[JBoss JIRA] (JASSIST-152) instrumentation fails when building stackmap for local var of array type : bad array type for AALOAD: null
1:35 p.m.
Yanic Inghelbrecht created JASSIST-152:
------------------------------------------
Summary: instrumentation fails when building stackmap for local var of array
type : bad array type for AALOAD: null
Key: JASSIST-152
URL: https://issues.jboss.org/browse/JASSIST-152
Project: Javassist
Issue Type: Bug
Affects Versions: 3.15.0-GA
Environment: Any
Reporter: Yanic Inghelbrecht
Assignee: Shigeru Chiba
When trying to instrument the attached org.hibernate.cfg.AbstractPropertyHolder (copied
from the hibernate 4.0.1 final distribution), instrumentation fails with the following
exception :
java.lang.RuntimeException: fatal error:
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:177)
at javassist.bytecode.stackmap.MapMaker.fillStackMap(MapMaker.java:410)
at javassist.bytecode.stackmap.MapMaker.toStackMapBody(MapMaker.java:393)
at javassist.bytecode.stackmap.MapMaker.toStackMap(MapMaker.java:323)
at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:98)
at javassist.bytecode.MethodInfo.rebuildStackMap(MethodInfo.java:417)
at javassist.bytecode.MethodInfo.rebuildStackMapIf6(MethodInfo.java:399)
at javassist.expr.ExprEditor.doit(ExprEditor.java:113)
at javassist.CtBehavior.instrument(CtBehavior.java:672)
at test_abstractpropertyholder.SimpleTranslator.modify(SimpleTranslator.java:25)
at test_abstractpropertyholder.SimpleTranslator.onLoad(SimpleTranslator.java:19)
at
test_abstractpropertyholder.JavassistInstrumenter.getInstrumentedClass(JavassistInstrumenter.java:21)
at test_abstractpropertyholder.Main.main(Main.java:32)transforming
org.hibernate.cfg.AbstractPropertyHolder
Caused by: javassist.bytecode.BadBytecode: bad array type for AALOAD: null
at javassist.bytecode.stackmap.TypeData$ArrayElement.getName(TypeData.java:422)
at javassist.bytecode.stackmap.TypeData$TypeName.getExpected(TypeData.java:292)
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:175)
... 12 more
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2:05 p.m.
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Yanic Inghelbrecht updated JASSIST-152:
---------------------------------------
Attachment: demonstration.zip
source code and AbstractPropertyHolder.class file to demonstrate the issue
instrumentation fails when building stackmap for local var of array
type : bad array type for AALOAD: null
----------------------------------------------------------------------------------------------------------
Key: JASSIST-152
URL: https://issues.jboss.org/browse/JASSIST-152
Project: Javassist
Issue Type: Bug
Affects Versions: 3.15.0-GA
Environment: Any
Reporter: Yanic Inghelbrecht
Assignee: Shigeru Chiba
Attachments: demonstration.zip
When trying to instrument the attached org.hibernate.cfg.AbstractPropertyHolder (copied
from the hibernate 4.0.1 final distribution), instrumentation fails with the following
exception :
java.lang.RuntimeException: fatal error:
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:177)
at javassist.bytecode.stackmap.MapMaker.fillStackMap(MapMaker.java:410)
at javassist.bytecode.stackmap.MapMaker.toStackMapBody(MapMaker.java:393)
at javassist.bytecode.stackmap.MapMaker.toStackMap(MapMaker.java:323)
at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:98)
at javassist.bytecode.MethodInfo.rebuildStackMap(MethodInfo.java:417)
at javassist.bytecode.MethodInfo.rebuildStackMapIf6(MethodInfo.java:399)
at javassist.expr.ExprEditor.doit(ExprEditor.java:113)
at javassist.CtBehavior.instrument(CtBehavior.java:672)
at test_abstractpropertyholder.SimpleTranslator.modify(SimpleTranslator.java:25)
at test_abstractpropertyholder.SimpleTranslator.onLoad(SimpleTranslator.java:19)
at
test_abstractpropertyholder.JavassistInstrumenter.getInstrumentedClass(JavassistInstrumenter.java:21)
at test_abstractpropertyholder.Main.main(Main.java:32)transforming
org.hibernate.cfg.AbstractPropertyHolder
Caused by: javassist.bytecode.BadBytecode: bad array type for AALOAD: null
at javassist.bytecode.stackmap.TypeData$ArrayElement.getName(TypeData.java:422)
at javassist.bytecode.stackmap.TypeData$TypeName.getExpected(TypeData.java:292)
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:175)
... 12 more
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2:12 p.m.
