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Posted to dev@xalan.apache.org by bu...@apache.org on 2003/11/21 15:59:58 UTC
DO NOT REPLY [Bug 24894] New: -
NullPointerException with document() in a global xsl:variable
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=24894
NullPointerException with document() in a global xsl:variable
Summary: NullPointerException with document() in a global
xsl:variable
Product: XalanJ2
Version: 2.5
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: Normal
Priority: Other
Component: org.apache.xpath
AssignedTo: xalan-dev@xml.apache.org
ReportedBy: ken.blackler@jrc.it
I am referring an external document using:
<xsl:variable name="externaldoc" select="document('external.xml')"/>
When I use this inside my transformation as $externaldoc I get a null pointer
exception. Moving the xsl:variable declaration from global to inside the
xsl:template did not help. Changing the critical occurance of "$externaldoc"
in the criticial xpath expression to a direct call to "document
('external.xml')" stops the error. Therefore I suspect it is the reuse of the
document element that is causing this problem. Interestingly I use this method
in many other places in the same application without this problem. Here I am
only counting elements in $externaldoc to obtain some statistics....
<checkEnvironmentExtension>
<EnvironmentCheck version="$Revision: 1.23 $">
<environment>
<item key="version.DOM.draftlevel">2.0fd</item>
<item key="java.class.path">.</item>
<item key="version.JAXP">1.1 or higher</item>
<item key="java.ext.dirs">C:\Program Files\Java\j2re1.4.2_02\lib\ext</item>
<foundJar desc="path" name="xalan.jar">C:\Program Files\Java\j2re1.4.2_02
\lib\endorsed\xalan.jar</foundJar>
<foundJar desc="apparent.version" name="xercesImpl.jar">xercesImpl.jar
WARNING.present-unknown-version</foundJar>
<foundJar desc="path" name="xercesImpl.jar">C:\Program Files\Java\j2re1.4.2_02
\lib\endorsed\xercesImpl.jar</foundJar>
<foundJar desc="apis.jar-apparent.version" name="xml">xml-apis.jar present-
unknown-version</foundJar>
<foundJar desc="apis.jar-path" name="xml">C:\Program Files\Java\j2re1.4.2_02
\lib\endorsed\xml-apis.jar</foundJar>
<item key="version.xerces2">Xerces-J 2.6.0</item>
<item key="version.xerces1">not-present</item>
<item key="version.xalan2_2">Xalan Java 2.5.2</item>
<item key="version.xalan1">not-present</item>
<item key="version.ant">not-present</item>
<item key="java.version">1.4.2_02</item>
<item key="version.DOM">2.0</item>
<item key="version.crimson">present-unknown-version</item>
<item key="sun.boot.class.path">C:\Program Files\Java\j2re1.4.2_02
\lib\endorsed\xalan.jar;C:\Program Files\Java\j2re1.4.2_02
\lib\endorsed\xercesImpl.jar;C:\Program Files\Java\j2re1.4.2_02
\lib\endorsed\xml-apis.jar;C:\Program Files\Java\j2re1.4.2_02
\lib\endorsed\xmlParserAPIs.jar;C:\Program Files\Java\j2re1.4.2_02
\lib\rt.jar;C:\Program Files\Java\j2re1.4.2_02\lib\i18n.jar;C:\Program
Files\Java\j2re1.4.2_02\lib\sunrsasign.jar;C:\Program Files\Java\j2re1.4.2_02
\lib\jsse.jar;C:\Program Files\Java\j2re1.4.2_02\lib\jce.jar;C:\Program
Files\Java\j2re1.4.2_02\lib\charsets.jar;C:\Program Files\Java\j2re1.4.2_02
\classes</item>
<item key="version.SAX">2.0</item>
<item key="version.xalan2x">Xalan Java 2.5.2</item>
</environment>
<status result="OK"/>
</EnvironmentCheck>
</checkEnvironmentExtension>
The full stack trace is:
javax.xml.transform.TransformerConfigurationException:
javax.xml.transform.TransformerException: java.lang.NullPointerException
at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates
(TransformerFactoryImpl.java:861)
at org.apache.xalan.xslt.Process.main(Process.java:760)
