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https://issues.apache.org/jira/browse/BCEL-13?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Bourg updated BCEL-13:
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Description:
I have discovered a class file that has multiple CONSTANT_Class entries in the
ConstantPool that point to the same CONSTANT_Utf8 class name string. The
ConstantPoolGen.lookupClass(String) method seems to return the index for the
LAST of the two CONSTANT_Class entries instead of the first. Details are
available from:
http://www.markcrocker.com/~mcrocker/Computer/Purifier/wrongClassrefIssue.shtml
This is a problem because I am attempting to create pure Java J2ME preverifier
(The Purifier: http://www.markcrocker.com/~mcrocker/Computer/Purifier/).
Ideally, it should produce the same StackMaps as SUN's preverifier. However,
in the case of this unusual class, it cannot because it uses BCEL and BCEL's
lookupClass produces a different index than SUN's preverifier for the
particular class that happens to have two possible indecies.
was:
I have discovered a class file that has multiple CONSTANT_Class entries in the
ConstantPool that point to the same CONSTANT_Utf8 class name string. The
ConstantPoolGen.lookupClass(String) method seems to return the index for the
LAST of the two CONSTANT_Class entries instead of the first. Details are
available from:
http://www.markcrocker.com/~mcrocker/Computer/Purifier/wrongClassrefIssue.shtml
This is a problem because I am attempting to create pure Java J2ME preverifier
(The Purifier: http://www.markcrocker.com/~mcrocker/Computer/Purifier/).
Ideally, it should produce the same StackMaps as SUN's preverifier. However, in
the case of this unusual class, it cannot because it uses BCEL and BCEL's
lookupClass produces a different index than SUN's preverifier for the particular
class that happens to have two possible indecies.
Priority: Minor
Environment: URL:
http://www.markcrocker.com/~mcrocker/Computer/Purifier/wrongClassrefIssue.shtml
(was: Operating System: All
Platform: All
URL:
http://www.markcrocker.com/~mcrocker/Computer/Purifier/wrongClassrefIssue.shtml)
Fix Version/s: 5.2
Priority: (was: P3)
Severity: (was: normal)
> ConstantPoolGen.lookupClass(String) finds LAST entry rather than first
> ----------------------------------------------------------------------
>
> Key: BCEL-13
> URL: https://issues.apache.org/jira/browse/BCEL-13
> Project: Commons BCEL
> Issue Type: Bug
> Components: Main
> Affects Versions: 5.0
> Environment: URL:
> http://www.markcrocker.com/~mcrocker/Computer/Purifier/wrongClassrefIssue.shtml
> Reporter: Mark Crocker
> Assignee: Apache Commons Developers
> Priority: Minor
> Fix For: 5.2
>
>
> I have discovered a class file that has multiple CONSTANT_Class entries in
> the ConstantPool that point to the same CONSTANT_Utf8 class name string. The
> ConstantPoolGen.lookupClass(String) method seems to return the index for the
> LAST of the two CONSTANT_Class entries instead of the first. Details are
> available from:
> http://www.markcrocker.com/~mcrocker/Computer/Purifier/wrongClassrefIssue.shtml
> This is a problem because I am attempting to create pure Java J2ME
> preverifier (The Purifier:
> http://www.markcrocker.com/~mcrocker/Computer/Purifier/).
> Ideally, it should produce the same StackMaps as SUN's preverifier. However,
> in the case of this unusual class, it cannot because it uses BCEL and BCEL's
> lookupClass produces a different index than SUN's preverifier for the
> particular class that happens to have two possible indecies.
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