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From "Andrew Cornwall (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-5489) [pack200][classlib] ClassBands.getCodeHandlerClassRCN() sometimes contains nulls?
Date Tue, 12 Feb 2008 01:01:34 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-5489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12567909#action_12567909
] 

Andrew Cornwall commented on HARMONY-5489:
------------------------------------------

This issue may be due in part to my using the test Unpack method (which uses Segment instead
of Archive). When I use new Archive(in, out) and unpack(), I see a different exception which
may be unrelated.

> [pack200][classlib] ClassBands.getCodeHandlerClassRCN() sometimes contains nulls?
> ---------------------------------------------------------------------------------
>
>                 Key: HARMONY-5489
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5489
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>         Environment: All Pack200
>            Reporter: Andrew Cornwall
>         Attachments: mypack.pack
>
>
> The ClassBands.getCodeHandlerClassRCN() method answers an array of arrays of Strings
(which is stored as handlerClassTypes in BcBands.unpack). That structure sometimes contains
what appear to be inappropriate nulls, which leads to the following code failing:
> (from BcBands.unpack()):
>                     if(handlerCount != null) {
>                         for (int j = 0; j < handlerCount[i]; j++) {
>                             String handlerClass = handlerClassTypes[i][j];
>                             CPClass cpHandlerClass = new CPClass(handlerClass);
>                             ExceptionTableEntry entry = new ExceptionTableEntry(
>                                     handlerStartPCs[i][j], handlerEndPCs[i][j],
>                                     handlerCatchPCs[i][j], cpHandlerClass);
>                             exceptionTable.add(entry);
>                         }
> handlerClassTypes[i][j] can be null, which means that handlerClass is null. The code
then fails when trying to create a new CPClass(null).

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