Community
Participate
Working Groups
20030214 When I loaded the platform-ui module from the repository I got the NPE below. I am not sure what the condition was to make this happen as I have been loading successfully all day. java.lang.NullPointerException at org.eclipse.jdt.internal.core.builder.BuildNotifier.aboutToCompile (BuildNotifier.java:49) at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile (AbstractImageBuilder.java:175) at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile (AbstractImageBuilder.java:168) at org.eclipse.jdt.internal.core.builder.IncrementalImageBuilder.build (IncrementalImageBuilder.java:108) at org.eclipse.jdt.internal.core.builder.JavaBuilder.buildDeltas (JavaBuilder.java:201) at org.eclipse.jdt.internal.core.builder.JavaBuilder.build (JavaBuilder.java:129) at org.eclipse.core.internal.events.BuildManager$2.run (BuildManager.java:424) at org.eclipse.core.runtime.Platform.run(Platform.java(Compiled Code)) at org.eclipse.core.runtime.Platform.run(Platform.java(Compiled Code)) at org.eclipse.core.internal.events.BuildManager.basicBuild (BuildManager.java:125) at org.eclipse.core.internal.events.BuildManager.basicBuild (BuildManager.java:181) at org.eclipse.core.internal.events.BuildManager.basicBuild (BuildManager.java:191) at org.eclipse.core.internal.events.BuildManager$1.run (BuildManager.java:151) at org.eclipse.core.runtime.Platform.run(Platform.java(Compiled Code)) at org.eclipse.core.runtime.Platform.run(Platform.java(Compiled Code)) at org.eclipse.core.internal.events.BuildManager.basicBuild (BuildManager.java:165) at org.eclipse.core.internal.events.BuildManager.basicBuildLoop (BuildManager.java:243) at org.eclipse.core.internal.events.BuildManager.build (BuildManager.java:212) at org.eclipse.core.internal.resources.Workspace.endOperation (Workspace.java(Compiled Code)) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java (Compiled Code)) at org.eclipse.team.internal.ccvs.core.resources.CVSWorkspaceRoot.checkout (CVSWorkspaceRoot.java:214) at org.eclipse.team.internal.ccvs.ui.actions.CheckoutAction$2.run (CheckoutAction.java:77) at org.eclipse.team.internal.ccvs.ui.repo.RepositoryManager.run (RepositoryManager.java:786) at org.eclipse.team.internal.ccvs.ui.actions.CVSAction$1.run (CVSAction.java:242) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run (ModalContext.java:95) !ENTRY org.eclipse.jdt.core 2 75 Feb 14, 2003 14:36:53.641 !MESSAGE java.lang.NullPointerException encountered while running org.eclipse.jdt.internal.core.builder.JavaBuilder. !STACK 0 java.lang.NullPointerException at org.eclipse.jdt.internal.core.builder.BuildNotifier.aboutToCompile (BuildNotifier.java:49) at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile (AbstractImageBuilder.java:175) at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile (AbstractImageBuilder.java:168) at org.eclipse.jdt.internal.core.builder.IncrementalImageBuilder.build (IncrementalImageBuilder.java:108) at org.eclipse.jdt.internal.core.builder.JavaBuilder.buildDeltas (JavaBuilder.java:201) at org.eclipse.jdt.internal.core.builder.JavaBuilder.build (JavaBuilder.java:129) at org.eclipse.core.internal.events.BuildManager$2.run (BuildManager.java:424) at org.eclipse.core.runtime.Platform.run(Platform.java(Compiled Code)) at org.eclipse.core.runtime.Platform.run(Platform.java(Compiled Code)) at org.eclipse.core.internal.events.BuildManager.basicBuild (BuildManager.java:125) at org.eclipse.core.internal.events.BuildManager.basicBuild (BuildManager.java:181) at org.eclipse.core.internal.events.BuildManager.basicBuild (BuildManager.java:191) at org.eclipse.core.internal.events.BuildManager$1.run (BuildManager.java:151) at org.eclipse.core.runtime.Platform.run(Platform.java(Compiled Code)) at org.eclipse.core.runtime.Platform.run(Platform.java(Compiled Code)) at org.eclipse.core.internal.events.BuildManager.basicBuild (BuildManager.java:165) at org.eclipse.core.internal.events.BuildManager.basicBuildLoop (BuildManager.java:243) at org.eclipse.core.internal.events.BuildManager.build (BuildManager.java:212) at org.eclipse.core.internal.resources.Workspace.endOperation (Workspace.java(Compiled Code)) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java (Compiled Code)) at org.eclipse.team.internal.ccvs.core.resources.CVSWorkspaceRoot.checkout (CVSWorkspaceRoot.java:214) at org.eclipse.team.internal.ccvs.ui.actions.CheckoutAction$2.run (CheckoutAction.java:77) at org.eclipse.team.internal.ccvs.ui.repo.RepositoryManager.run (RepositoryManager.java:786) at org.eclipse.team.internal.ccvs.ui.actions.CVSAction$1.run (CVSAction.java:242) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run (ModalContext.java:95)
Offending line was 'message' variable declaration. public void aboutToCompile(SourceFile unit) { String message = Util.bind("build.compiling", unit.resource.getFullPath ().removeLastSegments(1).makeRelative().toString()); //$NON-NLS-1$ subTask(message); }
unit.resource.getFullPath().removeLastSegments(1).makeRelative().toString() The resource field of a sourceFile is initialized in the constructor and never changed so it cannot be null. None of the methods sent afterwards ever answer null. Tod was running the problematic VM from last spring which produced numerous non- reproduceable NPE. Closing.
