error in error log on MBean stuff

java.lang.RuntimeException: WARNING: Prevented recursive attempt to activate part org.eclipse.ui.views.PropertySheet while still in the middle of activating part com.fusesource.ide.jmx.ui.internal.views.navigator.MBeanExplorer
at org.eclipse.ui.internal.WorkbenchPage.setActivePart(WorkbenchPage.java:3586)
at org.eclipse.ui.internal.WorkbenchPage.requestActivation(WorkbenchPage.java:3159)
at org.eclipse.ui.internal.PartPane.requestActivation(PartPane.java:279)
at org.eclipse.ui.internal.PartPane.handleEvent(PartPane.java:237)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4128)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1457)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1480)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1461)
at org.eclipse.swt.widgets.Shell.setActiveControl(Shell.java:1547)
at org.eclipse.swt.widgets.Control.sendFocusEvent(Control.java:3299)
at org.eclipse.swt.widgets.Display.checkFocus(Display.java:646)
at org.eclipse.swt.widgets.Shell.makeFirstResponder(Shell.java:1234)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:5581)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSend_bool(Native Method)
at org.eclipse.swt.internal.cocoa.NSWindow.makeFirstResponder(NSWindow.java:194)
at org.eclipse.swt.widgets.Control.forceFocus(Control.java:1445)
at org.eclipse.swt.widgets.Control.forceFocus(Control.java:1425)
at org.eclipse.swt.widgets.Control.setFocus(Control.java:3704)
at org.eclipse.swt.widgets.Composite.setFocus(Composite.java:1032)
at org.eclipse.swt.widgets.Composite.setFocus(Composite.java:1030)
at org.eclipse.swt.widgets.Control.fixFocus(Control.java:1351)
at org.eclipse.swt.widgets.Control.setVisible(Control.java:4201)
at org.eclipse.ui.part.PageBook.showPage(PageBook.java:111)
at org.eclipse.ui.part.PageBookView.showPageRec(PageBookView.java:979)
at org.eclipse.ui.part.PageBookView.partActivated(PageBookView.java:756)
at org.eclipse.ui.views.properties.PropertySheet.partActivated(PropertySheet.java:323)
at org.eclipse.ui.part.PageBookView$4.partActivated(PageBookView.java:1014)
at org.eclipse.ui.internal.PartListenerList2$1.run(PartListenerList2.java:70)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.runtime.Platform.run(Platform.java:888)
at org.eclipse.ui.internal.PartListenerList2.fireEvent(PartListenerList2.java:55)
at org.eclipse.ui.internal.PartListenerList2.firePartActivated(PartListenerList2.java:68)
at org.eclipse.ui.internal.PartService.firePartActivated(PartService.java:192)
at org.eclipse.ui.internal.PartService.setActivePart(PartService.java:306)
at org.eclipse.ui.internal.WorkbenchPagePartList.fireActivePartChanged(WorkbenchPagePartList.java:57)
at org.eclipse.ui.internal.PartList.setActivePart(PartList.java:136)
at org.eclipse.ui.internal.WorkbenchPage.setActivePart(WorkbenchPage.java:3636)
at org.eclipse.ui.internal.WorkbenchPage.requestActivation(WorkbenchPage.java:3159)
at org.eclipse.ui.internal.PartPane.requestActivation(PartPane.java:279)
at org.eclipse.ui.internal.PartPane.handleEvent(PartPane.java:237)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4128)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1457)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1480)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1461)
at org.eclipse.swt.widgets.Shell.setActiveControl(Shell.java:1547)
at org.eclipse.swt.widgets.Control.sendMouseEvent(Control.java:3363)
at org.eclipse.swt.widgets.Control.mouseEvent(Control.java:2516)
at org.eclipse.swt.widgets.Composite.mouseEvent(Composite.java:879)
at org.eclipse.swt.widgets.Control.mouseDown(Control.java:2524)
at org.eclipse.swt.widgets.Tree.mouseDown(Tree.java:2007)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:5471)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:220)
at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2095)
at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2253)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:5535)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:4989)
at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5138)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3610)
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:123)
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:344)
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:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)