <artifactId>apache-rat-plugin</artifactId>
+                <version>0.12</version>
+                <configuration>
+                    <excludes>
+                        <exclude>**/target/**</exclude>
+                        <exclude>**/DISCLAIMER</exclude>
+                        <exclude>**/codeStyle.xml</exclude>
+
+                        <!-- IDE files -->
+                        <exclude>**/*.iml</exclude>
+                        <exclude>**/.idea/**</exclude>
+                        <exclude>**/*.classpath</exclude>
+                        <exclude>**/.project</exclude>
+                        <exclude>**/.settings/**</exclude>
+                        <exclude>**/dependency-reduced-pom.xml</exclude>
+
+                        <!-- CI files -->
+                        <exclude>**/.travis.yml</exclude>
+
+                        <!-- GitHub files -->
+                        <exclude>**/.github/**</exclude>
+
+                        <!-- document files -->
+                        <exclude>**/*.md</exclude>
+                        <excldue>**/*.MD</excldue>
+                        <exclude>**/*.txt</exclude>
+                        <exclude>**/docs/**</exclude>
+                    </excludes>
+                </configuration>
+                <executions>
+                    <execution>
+                        <phase>verify</phase>
+                        <goals>
+                            <goal>check</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>${compiler.version}</source>
+                    <target>${compiler.version}</target>
+                    <encoding>${project.build.sourceEncoding}</encoding>
+                </configuration>
+                <version>3.6.1</version>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-resources-plugin</artifactId>
+                <version>2.4.3</version>
+                <configuration>
+                    <encoding>${project.build.sourceEncoding}</encoding>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>
\ No newline at end of file
diff --git a/target/.plxarc b/target/.plxarc
new file mode 100644
index 0000000..67ea6ee
--- /dev/null
+++ b/target/.plxarc
@@ -0,0 +1 @@
+maven-shared-archive-resources
\ No newline at end of file
diff --git a/target/maven-shared-archive-resources/META-INF/DEPENDENCIES b/target/maven-shared-archive-resources/META-INF/DEPENDENCIES
new file mode 100644
index 0000000..ed0b393
--- /dev/null
+++ b/target/maven-shared-archive-resources/META-INF/DEPENDENCIES
@@ -0,0 +1,11 @@
+// ------------------------------------------------------------------
+// Transitive dependencies of this project determined from the
+// maven pom organized by organization.
+// ------------------------------------------------------------------
+
+oal-tool
+
+
+
+
+
diff --git a/target/maven-shared-archive-resources/META-INF/LICENSE b/target/maven-shared-archive-resources/META-INF/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/target/maven-shared-archive-resources/META-INF/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/target/maven-shared-archive-resources/META-INF/NOTICE b/target/maven-shared-archive-resources/META-INF/NOTICE
new file mode 100644
index 0000000..f854993
--- /dev/null
+++ b/target/maven-shared-archive-resources/META-INF/NOTICE
@@ -0,0 +1,8 @@
+
+oal-tool
+Copyright 2018 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
+
+