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Yanic Inghelbrecht commented on JASSIST-152:
--------------------------------------------
The attached source code demonstrates the issue. The AbstractPropertyHolder.class file is
also included (simply copied from the hibernate 4.0.1 final distribution).
The Main class contains a main method, run it to reproduce the issue. The
AbstractPropertyHolder.class file should be in the current directory when the code is run
(or you need to change the hardcoded filename).
The instrumentation fails for method buildColumnOverride of class AbstractPropertyHolder.
The instrumentation is really simple, it surrounds each call with a try/catch block that
(re)throws the caught exception. Note that if the (re)throw statement is removed the issue
does not occur.
instrumentation fails when building stackmap for local var of array
type : bad array type for AALOAD: null
----------------------------------------------------------------------------------------------------------
Key: JASSIST-152
URL: https://issues.jboss.org/browse/JASSIST-152
Project: Javassist
Issue Type: Bug
Affects Versions: 3.15.0-GA
Environment: Any
Reporter: Yanic Inghelbrecht
Assignee: Shigeru Chiba
Attachments: demonstration.zip
When trying to instrument the attached org.hibernate.cfg.AbstractPropertyHolder (copied
from the hibernate 4.0.1 final distribution), instrumentation fails with the following
exception :
java.lang.RuntimeException: fatal error:
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:177)
at javassist.bytecode.stackmap.MapMaker.fillStackMap(MapMaker.java:410)
at javassist.bytecode.stackmap.MapMaker.toStackMapBody(MapMaker.java:393)
at javassist.bytecode.stackmap.MapMaker.toStackMap(MapMaker.java:323)
at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:98)
at javassist.bytecode.MethodInfo.rebuildStackMap(MethodInfo.java:417)
at javassist.bytecode.MethodInfo.rebuildStackMapIf6(MethodInfo.java:399)
at javassist.expr.ExprEditor.doit(ExprEditor.java:113)
at javassist.CtBehavior.instrument(CtBehavior.java:672)
at test_abstractpropertyholder.SimpleTranslator.modify(SimpleTranslator.java:25)
at test_abstractpropertyholder.SimpleTranslator.onLoad(SimpleTranslator.java:19)
at
test_abstractpropertyholder.JavassistInstrumenter.getInstrumentedClass(JavassistInstrumenter.java:21)
at test_abstractpropertyholder.Main.main(Main.java:32)transforming
org.hibernate.cfg.AbstractPropertyHolder
Caused by: javassist.bytecode.BadBytecode: bad array type for AALOAD: null
at javassist.bytecode.stackmap.TypeData$ArrayElement.getName(TypeData.java:422)
at javassist.bytecode.stackmap.TypeData$TypeName.getExpected(TypeData.java:292)
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:175)
... 12 more
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2:22 p.m.
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Yanic Inghelbrecht commented on JASSIST-152:
--------------------------------------------
I've traced the failure to class javassist.bytecode.stackmap.TypeData, in particular
the nested class ArrayElement.
That class has a method getName :
public String getName() throws BadBytecode {
String name = array.getName();
if (name.length() > 1 && name.charAt(0) == '[') {
char c = name.charAt(1);
if (c == 'L')
return name.substring(2, name.length() - 1).replace('/',
'.');
else if (c == '[')
return name.substring(1);
}
throw new BadBytecode("bad array type for AALOAD: "
+ name);
}
In this test case the local variable 'name' is null.
However, the expectedName is not null. I was able to circumvent the issue by changing the
initialisation of that local variable from
String name = array.getName();
to
String name = array.getExpectedName();
I don't really understand the intricacies of the stackmap building code, so that is
probably not the right fix for this issue.
