[jira] Updated: (HARMONY-5489) [pack200][classlib] ClassBands.getCodeHandlerClassRCN() sometimes contains nulls?

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

     [ https://issues.apache.org/jira/browse/HARMONY-5489?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Cornwall updated HARMONY-5489:
-------------------------------------

    Attachment: mypack.pack

Pack200 file which triggers this error in my workspace.

> [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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