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Posted to commits@harmony.apache.org by "Alexei Fedotov (JIRA)" <ji...@apache.org> on 2006/12/07 19:11:23 UTC
[jira] Created: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
[drlvm] VM crashes instead of throwing AbstractMethodError
----------------------------------------------------------
Key: HARMONY-2528
URL: http://issues.apache.org/jira/browse/HARMONY-2528
Project: Harmony
Issue Type: Bug
Components: DRLVM
Reporter: Alexei Fedotov
The following test perfectly compiles with javac, and throws
java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
at Test1.main(Test1.java:7)
when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
import javax.management.monitor.*;
import javax.management.*;
public class Test1 {
public static void main(String[] args) throws Exception {
(new MonitorImpl()).getObservedObjects();
}
}
class MonitorImpl extends javax.management.monitor.Monitor {
@Override
public void start() {}
@Override
public void stop() {}
}
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[jira] Updated: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Alexei Fedotov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=all ]
Alexei Fedotov updated HARMONY-2528:
------------------------------------
Patch Info: [Patch Available]
All tests passed for ia32 platforms (including class library tests). The patch also contains several improvements according to the last section of http://wiki.apache.org/harmony/Code_Inspection%3a_compile%2ecpp
Please could you commit the patch?
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, AbstractMethodError_2.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Updated: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Alexei Fedotov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=all ]
Alexei Fedotov updated HARMONY-2528:
------------------------------------
Attachment: Test1.java
AbstractMethodError.patch
The test should be compiled with standard javac to get a class file with abstract method. I'm testing the patch now.
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Attachments: AbstractMethodError.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Resolved: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Gregory Shimansky (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=all ]
Gregory Shimansky resolved HARMONY-2528.
----------------------------------------
Resolution: Fixed
Attached test passes now.
Patch from HARMONY-2906 has been applied to fix this issue. Please check that it was applied as expected.
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Assigned To: Gregory Shimansky
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, AbstractMethodError_2.patch, H2528-AME.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Commented: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Gregory Shimansky (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=comments#action_12461272 ]
Gregory Shimansky commented on HARMONY-2528:
--------------------------------------------
I assume that the patch for *this* issue is actually the patch attached to HARMONY-2906, called abstract_method_error_3.patch.
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Assigned To: Gregory Shimansky
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, AbstractMethodError_2.patch, H2528-AME.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Commented: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Alexei Fedotov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=comments#action_12461094 ]
Alexei Fedotov commented on HARMONY-2528:
-----------------------------------------
HARMONY-2906 testing completed.
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Assigned To: Gregory Shimansky
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, AbstractMethodError_2.patch, H2528-AME.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Commented: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Alexei Fedotov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=comments#action_12461036 ]
Alexei Fedotov commented on HARMONY-2528:
-----------------------------------------
Gregory,
I will split my patch into two patches. One will target code inspection notes, and it will be orthogonal to Pavel's patch. I will file a new JIRA issue for that patch. The rest of my patch (the actual fix) will be the following code in compile_jit_a_method stub - only it will compete with Pavel's patch.
+ tmn_suspend_enable();
+ if (method->is_abstract()) {
+ compile_raise_exception("java/lang/AbstractMethodError", "Cannot compile", method);
+ tmn_suspend_disable();
+ return NULL;
+ }
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Assigned To: Gregory Shimansky
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, AbstractMethodError_2.patch, H2528-AME.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Updated: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Alexei Fedotov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=all ]
Alexei Fedotov updated HARMONY-2528:
------------------------------------
Attachment: AbstractMethodError_2.patch
A questionable assertion is removed from the patch and filed as a separate issue, see HARMONY-2532.
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, AbstractMethodError_2.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Commented: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Gregory Shimansky (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=comments#action_12460816 ]
Gregory Shimansky commented on HARMONY-2528:
--------------------------------------------
Both patches fail to apply to the current source tree. Also could we have some decision made about alternative approaches? I think you could at least give reasons to both ways and explain which one is better. Patch(es) have to be updated too.
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Assigned To: Gregory Shimansky
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, AbstractMethodError_2.patch, H2528-AME.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Closed: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Alexei Fedotov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-2528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexei Fedotov closed HARMONY-2528.
-----------------------------------
Gregory, thanks - the patch is applied as expected.
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: https://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Assigned To: Gregory Shimansky
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, AbstractMethodError_2.patch, H2528-AME.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Updated: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Alexei Fedotov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=all ]
Alexei Fedotov updated HARMONY-2528:
------------------------------------
Attachment: AbstractMethodError_1.patch
The patch: take two. An assertion was incorrect. Still testing.
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Updated: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Pavel Pervov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=all ]
Pavel Pervov updated HARMONY-2528:
----------------------------------
Attachment: H2528-AME.patch
Here is alternative patch which fixes reported issue.
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, AbstractMethodError_2.patch, H2528-AME.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Commented: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Gregory Shimansky (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=comments#action_12461282 ]
Gregory Shimansky commented on HARMONY-2528:
--------------------------------------------
Forgot to mention that the revision for this patch is 490881.
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Assigned To: Gregory Shimansky
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, AbstractMethodError_2.patch, H2528-AME.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Commented: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Pavel Pervov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=comments#action_12456911 ]
Pavel Pervov commented on HARMONY-2528:
---------------------------------------
Alexei, as per your request, I reviewed your patch. First of all it contains lots of unrelated changes. I would suggest filing separate JIRA against changes requested in http://wiki.apache.org/harmony/Code_Inspection%3a_compile%2ecpp.
Commenting your fix, I would suggest making these changes in vm/vmcore/src/class_support/Prepare.cpp. There should be 'if' inserted for abstract methods where compile_me_stubs are assigned into methods' code addresses. Respective stub for throwing AME is already available there. Actually, I'll attach alternative patch by myself.
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, AbstractMethodError_2.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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[jira] Assigned: (HARMONY-2528) [drlvm] VM crashes instead of
throwing AbstractMethodError
Posted by "Gregory Shimansky (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-2528?page=all ]
Gregory Shimansky reassigned HARMONY-2528:
------------------------------------------
Assignee: Gregory Shimansky
> [drlvm] VM crashes instead of throwing AbstractMethodError
> ----------------------------------------------------------
>
> Key: HARMONY-2528
> URL: http://issues.apache.org/jira/browse/HARMONY-2528
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Alexei Fedotov
> Assigned To: Gregory Shimansky
> Attachments: AbstractMethodError.patch, AbstractMethodError_1.patch, AbstractMethodError_2.patch, H2528-AME.patch, Test1.java
>
>
> The following test perfectly compiles with javac, and throws
> java.lang.AbstractMethodError: javax/management/monitor/Monitor.createMX4JMonitor()Lmx4j/monitor/MX4JMonitor;
> at javax.management.monitor.Monitor.getMX4JMonitor(Monitor.java:54)
> at javax.management.monitor.Monitor.getObservedObjects(Monitor.java:149)
> at Test1.main(Test1.java:7)
> when used with mx4j implementation. DRLVM + JIT crashes trying to compile abstract method.
> import javax.management.monitor.*;
> import javax.management.*;
> public class Test1 {
> public static void main(String[] args) throws Exception {
> (new MonitorImpl()).getObservedObjects();
> }
> }
> class MonitorImpl extends javax.management.monitor.Monitor {
> @Override
> public void start() {}
> @Override
> public void stop() {}
> }
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