Best regards,
Yanic
instrumentation fails when building stackmap for local var of array
type : bad array type for AALOAD: null
----------------------------------------------------------------------------------------------------------
Key: JASSIST-152
URL: https://issues.jboss.org/browse/JASSIST-152
Project: Javassist
Issue Type: Bug
Affects Versions: 3.15.0-GA
Environment: Any
Reporter: Yanic Inghelbrecht
Assignee: Shigeru Chiba
Attachments: demonstration.zip
When trying to instrument the attached org.hibernate.cfg.AbstractPropertyHolder (copied
from the hibernate 4.0.1 final distribution), instrumentation fails with the following
exception :
java.lang.RuntimeException: fatal error:
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:177)
at javassist.bytecode.stackmap.MapMaker.fillStackMap(MapMaker.java:410)
at javassist.bytecode.stackmap.MapMaker.toStackMapBody(MapMaker.java:393)
at javassist.bytecode.stackmap.MapMaker.toStackMap(MapMaker.java:323)
at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:98)
at javassist.bytecode.MethodInfo.rebuildStackMap(MethodInfo.java:417)
at javassist.bytecode.MethodInfo.rebuildStackMapIf6(MethodInfo.java:399)
at javassist.expr.ExprEditor.doit(ExprEditor.java:113)
at javassist.CtBehavior.instrument(CtBehavior.java:672)
at test_abstractpropertyholder.SimpleTranslator.modify(SimpleTranslator.java:25)
at test_abstractpropertyholder.SimpleTranslator.onLoad(SimpleTranslator.java:19)
at
test_abstractpropertyholder.JavassistInstrumenter.getInstrumentedClass(JavassistInstrumenter.java:21)
at test_abstractpropertyholder.Main.main(Main.java:32)transforming
org.hibernate.cfg.AbstractPropertyHolder
Caused by: javassist.bytecode.BadBytecode: bad array type for AALOAD: null
at javassist.bytecode.stackmap.TypeData$ArrayElement.getName(TypeData.java:422)
at javassist.bytecode.stackmap.TypeData$TypeName.getExpected(TypeData.java:292)
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:175)
... 12 more
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2:26 p.m.
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]
Yanic Inghelbrecht commented on JASSIST-152:
--------------------------------------------
For your convenience, here's the code for the method for which the instrumentation
fails :
private static Map<String, Column[]> buildColumnOverride(XAnnotatedElement element,
String path) {
Map<String, Column[]> columnOverride = new HashMap<String, Column[]>();
if ( element == null ) return columnOverride;
AttributeOverride singleOverride = element.getAnnotation( AttributeOverride.class );
AttributeOverrides multipleOverrides = element.getAnnotation( AttributeOverrides.class
);
AttributeOverride[] overrides;
if ( singleOverride != null ) {
overrides = new AttributeOverride[] { singleOverride };
}
else if ( multipleOverrides != null ) {
overrides = multipleOverrides.value();
}
else {
overrides = null;
}
//fill overridden columns
if ( overrides != null ) {
for (AttributeOverride depAttr : overrides) {
columnOverride.put(
StringHelper.qualify( path, depAttr.name() ),
new Column[] { depAttr.column() }
);
}
}
return columnOverride;
}
(LGPL licensed, taken from the hibernate 4.0.1 final distribution)
instrumentation fails when building stackmap for local var of array
type : bad array type for AALOAD: null
----------------------------------------------------------------------------------------------------------
Key: JASSIST-152
URL: https://issues.jboss.org/browse/JASSIST-152
Project: Javassist
Issue Type: Bug
Affects Versions: 3.15.0-GA
Environment: Any
Reporter: Yanic Inghelbrecht
Assignee: Shigeru Chiba
Attachments: demonstration.zip
When trying to instrument the attached org.hibernate.cfg.AbstractPropertyHolder (copied
from the hibernate 4.0.1 final distribution), instrumentation fails with the following
exception :
java.lang.RuntimeException: fatal error:
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:177)
at javassist.bytecode.stackmap.MapMaker.fillStackMap(MapMaker.java:410)
at javassist.bytecode.stackmap.MapMaker.toStackMapBody(MapMaker.java:393)
at javassist.bytecode.stackmap.MapMaker.toStackMap(MapMaker.java:323)
at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:98)
at javassist.bytecode.MethodInfo.rebuildStackMap(MethodInfo.java:417)
at javassist.bytecode.MethodInfo.rebuildStackMapIf6(MethodInfo.java:399)
at javassist.expr.ExprEditor.doit(ExprEditor.java:113)
at javassist.CtBehavior.instrument(CtBehavior.java:672)
at test_abstractpropertyholder.SimpleTranslator.modify(SimpleTranslator.java:25)
at test_abstractpropertyholder.SimpleTranslator.onLoad(SimpleTranslator.java:19)
at
test_abstractpropertyholder.JavassistInstrumenter.getInstrumentedClass(JavassistInstrumenter.java:21)
at test_abstractpropertyholder.Main.main(Main.java:32)transforming
org.hibernate.cfg.AbstractPropertyHolder
Caused by: javassist.bytecode.BadBytecode: bad array type for AALOAD: null
at javassist.bytecode.stackmap.TypeData$ArrayElement.getName(TypeData.java:422)
at javassist.bytecode.stackmap.TypeData$TypeName.getExpected(TypeData.java:292)
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:175)
... 12 more
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1:26 a.m.
