Unable to create view: com.sun.corba.se.spi.orb.ORB

java.lang.NoClassDefFoundError: com.sun.corba.se.spi.orb.ORB
   at jp.go.aist.rtm.rtclink.corba.CorbaUtil.<clinit>(CorbaUtil.java:53)
   at java.lang.Class.initializeClass(libgcj.so.8rh)
   at jp.go.aist.rtm.rtclink.corba.NameServerAccesser.getNameServerRootContext(NameServerAccesser.java:63)
   at jp.go.aist.rtm.rtclink.manager.NameServerManager.addNameServer(NameServerManager.java:50)
   at jp.go.aist.rtm.rtclink.ui.views.nameserviceview.NameServiceView.init(NameServiceView.java:215)
   at org.eclipse.ui.part.ViewPart.init(ViewPart.java:122)
   at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:305)
   at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:197)
   at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:566)
   at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:290)
   at org.eclipse.ui.internal.ViewPane.setVisible(ViewPane.java:525)
   at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:140)
   at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:268)
   at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
   at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:394)
   at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1144)
   at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1097)
   at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1311)
   at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:601)
   at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:532)
   at org.eclipse.ui.internal.PartSashContainer.createControl(PartSashContainer.java:562)
   at org.eclipse.ui.internal.PerspectiveHelper.activate(PerspectiveHelper.java:244)
   at org.eclipse.ui.internal.Perspective.onActivate(Perspective.java:815)
   at org.eclipse.ui.internal.WorkbenchPage.setPerspective(WorkbenchPage.java:3284)
   at org.eclipse.ui.internal.WorkbenchPage.busySetPerspective(WorkbenchPage.java:957)
   at org.eclipse.ui.internal.WorkbenchPage.access$12(WorkbenchPage.java:941)
   at org.eclipse.ui.internal.WorkbenchPage$12.run(WorkbenchPage.java:3408)
   at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
   at org.eclipse.ui.internal.WorkbenchPage.setPerspective(WorkbenchPage.java:3406)
   at org.eclipse.ui.internal.ChangeToPerspectiveMenu.run(ChangeToPerspectiveMenu.java:92)
   at org.eclipse.ui.actions.PerspectiveMenu.run(PerspectiveMenu.java:336)
   at org.eclipse.ui.actions.PerspectiveMenu.runOther(PerspectiveMenu.java:352)
   at org.eclipse.ui.actions.PerspectiveMenu$3.runWithEvent(PerspectiveMenu.java:108)
   at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:539)
   at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488)
   at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:400)
   at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
   at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1085)
   at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3180)
   at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2856)
   at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1930)
   at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1894)
   at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:422)
   at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
   at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:95)
   at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
   at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
   at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
   at java.lang.reflect.Method.invoke(libgcj.so.8rh)
   at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
   at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
   at org.eclipse.core.launcher.Main.run(Main.java:977)
   at org.eclipse.core.launcher.Main.main(Main.java:952)