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From "Torsten Curdt (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SANDBOX-277) [javaflow] Uninitialized local variable related bug
Date Tue, 03 Feb 2009 09:17:59 GMT

    [ https://issues.apache.org/jira/browse/SANDBOX-277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12669901#action_12669901
] 

Torsten Curdt commented on SANDBOX-277:
---------------------------------------

A patch for the test cases would be appreciated.

> [javaflow] Uninitialized local variable related bug
> ---------------------------------------------------
>
>                 Key: SANDBOX-277
>                 URL: https://issues.apache.org/jira/browse/SANDBOX-277
>             Project: Commons Sandbox
>          Issue Type: Bug
>          Components: Javaflow
>            Reporter: Fernando Petrola
>            Priority: Critical
>
> Executing this test class:
> ------------------------------------------------------------------------------------------------------------------------------------------------
> package test;
> import java.net.URL;
> import org.apache.commons.javaflow.Continuation;
> import org.apache.commons.javaflow.ContinuationClassLoader;
> public class TestNullBug
> {
>     public static class Test implements Runnable
>     {
> 	public class NullLocalVariable
> 	{
> 	    public void method1()
> 	    {
> 		Integer result= null;
> 		if (result != 0)
> 		    result= 1;
> 	    }
> 	}
> 	public void run()
> 	{
> 	    NullLocalVariable bug1= new NullLocalVariable();
> 	}
>     }
>     public static void main(String[] args) throws Exception
>     {
> 	ContinuationClassLoader classLoader= new ContinuationClassLoader(new URL[] {}, TestNullBug.Test.class.getClassLoader());
> 	classLoader.addLoaderPackageRoot(TestNullBug.Test.class.getPackage().getName());
> 	Runnable test= (Runnable) classLoader.loadClass(TestNullBug.Test.class.getName()).newInstance();
> 	Continuation.startWith(test);
>     }
> }
> ------------------------------------------------------------------------------------------------------------------------------------------------
> I get the following stacktrace:
> Exception in thread "main" java.lang.NoClassDefFoundError: null
> 	at test.TestNullBug$Test.run(TestNullBug.java:23)
> 	at org.apache.commons.javaflow.bytecode.StackRecorder.execute(StackRecorder.java:104)
> 	at org.apache.commons.javaflow.Continuation.continueWith(Continuation.java:182)
> 	at org.apache.commons.javaflow.Continuation.startWith(Continuation.java:136)
> 	at org.apache.commons.javaflow.Continuation.startWith(Continuation.java:107)
> 	at test.TestNullBug.main(TestNullBug.java:32)
> Caused by: java.lang.ClassNotFoundException: null
> 	at org.apache.commons.javaflow.ContinuationClassLoader.findClass(ContinuationClassLoader.java:419)
> 	at org.apache.commons.javaflow.ContinuationClassLoader.loadClass(ContinuationClassLoader.java:306)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
> 	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
> 	... 6 more

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