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https://issues.apache.org/jira/browse/BCEL-138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Bourg updated BCEL-138:
--------------------------------
Priority: Blocker
Environment: (was: Operating System: Windows XP
Platform: PC)
Fix Version/s: 6.0
> FieldInstruction.getFieldSize() doesn't decode Type.getTypeSize() output
> ------------------------------------------------------------------------
>
> Key: BCEL-138
> URL: https://issues.apache.org/jira/browse/BCEL-138
> Project: Commons BCEL
> Issue Type: Bug
> Components: Main
> Affects Versions: unspecified
> Reporter: Enrico Gueli
> Assignee: Apache Commons Developers
> Priority: Blocker
> Fix For: 6.0
>
> Attachments: patch.txt
>
>
> The method getTypeSize(String) in the Type class returns two outputs encoded
> in one integer: the lowest two bits contain the field size (0, 1 or 2), the
> remaining ones the no. of consumed characters in the signature. Type provides
> two private static methods, size() and consumed(), to split these values
> apart.
> The method getFieldSize(ConstantPoolGen) in the FieldInstrucion class uses
> Type.getTypeSize, unaware that the output is encoded. Therefore, the returned
> size is different than expected. This causes, among other things, a bigger or
> smaller max stack depth value for generated methods that leads to unused
> stack memory or a "java.lang.VerifyError: stack size too large" exception,
> respectively.
> A fix can be made by making the above-mentioned static methods
> package-visible and modifying getFieldSize() to use them.
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