Caused by: javax.xml.transform.TransformerException:
java.lang.NullPointerException
at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates
(TransformerFactoryImpl.java:855)
... 1 more
Caused by: java.lang.NullPointerException
at org.apache.xpath.operations.Variable.getElemVariable
(Variable.java:312)
at org.apache.xpath.operations.Variable.getAnalysisBits
(Variable.java:362)
at org.apache.xpath.axes.FilterExprWalker.getAnalysisBits
(FilterExprWalker.java:305)
at org.apache.xpath.axes.WalkingIterator.getAnalysisBits
(WalkingIterator.java:129)
at org.apache.xpath.axes.WalkingIteratorSorted.fixupVariables
(WalkingIteratorSorted.java:235)
at org.apache.xpath.functions.FunctionOneArg.fixupVariables
(FunctionOneArg.java:156)
at org.apache.xpath.XPath.fixupVariables(XPath.java:111)
at org.apache.xalan.templates.ElemSort.compose(ElemSort.java:382)
at org.apache.xalan.templates.ElemForEach.compose(ElemForEach.java:157)
at org.apache.xalan.templates.ElemCallTemplate.compose
(ElemCallTemplate.java:150)
at org.apache.xalan.templates.ElemApplyTemplates.compose
(ElemApplyTemplates.java:164)
at org.apache.xalan.templates.StylesheetRoot.composeTemplates
(StylesheetRoot.java:358)
at org.apache.xalan.templates.StylesheetRoot.composeTemplates
(StylesheetRoot.java:363)
at org.apache.xalan.templates.StylesheetRoot.composeTemplates
(StylesheetRoot.java:363)
at org.apache.xalan.templates.StylesheetRoot.recompose
(StylesheetRoot.java:338)
at org.apache.xalan.processor.StylesheetHandler.endDocument
(StylesheetHandler.java:481)
at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown
Source)
at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown
Source)
at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch
(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument
(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates
(TransformerFactoryImpl.java:831)
... 1 more
---------
javax.xml.transform.TransformerException: java.lang.NullPointerException
at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates
(TransformerFactoryImpl.java:855)
at org.apache.xalan.xslt.Process.main(Process.java:760)
Caused by: java.lang.NullPointerException
at org.apache.xpath.operations.Variable.getElemVariable
(Variable.java:312)
at org.apache.xpath.operations.Variable.getAnalysisBits
(Variable.java:362)
at org.apache.xpath.axes.FilterExprWalker.getAnalysisBits
(FilterExprWalker.java:305)
at org.apache.xpath.axes.WalkingIterator.getAnalysisBits
(WalkingIterator.java:129)
at org.apache.xpath.axes.WalkingIteratorSorted.fixupVariables
(WalkingIteratorSorted.java:235)
at org.apache.xpath.functions.FunctionOneArg.fixupVariables
(FunctionOneArg.java:156)
at org.apache.xpath.XPath.fixupVariables(XPath.java:111)
at org.apache.xalan.templates.ElemSort.compose(ElemSort.java:382)
at org.apache.xalan.templates.ElemForEach.compose(ElemForEach.java:157)
at org.apache.xalan.templates.ElemCallTemplate.compose
(ElemCallTemplate.java:150)
at org.apache.xalan.templates.ElemApplyTemplates.compose
(ElemApplyTemplates.java:164)
at org.apache.xalan.templates.StylesheetRoot.composeTemplates
(StylesheetRoot.java:358)
at org.apache.xalan.templates.StylesheetRoot.composeTemplates
(StylesheetRoot.java:363)
at org.apache.xalan.templates.StylesheetRoot.composeTemplates
(StylesheetRoot.java:363)
at org.apache.xalan.templates.StylesheetRoot.recompose
(StylesheetRoot.java:338)
at org.apache.xalan.processor.StylesheetHandler.endDocument
(StylesheetHandler.java:481)
at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown
Source)
at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown
Source)
at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch
