Unable to create web service client in java

When i try to create a client for the WSDL http://infml00871:82/MapperWebService/Mapper?wsdl with JBossAS 4.2 server configuration and JBossWS as server runtime. I get the following error as I click Finish button for Client creation: IWAB0014E Unexpected exception occurred.

  java.lang.NullPointerException
  at org.jboss.tools.ws.creation.core.commands.ClientSampleCreationCommand.findJavaUnitsByAnnotation(ClientSampleCreationCommand.java:310)
  at org.jboss.tools.ws.creation.core.commands.ClientSampleCreationCommand.execute(ClientSampleCreationCommand.java:80)
  at org.eclipse.wst.command.internal.env.core.fragment.CommandFragmentEngine.runCommand(CommandFragmentEngine.java:419)
  at org.eclipse.wst.command.internal.env.core.fragment.CommandFragmentEngine.visitTop(CommandFragmentEngine.java:359)
  at org.eclipse.wst.command.internal.env.core.fragment.CommandFragmentEngine.moveForwardToNextStop(CommandFragmentEngine.java:254)
  at org.eclipse.wst.command.internal.env.ui.widgets.SimpleCommandEngineManager$6.run(SimpleCommandEngineManager.java:294)
  at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
  at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
  at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:944)
  at org.eclipse.wst.command.internal.env.ui.widgets.SimpleCommandEngineManager.runForwardToNextStop(SimpleCommandEngineManager.java:264)
  at org.eclipse.wst.command.internal.env.ui.widgets.WizardPageManager.runForwardToNextStop(WizardPageManager.java:91)
  at org.eclipse.wst.command.internal.env.ui.widgets.WizardPageManager.performFinish(WizardPageManager.java:262)
  at org.eclipse.wst.command.internal.env.ui.widgets.DynamicWizard.performFinish(DynamicWizard.java:382)
  at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:752)
  at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:373)
  at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)
  at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:228)
  at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
  at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
  at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3910)
  at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3503)
  at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
  at org.eclipse.jface.window.Window.open(Window.java:801)
  at org.eclipse.ui.internal.handlers.WizardHandler$New.executeHandler(WizardHandler.java:253)
  at org.eclipse.ui.internal.handlers.WizardHandler.execute(WizardHandler.java:273)
  at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:294)
  at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
  at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
  at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
  at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241)
  at org.eclipse.ui.internal.actions.CommandAction.runWithEvent(CommandAction.java:157)
  at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
  at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
  at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
  at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
  at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
  at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3910)
  at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3503)
  at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
  at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
  at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
  at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
  at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
  at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
  at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
  at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
  at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
  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:368)
  at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
  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:559)
  at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
  at org.eclipse.equinox.launcher.Main.run(Main.java:1311)

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