Description Raj Mandayam 2006-07-11 13:52:32 EDT

Steps (I know it sounds convoluted)
1. Create a plugin project, choose eclipse version 3.0
2. Open plugin.xml, add the org.junit (3.8) as a dependency
3. Create a test case java class extending the junit base TestCase class, 
4. Export the plugin project with source using (File-Export-Plugin development-Deployable plugin ....), export as a directory
5. Delete the original plugin project from the workspace.
6. Now Import the (exported) plugin project as a binary project (File-Import-Plugin development-Plugins and fragments)
7. Now select the project in the workspace and Right click and 
   Run as->Junit plugin test
8. Get error in launching, there is an error in log


eclipse.buildId=I20060519-1206
java.version=1.5.0_06
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Framework arguments:  -showlocation
Command-line arguments:  -data D:\eclipse\...\workspace1 -showlocation

Error
Tue Jul 11 13:52:47 EDT 2006
An internal error occurred during: "Launching".

java.lang.NullPointerException
	at org.eclipse.jdt.internal.core.hierarchy.HierarchyBuilder.<init>(HierarchyBuilder.java:80)
	at org.eclipse.jdt.internal.core.hierarchy.RegionBasedHierarchyBuilder.<init>(RegionBasedHierarchyBuilder.java:37)
	at org.eclipse.jdt.internal.core.hierarchy.RegionBasedTypeHierarchy.compute(RegionBasedTypeHierarchy.java:73)
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.refresh(TypeHierarchy.java:1235)
	at org.eclipse.jdt.internal.core.CreateTypeHierarchyOperation.executeOperation(CreateTypeHierarchyOperation.java:90)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:720)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:779)
	at org.eclipse.jdt.internal.core.JavaProject.newTypeHierarchy(JavaProject.java:2641)
	at org.eclipse.jdt.internal.core.JavaProject.newTypeHierarchy(JavaProject.java:2619)
	at org.eclipse.jdt.internal.junit.util.TestSearchEngine.findTestCases(TestSearchEngine.java:227)
	at org.eclipse.jdt.internal.junit.util.TestSearchEngine.collectTypes(TestSearchEngine.java:204)
	at org.eclipse.jdt.internal.junit.util.TestSearchEngine.doFindJUnit3Tests(TestSearchEngine.java:167)
	at org.eclipse.jdt.internal.junit.launcher.JUnit3TestFinder.findTestsInContainer(JUnit3TestFinder.java:32)
	at org.eclipse.jdt.internal.junit.launcher.ContainerTestSearchExtent.find(ContainerTestSearchExtent.java:42)
	at org.eclipse.jdt.internal.junit.launcher.TestKind.search(TestKind.java:107)
	at org.eclipse.jdt.internal.junit.launcher.TestKindRegistry.getTestTypes(TestKindRegistry.java:181)
	at org.eclipse.jdt.internal.junit.launcher.JUnitBaseLaunchConfiguration.findTestTypes(JUnitBaseLaunchConfiguration.java:126)
	at org.eclipse.pde.internal.ui.launcher.JUnitLaunchConfiguration.launch(JUnitLaunchConfiguration.java:83)
	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:639)
	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:565)
	at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:754)
	at org.eclipse.debug.internal.ui.DebugUIPlugin$6.run(DebugUIPlugin.java:944)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)




Please note the steps I mentioned are a simplificaiton of our scenario where we had a plugin with junit test cases that we wanted to debug, so we imported it into our eclipse environment as a binary project (we did not have source at that time) and were trying to run it as a junit plugin.