[jbosstools-issues] [JBoss JIRA] Created: (JBDS-343) Project loaded into JBoss DevStudio can't be opened, causes NullPointerException in "EJB3ClasspathContainer.getClasspathEntries()"

[David Tonhofer (JIRA)]

Project loaded into JBoss DevStudio can't be opened, causes NullPointerException in "EJB3ClasspathContainer.getClasspathEntries()"
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                 Key: JBDS-343
                 URL: http://jira.jboss.com/jira/browse/JBDS-343
             Project: Developer Studio
          Issue Type: Bug
    Affects Versions: 1.0.0.GA
         Environment: Linux Fedora 8, 2.6.24.7-92.fc8
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_12-b04)
Java HotSpot(TM) Client VM (build 1.5.0_12-b04, mixed mode, sharing)

            Reporter: David Tonhofer
         Assigned To: Max Rydahl Andersen


A project exported from subversion into JBoss DevStudio cannot be opened. The Eclipse log shows NullPointerException, either at startup or later. Here is the one at startup:

!ENTRY org.eclipse.core.jobs 4 2 2008-05-23 15:25:55.615
!MESSAGE An internal error occurred during: "Initializing Java Tooling".
!STACK 0
java.lang.NullPointerException
        at org.jboss.ide.eclipse.as.classpath.core.ejb3.EJB3ClasspathContainer.getClasspathEntries(EJB3ClasspathContainer.java:113)
        at org.eclipse.jdt.internal.core.JavaModelManager.containerPutIfInitializingWithSameEntries(JavaModelManager.java:547)
        at org.eclipse.jdt.internal.core.SetContainerOperation.executeOperation(SetContainerOperation.java:49)
        at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:720)
        at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1797)
       ....


Speculation on what went wrong: The .classpath of the project has a Windows-Nature Absolute Path (a Bad Thing in our mixed environment), somehow created on an Eclipse with manually loaded-in JBoss Tools:


<?xml version="1.0" encoding="UTF-8"?>
<classpath>
	<classpathentry kind="src" path="src"/>
	<classpathentry kind="src" path="test"/>
	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
	<classpathentry combineaccessrules="false" kind="src" path="/jb_seam_demox-ejb"/>
	<classpathentry kind="lib" path="D:/jboss-seam-2.0.0.GA/lib/testng.jar"/>
	<classpathentry kind="con" path="org.jboss.ide.eclipse.as.classpath.core.ejb3.classpathContainer/JBoss 4.2 Server"/>
	<classpathentry kind="output" path="bin"/>
</classpath>


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