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From "Mantas Balnys (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BCEL-158) Eclipse debugger fails on BCEL-instrumented methods having generic local variables.
Date Mon, 09 Sep 2013 10:57:54 GMT

    [ https://issues.apache.org/jira/browse/BCEL-158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13761766#comment-13761766
] 

Mantas Balnys commented on BCEL-158:
------------------------------------

I've added a fix in Type.getType(String signature) method to remove all generics information.


        	int index = signature.indexOf('<'); // Look for generics and ignore it;
        	if (index < 0) {
        		index = signature.indexOf(';'); // Look for closing ';'
        		if (index < 0) {
        			throw new ClassFormatException("Invalid signature: " + signature);
        		}
        	}
        	else if (index == 0) {
        		throw new ClassFormatException("Invalid signature: " + signature);
        	}



Could this be a bug fix?

Note that there is same code in "org.apache.bcel.classfile.Utility.signatureToString( String
signature, boolean chopit )"
                
> Eclipse debugger fails on BCEL-instrumented methods having generic local variables.
> -----------------------------------------------------------------------------------
>
>                 Key: BCEL-158
>                 URL: https://issues.apache.org/jira/browse/BCEL-158
>             Project: Commons BCEL
>          Issue Type: Bug
>          Components: Main
>    Affects Versions: unspecified
>         Environment: Operating System: All
> Platform: PC
>            Reporter: Byron Hawkins
>            Assignee: Apache Commons Developers
>
> When any method is instrumented with BCEL to include additional constants, and the method
was originally compiled with local variables that have generic arguments, the method is no
longer viewable in the Eclipse debugger. For these methods, it complains "com.sun.jdi.InternalException:
Got error code in reply:35 occurred retrieving 'this' from stack frame." It sounds like the
local variable table is somehow not compatible with the debugger, even if the instrumentation
activity did not touch the generic local variables. 
> I'm currently using the 6.0-20110805.040858-2 snapshot. Please let me know if there is
any workaround. Thanks!

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