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Try the following steps:
1. start eclipse without a myeclipse license
2. open a struts-config.xml file
3. the subscription problem dialog appears
3. leave the editor open
4. close eclipse
5. open eclipse again (it’s important to have a struts-config editor open)
6. after startup the package explorer fails with a message like ‘An error has occured when opening this view’ and also the following stacktrace:java.lang.NullPointerException
at com.genuitec.eclipse.j2eedt.core.J2EEContainerInitializer.?(Unknown Source)
at com.genuitec.eclipse.j2eedt.core.J2EEContainerInitializer.initialize(Unknown Source)
at org.eclipse.jdt.internal.core.JavaModelManager.initializeContainer(JavaModelManager.java:1187)
at org.eclipse.jdt.internal.core.JavaModelManager.getClasspathContainer(JavaModelManager.java:826)
at org.eclipse.jdt.core.JavaCore.getClasspathContainer(JavaCore.java:1183)
at org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:1877)
at org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:1788)
at org.eclipse.jdt.core.JavaCore.setClasspathContainer(JavaCore.java:3401)
at org.eclipse.jdt.internal.launching.JREContainerInitializer.initialize(JREContainerInitializer.java:51)
at org.eclipse.jdt.internal.core.JavaModelManager.initializeContainer(JavaModelManager.java:1187)
at org.eclipse.jdt.internal.core.JavaModelManager.getClasspathContainer(JavaModelManager.java:826)
at org.eclipse.jdt.core.JavaCore.getClasspathContainer(JavaCore.java:1183)
at org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:1877)
at org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:1788)
at org.eclipse.jdt.internal.core.search.JavaSearchScope.add(JavaSearchScope.java:78)
at org.eclipse.jdt.internal.core.search.JavaWorkspaceScope.initialize(JavaWorkspaceScope.java:80)
at org.eclipse.jdt.internal.core.search.JavaSearchScope.<init>(JavaSearchScope.java:52)
at org.eclipse.jdt.internal.core.search.JavaWorkspaceScope.<init>(JavaWorkspaceScope.java:31)
at org.eclipse.jdt.core.search.SearchEngine.createWorkspaceScope(SearchEngine.java:424)
at org.eclipse.jdt.internal.corext.util.AllTypesCache.search(AllTypesCache.java:538)
at org.eclipse.jdt.internal.corext.util.AllTypesCache$TypeCacher.doSearchTypes(AllTypesCache.java:196)
at org.eclipse.jdt.internal.corext.util.AllTypesCache$TypeCacher.run(AllTypesCache.java:165)Configuration:
Windows 2000 sp4
J2re 1.4.2_04
Eclipse 3.0 M9
MyEclipse 3.8 beta1Thank you for reporting this and the detailed steps to reproduce it. I duplicated this problem and logged it as a bug against 3.8 Beta-1 and will address it in beta 2.
For everyone, if this occurs you may work around the problem by closing all editors and then reopening Eclipse.
