[jboss-jira] [JBoss JIRA] Commented: (JASSIST-82) FieldAccess.getField() throws RuntimeException: javassist.bytecode.ClassInfo cannot be cast to javassist.bytecode.FieldrefInfo

Tue May 5 11:29:46 EDT 2009

    [ https://jira.jboss.org/jira/browse/JASSIST-82?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12465808#action_12465808 ] 

Shigeru Chiba commented on JASSIST-82:
--------------------------------------

Since getField() usually works fine, I need an exact test case that produces the above bug.

Could you show me the class file of the target (instrumented) class and the source of the program that instrumented the target class?

Thank you!

> FieldAccess.getField() throws RuntimeException: javassist.bytecode.ClassInfo cannot be cast to javassist.bytecode.FieldrefInfo
> ------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: JASSIST-82
>                 URL: https://jira.jboss.org/jira/browse/JASSIST-82
>             Project: Javassist
>          Issue Type: Bug
>    Affects Versions: 3.10.0.GA
>            Reporter: Martin Burger
>            Assignee: Shigeru Chiba
>
> My code calls javassist.expr.FieldAccess.getField() on an instrumented class. This method call fails with a RuntimeException: javassist.bytecode.ClassInfo cannot be cast to javassist.bytecode.FieldrefInfo:
> java.lang.ClassCastException: javassist.bytecode.ClassInfo cannot be cast to javassist.bytecode.FieldrefInfo
>         at javassist.bytecode.ConstPool.getFieldrefClassName(ConstPool.java:258)
>         at javassist.expr.FieldAccess.getClassName(FieldAccess.java:97)
>         at javassist.expr.FieldAccess.getCtClass(FieldAccess.java:89)
>         at javassist.expr.FieldAccess.getField(FieldAccess.java:112)

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