[jira] Updated: (HARMONY-5388) [pack200][classlib] Label bytecode offsets can be incorrect

["Andrew Cornwall (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HARMONY-5388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Cornwall updated HARMONY-5388:
-------------------------------------

    Summary: [pack200][classlib] Label bytecode offsets can be incorrect  (was: [pack200][classlib])

> [pack200][classlib] Label bytecode offsets can be incorrect
> -----------------------------------------------------------
>
>                 Key: HARMONY-5388
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5388
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>         Environment: All Pack200
>            Reporter: Andrew Cornwall
>         Attachments: main.patch
>
>
> Pack200 bytecode offsets are not being calculated correctly when multi-instruction bytecodes are present in the bytecode stream. This causes a problem for label bytecodes which follow multi-instruction bytecodes.
> In short, if you have:
> <other bytecodes>
> aload0_*
> <other bytecodes>
> if*, goto*, or jsr*
> then the label of the if*, goto* or jsr* instruction will be off by the number of multi-instruction bytecodes which come before it. This will usually result in an exception.

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