java.lang.NullPointerException: This exception has no message.

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Spring JIRA by chanwook park, 1 year ago
This exception has no message.
via Spring JIRA by chanwook park, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at org.eclipse.osgi.framework.util.KeyedHashSet.hash(KeyedHashSet.java:376)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findRequiredSource(BundleLoader.java:1103)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClassInternal(BundleLoader.java:440)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:399)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:387)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.springframework.ide.eclipse.beans.core.internal.model.BeansProject.hashCode(BeansProject.java:699)
at java.util.HashMap.put(Unknown Source)
at java.util.HashSet.add(Unknown Source)
at java.util.AbstractCollection.addAll(Unknown Source)
at java.util.HashSet.(Unknown Source)
at org.springframework.ide.eclipse.beans.core.internal.model.BeansModel.getProjects(BeansModel.java:194)
at org.springframework.ide.eclipse.beans.core.internal.model.BeansModel.getConfig(BeansModel.java:215)
at org.springframework.ide.eclipse.beans.core.BeansCoreUtils.isBeansConfig(BeansCoreUtils.java:43)
at org.springframework.ide.eclipse.beans.core.internal.model.BeansModelPropertyTester.test(BeansModelPropertyTester.java:39)
at org.eclipse.core.internal.expressions.Property.test(Property.java:58)
at org.eclipse.core.internal.expressions.TestExpression.evaluate(TestExpression.java:99)
at org.eclipse.core.internal.expressions.CompositeExpression.evaluateAnd(CompositeExpression.java:53)
at org.eclipse.core.internal.expressions.AndExpression.evaluate(AndExpression.java:29)
at org.eclipse.core.internal.expressions.CompositeExpression.evaluateOr(CompositeExpression.java:68)
at org.eclipse.ui.internal.navigator.CustomAndExpression.evaluate(CustomAndExpression.java:70)
at org.eclipse.ui.internal.navigator.extensions.NavigatorContentDescriptor.isPossibleChild(NavigatorContentDescriptor.java:370)
at org.eclipse.ui.internal.navigator.extensions.NavigatorContentDescriptorManager.findDescriptorsForPossibleChild(NavigatorContentDescriptorManager.java:266)
at org.eclipse.ui.internal.navigator.NavigatorContentService.findDescriptorsWithPossibleChild(NavigatorContentService.java:773)
at org.eclipse.ui.internal.navigator.NavigatorContentService.findOverrideableContentExtensionsForPossibleChild(NavigatorContentService.java:534)
at org.eclipse.ui.internal.navigator.NavigatorPipelineService.interceptUpdate(NavigatorPipelineService.java:306)
at org.eclipse.jface.viewers.StructuredViewer.update(StructuredViewer.java:1908)
at org.eclipse.jface.viewers.ContentViewer$1.labelProviderChanged(ContentViewer.java:97)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.viewers.BaseLabelProvider.fireLabelProviderChanged(BaseLabelProvider.java:72)
at org.eclipse.ui.internal.decorators.DecoratorManager.fireListener(DecoratorManager.java:428)
at org.eclipse.ui.internal.decorators.DecorationScheduler$3.runInUIThread(DecorationScheduler.java:533)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:133)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3800)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2384)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2348)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2200)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:386)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)

Users with the same issue

You are the first who have seen this exception.

Write tip

Know the solutions? Share your knowledge to help other developers to debug faster.