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]
Yanic Inghelbrecht edited comment on JASSIST-152 at 2/9/12 7:25 PM:
--------------------------------------------------------------------
The attached source code demonstrates the issue. The AbstractPropertyHolder.class file is
also included (simply copied from the hibernate 4.0.1 final distribution).
The Main class contains a main method, run it to reproduce the issue. The
AbstractPropertyHolder.class file should be in the current directory when the code is run
(or you need to change the hardcoded filename).
The instrumentation fails for method buildColumnOverride of class AbstractPropertyHolder.
The instrumentation is really simple, it surrounds each call with a try/catch block that
(re)throws the caught exception.
* edit *
Note that if the (re)throw statement is removed -the issue does not occur- another kind of
exception occurs :
"javassist.bytecode.BadBytecode: inconsistent stack height -1"
was (Author: yanic):
The attached source code demonstrates the issue. The AbstractPropertyHolder.class file
is also included (simply copied from the hibernate 4.0.1 final distribution).
The Main class contains a main method, run it to reproduce the issue. The
AbstractPropertyHolder.class file should be in the current directory when the code is run
(or you need to change the hardcoded filename).
The instrumentation fails for method buildColumnOverride of class AbstractPropertyHolder.
The instrumentation is really simple, it surrounds each call with a try/catch block that
(re)throws the caught exception. Note that if the (re)throw statement is removed the issue
does not occur.
instrumentation fails when building stackmap for local var of array
type : bad array type for AALOAD: null
----------------------------------------------------------------------------------------------------------
Key: JASSIST-152
URL: https://issues.jboss.org/browse/JASSIST-152
Project: Javassist
Issue Type: Bug
Affects Versions: 3.15.0-GA
Environment: Any
Reporter: Yanic Inghelbrecht
Assignee: Shigeru Chiba
Attachments: demonstration.zip
When trying to instrument the attached org.hibernate.cfg.AbstractPropertyHolder (copied
from the hibernate 4.0.1 final distribution), instrumentation fails with the following
exception :
java.lang.RuntimeException: fatal error:
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:177)
at javassist.bytecode.stackmap.MapMaker.fillStackMap(MapMaker.java:410)
at javassist.bytecode.stackmap.MapMaker.toStackMapBody(MapMaker.java:393)
at javassist.bytecode.stackmap.MapMaker.toStackMap(MapMaker.java:323)
at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:98)
at javassist.bytecode.MethodInfo.rebuildStackMap(MethodInfo.java:417)
at javassist.bytecode.MethodInfo.rebuildStackMapIf6(MethodInfo.java:399)
at javassist.expr.ExprEditor.doit(ExprEditor.java:113)
at javassist.CtBehavior.instrument(CtBehavior.java:672)
at test_abstractpropertyholder.SimpleTranslator.modify(SimpleTranslator.java:25)
at test_abstractpropertyholder.SimpleTranslator.onLoad(SimpleTranslator.java:19)
at
test_abstractpropertyholder.JavassistInstrumenter.getInstrumentedClass(JavassistInstrumenter.java:21)
at test_abstractpropertyholder.Main.main(Main.java:32)transforming
org.hibernate.cfg.AbstractPropertyHolder
Caused by: javassist.bytecode.BadBytecode: bad array type for AALOAD: null
at javassist.bytecode.stackmap.TypeData$ArrayElement.getName(TypeData.java:422)
at javassist.bytecode.stackmap.TypeData$TypeName.getExpected(TypeData.java:292)
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:175)
... 12 more
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1:49 p.m.
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Shigeru Chiba resolved JASSIST-152.
