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https://issues.apache.org/jira/browse/BCEL-180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14168466#comment-14168466
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Maxim Degtyarev commented on BCEL-180:
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>> In some cases such as JDI API we have the class constant pool content only
>> in form of separate byte array.
> What do you mean? Please provide some reference.
Assume we need to disassemble some code, being traced using Java Debug
Interface (JDI) API
http://docs.oracle.com/javase/7/docs/jdk/api/jpda/jdi/overview-summary.html
To do so using BCEL we need to pass to the method Utility.codeToString()
- byte array with method bytecodes which can be retrieved by calling
http://docs.oracle.com/javase/7/docs/jdk/api/jpda/jdi/com/sun/jdi/Method.html#bytecodes%28%29
- ConstantPool instance
So we need a way to create ConstantPool instance from byte array we can
retrieve by calling
http://docs.oracle.com/javase/7/docs/jdk/api/jpda/jdi/com/sun/jdi/ReferenceType.html#constantPool%28%29
N.B. Byte array returned by ReferenceType::constantPool() does not contain
entry count at the start expected by ConstantPool(DataInputStream)
implementation.
> Enable loading ConstantPool from a byte array
> ---------------------------------------------
>
> Key: BCEL-180
> URL: https://issues.apache.org/jira/browse/BCEL-180
> Project: Commons BCEL
> Issue Type: Improvement
> Reporter: Maxim Degtyarev
>
> In some cases such as JDI API we have the class constant pool content only in
> form of separate byte array. Currently there is no way to load constant pool
> from byte array.
> The proposed patch add new public constructor to the
> org.apache.bcel.classfile.ConstantPool that allow loading ConstantPool from
> byte array representation.
> GitHub pull request: https://github.com/apache/commons-bcel/pull/1
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