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Comparison method violates its general contract!
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Comparison method violates its general contract!
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java.lang.IllegalArgumentException: Comparison method violates its general contract!	at java.util.TimSort.mergeLo(TimSort.java:747)	at java.util.TimSort.mergeAt(TimSort.java:483)	at java.util.TimSort.mergeCollapse(TimSort.java:410)	at java.util.TimSort.sort(TimSort.java:214)	at java.util.TimSort.sort(TimSort.java:173)	at java.util.Arrays.sort(Arrays.java:659)	at org.eclipse.jface.viewers.ViewerComparator.sort(ViewerComparator.java:187)	at org.eclipse.ui.internal.progress.DetailedProgressViewer.add(DetailedProgressViewer.java:166)	at org.eclipse.ui.internal.progress.ProgressViewerContentProvider.add(ProgressViewerContentProvider.java:224)	at org.eclipse.ui.internal.progress.ProgressViewUpdater$1.runInUIThread(ProgressViewUpdater.java:285)	at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95)	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3563)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3212)	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)	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:352)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:601)	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:624)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:579)	at org.eclipse.equinox.launcher.Main.run(Main.java:1433)	at org.eclipse.equinox.launcher.Main.main(Main.java:1409)