-----------------------------------
Fix Version/s: 3.16.0-GA
Resolution: Done
instrumentation fails when building stackmap for local var of array
type : bad array type for AALOAD: null
----------------------------------------------------------------------------------------------------------
Key: JASSIST-152
URL: https://issues.jboss.org/browse/JASSIST-152
Project: Javassist
Issue Type: Bug
Affects Versions: 3.15.0-GA
Environment: Any
Reporter: Yanic Inghelbrecht
Assignee: Shigeru Chiba
Fix For: 3.16.0-GA
Attachments: demonstration.zip
When trying to instrument the attached org.hibernate.cfg.AbstractPropertyHolder (copied
from the hibernate 4.0.1 final distribution), instrumentation fails with the following
exception :
java.lang.RuntimeException: fatal error:
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:177)
at javassist.bytecode.stackmap.MapMaker.fillStackMap(MapMaker.java:410)
at javassist.bytecode.stackmap.MapMaker.toStackMapBody(MapMaker.java:393)
at javassist.bytecode.stackmap.MapMaker.toStackMap(MapMaker.java:323)
at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:98)
at javassist.bytecode.MethodInfo.rebuildStackMap(MethodInfo.java:417)
at javassist.bytecode.MethodInfo.rebuildStackMapIf6(MethodInfo.java:399)
at javassist.expr.ExprEditor.doit(ExprEditor.java:113)
at javassist.CtBehavior.instrument(CtBehavior.java:672)
at test_abstractpropertyholder.SimpleTranslator.modify(SimpleTranslator.java:25)
at test_abstractpropertyholder.SimpleTranslator.onLoad(SimpleTranslator.java:19)
at
test_abstractpropertyholder.JavassistInstrumenter.getInstrumentedClass(JavassistInstrumenter.java:21)
at test_abstractpropertyholder.Main.main(Main.java:32)transforming
org.hibernate.cfg.AbstractPropertyHolder
Caused by: javassist.bytecode.BadBytecode: bad array type for AALOAD: null
at javassist.bytecode.stackmap.TypeData$ArrayElement.getName(TypeData.java:422)
at javassist.bytecode.stackmap.TypeData$TypeName.getExpected(TypeData.java:292)
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:175)
... 12 more
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11:43 p.m.
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]
Yanic Inghelbrecht commented on JASSIST-152:
--------------------------------------------
Thanks for the quick fix Chiba, it's appreciated!
How's the book btw? ;)
instrumentation fails when building stackmap for local var of array
type : bad array type for AALOAD: null
----------------------------------------------------------------------------------------------------------
Key: JASSIST-152
URL: https://issues.jboss.org/browse/JASSIST-152
Project: Javassist
Issue Type: Bug
Affects Versions: 3.15.0-GA
Environment: Any
Reporter: Yanic Inghelbrecht
Assignee: Shigeru Chiba
Fix For: 3.16.0-GA
Attachments: demonstration.zip
When trying to instrument the attached org.hibernate.cfg.AbstractPropertyHolder (copied
from the hibernate 4.0.1 final distribution), instrumentation fails with the following
exception :
java.lang.RuntimeException: fatal error:
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:177)
at javassist.bytecode.stackmap.MapMaker.fillStackMap(MapMaker.java:410)
at javassist.bytecode.stackmap.MapMaker.toStackMapBody(MapMaker.java:393)
at javassist.bytecode.stackmap.MapMaker.toStackMap(MapMaker.java:323)
at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:98)
at javassist.bytecode.MethodInfo.rebuildStackMap(MethodInfo.java:417)
at javassist.bytecode.MethodInfo.rebuildStackMapIf6(MethodInfo.java:399)
at javassist.expr.ExprEditor.doit(ExprEditor.java:113)
at javassist.CtBehavior.instrument(CtBehavior.java:672)
at test_abstractpropertyholder.SimpleTranslator.modify(SimpleTranslator.java:25)
at test_abstractpropertyholder.SimpleTranslator.onLoad(SimpleTranslator.java:19)
at
test_abstractpropertyholder.JavassistInstrumenter.getInstrumentedClass(JavassistInstrumenter.java:21)
at test_abstractpropertyholder.Main.main(Main.java:32)transforming
org.hibernate.cfg.AbstractPropertyHolder
Caused by: javassist.bytecode.BadBytecode: bad array type for AALOAD: null
at javassist.bytecode.stackmap.TypeData$ArrayElement.getName(TypeData.java:422)
at javassist.bytecode.stackmap.TypeData$TypeName.getExpected(TypeData.java:292)
at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:175)
... 12 more
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4445
days inactive
4466
days old
7 comments
2 participants
participants (2)
-
Shigeru Chiba (JIRA) -
Yanic Inghelbrecht (JIRA)