(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument
(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates
(TransformerFactoryImpl.java:831)
... 1 more
---------
java.lang.NullPointerException
at org.apache.xpath.operations.Variable.getElemVariable
(Variable.java:312)
at org.apache.xpath.operations.Variable.getAnalysisBits
(Variable.java:362)
at org.apache.xpath.axes.FilterExprWalker.getAnalysisBits
(FilterExprWalker.java:305)
at org.apache.xpath.axes.WalkingIterator.getAnalysisBits
(WalkingIterator.java:129)
at org.apache.xpath.axes.WalkingIteratorSorted.fixupVariables
(WalkingIteratorSorted.java:235)
at org.apache.xpath.functions.FunctionOneArg.fixupVariables
(FunctionOneArg.java:156)
at org.apache.xpath.XPath.fixupVariables(XPath.java:111)
at org.apache.xalan.templates.ElemSort.compose(ElemSort.java:382)
at org.apache.xalan.templates.ElemForEach.compose(ElemForEach.java:157)
at org.apache.xalan.templates.ElemCallTemplate.compose
(ElemCallTemplate.java:150)
at org.apache.xalan.templates.ElemApplyTemplates.compose
(ElemApplyTemplates.java:164)
at org.apache.xalan.templates.StylesheetRoot.composeTemplates
(StylesheetRoot.java:358)
at org.apache.xalan.templates.StylesheetRoot.composeTemplates
(StylesheetRoot.java:363)
at org.apache.xalan.templates.StylesheetRoot.composeTemplates
(StylesheetRoot.java:363)
at org.apache.xalan.templates.StylesheetRoot.recompose
(StylesheetRoot.java:338)
at org.apache.xalan.processor.StylesheetHandler.endDocument
(StylesheetHandler.java:481)
at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown
Source)
at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown
Source)
at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch
(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument
(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates
(TransformerFactoryImpl.java:831)
at org.apache.xalan.xslt.Process.main(Process.java:760)
---------
java.lang.NullPointerException
at org.apache.xpath.operations.Variable.getElemVariable
(Variable.java:312)
at org.apache.xpath.operations.Variable.getAnalysisBits
(Variable.java:362)
at org.apache.xpath.axes.FilterExprWalker.getAnalysisBits
(FilterExprWalker.java:305)
at org.apache.xpath.axes.WalkingIterator.getAnalysisBits
(WalkingIterator.java:129)
at org.apache.xpath.axes.WalkingIteratorSorted.fixupVariables
(WalkingIteratorSorted.java:235)
at org.apache.xpath.functions.FunctionOneArg.fixupVariables
(FunctionOneArg.java:156)
at org.apache.xpath.XPath.fixupVariables(XPath.java:111)
at org.apache.xalan.templates.ElemSort.compose(ElemSort.java:382)
at org.apache.xalan.templates.ElemForEach.compose(ElemForEach.java:157)
at org.apache.xalan.templates.ElemCallTemplate.compose
(ElemCallTemplate.java:150)
at org.apache.xalan.templates.ElemApplyTemplates.compose
(ElemApplyTemplates.java:164)
at org.apache.xalan.templates.StylesheetRoot.composeTemplates
(StylesheetRoot.java:358)
at org.apache.xalan.templates.StylesheetRoot.composeTemplates
(StylesheetRoot.java:363)
at org.apache.xalan.templates.StylesheetRoot.composeTemplates
(StylesheetRoot.java:363)
at org.apache.xalan.templates.StylesheetRoot.recompose
(StylesheetRoot.java:338)
at org.apache.xalan.processor.StylesheetHandler.endDocument
(StylesheetHandler.java:481)
at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown
Source)
at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown
Source)
at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch
(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument
(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates
(TransformerFactoryImpl.java:831)
at org.apache.xalan.xslt.Process.main(Process.java:760)