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

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This exception has no message.
java.lang.NullPointerException:
at org.eclipse.jst.ws.internal.axis.consumption.ui.util.ClasspathUtils.getUtilityJarClasspath(ClasspathUtils.java:144)
at org.eclipse.jst.ws.internal.axis.consumption.ui.util.ClasspathUtils.getClasspathForJavaProject(ClasspathUtils.java:224)
at org.eclipse.jst.ws.internal.axis.consumption.ui.util.ClasspathUtils.getClasspath(ClasspathUtils.java:124)
at org.eclipse.jst.ws.internal.axis.consumption.ui.util.ClasspathUtils.classpathEntry2String(ClasspathUtils.java:257)
at org.eclipse.jst.ws.internal.axis.consumption.ui.util.ClasspathUtils.getClasspathForJavaProject(ClasspathUtils.java:209)
at org.eclipse.jst.ws.internal.axis.consumption.ui.util.ClasspathUtils.getClasspath(ClasspathUtils.java:124)
at org.eclipse.jst.ws.internal.axis.consumption.ui.util.ClasspathUtils.classpathEntry2String(ClasspathUtils.java:257)
at org.eclipse.jst.ws.internal.axis.consumption.ui.util.ClasspathUtils.getClasspathForJavaProject(ClasspathUtils.java:209)
at org.eclipse.jst.ws.internal.axis.consumption.ui.util.ClasspathUtils.getClasspath(ClasspathUtils.java:124)
at org.eclipse.jst.ws.internal.axis.consumption.ui.util.ClasspathUtils.getClasspathString(ClasspathUtils.java:65)
at org.eclipse.jst.ws.internal.axis.creation.ui.task.DefaultsForServerJavaWSDLCommand.execute(DefaultsForServerJavaWSDLCommand.java:91)
at org.eclipse.wst.command.internal.env.core.fragment.CommandFragmentEngine.runCommand(CommandFragmentEngine.java:348)
at org.eclipse.wst.command.internal.env.core.fragment.CommandFragmentEngine.visitTop(CommandFragmentEngine.java:312)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:346)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:291)
at org.eclipse.wst.command.internal.env.ui.widgets.SimpleCommandEngineManager.runForwardToNextStop(SimpleCommandEngineManager.java:175)
at org.eclipse.wst.command.internal.env.ui.widgets.WizardPageManager.runForwardToNextStop(WizardPageManager.java:78)
at org.eclipse.wst.command.internal.env.ui.widgets.WizardPageManager.getNextPage(WizardPageManager.java:124)
at org.eclipse.jface.wizard.WizardDialog.nextPressed(WizardDialog.java:747)
at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:345)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:90)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3080)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:809)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:538)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3080)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
at org.eclipse.core.launcher.Main.run(Main.java:973)

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