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java.lang.ArrayIndexOutOfBoundsException: -1	at java.util.ArrayList.get(ArrayList.java:324)	at org.eclipse.ui.internal.WorkbenchPage$ActivationList.bringToTop(WorkbenchPage.java:3372)	at org.eclipse.ui.internal.WorkbenchPage.internalBringToTop(WorkbenchPage.java:705)	at org.eclipse.ui.internal.WorkbenchPage.activate(WorkbenchPage.java:530)	at com.m7.wide.eclipse.jstudio.A.requestFocus(Unknown Source)	at com.m7.wide.doceditor.AbstractEditor.requestFocus(Unknown Source)	at com.m7.wide.doceditor.AbstractPane.requestFocus(Unknown Source)	at com.m7.wide.doceditor.flow.FlowDesignPane.requestFocus(Unknown Source)	at com.m7.wide.doceditor.CompoundPane.requestFocus(Unknown Source)	at com.m7.wide.doceditor.CompoundPane.setHidden(Unknown Source)	at com.m7.wide.doceditor.MultiPaneEditor.activePaneChanged(Unknown Source)	at com.m7.wide.eclipse.jstudio.PaneEditorPart.activate(Unknown Source)	at com.m7.wide.eclipse.jstudio.DynamicMultiPageEditor.A(Unknown Source)	at com.m7.wide.eclipse.jstudio.DynamicMultiPageEditor.pageChange(Unknown Source)	at com.m7.wide.eclipse.jstudio.DynamicMultiPageEditor.createPages(Unknown Source)	at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:241)	at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:577)	at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:357)	at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:559)	at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:266)	at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:126)	at org.eclipse.ui.internal.presentations.R21EditorStackPresentation.selectPart(R21EditorStackPresentation.java:709)	at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1064)	at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1013)	at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1222)	at org.eclipse.ui.internal.PartStack.add(PartStack.java:406)	at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:109)	at org.eclipse.ui.internal.EditorSashContainer.addEditor(EditorSashContainer.java:60)	at org.eclipse.ui.internal.EditorAreaHelper.addToLayout(EditorAreaHelper.java:212)	at org.eclipse.ui.internal.EditorAreaHelper.addEditor(EditorAreaHelper.java:202)	at org.eclipse.ui.internal.EditorManager.createEditorTab(EditorManager.java:719)	at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:631)	at org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:594)	at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2254)	at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2185)	at org.eclipse.ui.internal.WorkbenchPage.access$8(WorkbenchPage.java:2177)	at org.eclipse.ui.internal.WorkbenchPage$9.run(WorkbenchPage.java:2163)	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2158)	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2140)	at org.eclipse.ui.ide.IDE.openEditor(IDE.java:371)	at org.eclipse.ui.ide.IDE.openEditor(IDE.java:334)	at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:248)	at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:128)	at org.eclipse.jdt.internal.ui.actions.OpenActionUtil.open(OpenActionUtil.java:49)	at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:169)	at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:153)	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:222)	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:198)	at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:299)	at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$4.open(PackageExplorerPart.java:806)	at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:741)	at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1029)	at org.eclipse.core.runtime.Platform.run(Platform.java:775)	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44)	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:148)	at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:739)	at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:968)	at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1067)	at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:243)	at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:238)	at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:277)	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:842)	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2921)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2554)	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1601)	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1565)	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:315)	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)	at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)	at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:230)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:371)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:160)	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:330)	at org.eclipse.core.launcher.Main.basicRun(Main.java:274)	at org.eclipse.core.launcher.Main.run(Main.java:977)	at org.eclipse.core.launcher.Main.eclipse_main(Main.java:952)	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 com.m7.installer.util.NitroxMain$1.run(NitroxMain.java:29)	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199)	at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234)	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)	at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)