Description Flavio B 2016-10-09 07:57:47 EDT

Created attachment 264748 [details]
Nullpointer popup

Working on java project I often receive the following error (also pressing F5 on the project):

From Error Log:
Problems occurred when invoking code from plug-in: "org.eclipse.jface".

java.lang.NullPointerException
	at org.eclipse.ui.internal.misc.ProgramImageDescriptor.hashCode(ProgramImageDescriptor.java:74)
	at org.eclipse.jdt.ui.JavaElementImageDescriptor.hashCode(JavaElementImageDescriptor.java:207)
	at java.util.HashMap.hash(Unknown Source)
	at java.util.HashMap.get(Unknown Source)
	at java.util.Collections$SynchronizedMap.get(Unknown Source)
	at org.eclipse.jdt.internal.ui.viewsupport.ImageDescriptorRegistry.get(ImageDescriptorRegistry.java:57)
	at org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider.getImageLabel(JavaElementImageProvider.java:104)
	at org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider.getImageLabel(JavaElementImageProvider.java:98)
	at org.eclipse.jdt.internal.ui.viewsupport.JavaUILabelProvider.getImage(JavaUILabelProvider.java:142)
	at org.eclipse.jdt.internal.ui.packageview.PackageExplorerLabelProvider.getImage(PackageExplorerLabelProvider.java:137)
	at org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.getImage(DelegatingStyledCellLabelProvider.java:195)
	at org.eclipse.jface.viewers.DecoratingStyledCellLabelProvider.getImage(DecoratingStyledCellLabelProvider.java:168)
	at org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.update(DelegatingStyledCellLabelProvider.java:121)
	at org.eclipse.jface.viewers.DecoratingStyledCellLabelProvider.update(DecoratingStyledCellLabelProvider.java:131)
	at org.eclipse.jface.viewers.ViewerColumn.refresh(ViewerColumn.java:141)
	at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:949)
	at org.eclipse.jface.viewers.AbstractTreeViewer$UpdateItemSafeRunnable.run(AbstractTreeViewer.java:118)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173)
	at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:1029)
	at org.eclipse.jdt.internal.ui.viewsupport.ProblemTreeViewer.doUpdateItem(ProblemTreeViewer.java:71)
	at org.eclipse.jdt.internal.ui.viewsupport.ResourceToItemsMapper.updateItem(ResourceToItemsMapper.java:75)
	at org.eclipse.jdt.internal.ui.viewsupport.ResourceToItemsMapper.resourceChanged(ResourceToItemsMapper.java:63)
	at org.eclipse.jdt.internal.ui.viewsupport.ProblemTreeViewer.handleLabelProviderChanged(ProblemTreeViewer.java:192)
	at org.eclipse.jface.viewers.ContentViewer$1.labelProviderChanged(ContentViewer.java:99)
	at org.eclipse.jface.viewers.BaseLabelProvider$1.run(BaseLabelProvider.java:72)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173)
	at org.eclipse.jface.viewers.BaseLabelProvider.fireLabelProviderChanged(BaseLabelProvider.java:69)
	at org.eclipse.jface.viewers.DecoratingStyledCellLabelProvider.lambda$0(DecoratingStyledCellLabelProvider.java:75)
	at org.eclipse.ui.internal.decorators.DecoratorManager$1.run(DecoratorManager.java:374)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.decorators.DecoratorManager.fireListener(DecoratorManager.java:371)
	at org.eclipse.ui.internal.decorators.DecorationScheduler$3.runInUIThread(DecorationScheduler.java:511)
	at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:97)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4203)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3819)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1121)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1022)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:150)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:687)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:604)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:138)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:610)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1519)



Session data:
eclipse.buildId=4.6.1.M20160907-1200
java.version=1.8.0_101
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=it_IT
Framework arguments:  -product org.eclipse.epp.package.jee.product
Command-line arguments:  -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.jee.product


This makes Eclipse almost unusable.