Palette view closing cause an error

eclipse.buildId=10.0.0.GA-v20160615-1853-B33
java.version=1.8.0_101
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Framework arguments:  -product com.jboss.devstudio.core.product -pluginCustomization /home/tsedmik/devel/git/jbds-installer/rhdsis-10.nightly/resources/pluginCustomization.ini
Command-line arguments:  -os linux -ws gtk -arch x86_64 -product com.jboss.devstudio.core.product -pluginCustomization /home/tsedmik/devel/git/jbds-installer/rhdsis-10.nightly/resources/pluginCustomization.ini -data /home/tsedmik/devel/git/jbds-installer/rhdsis-10.nightly/target/tmp -clean

org.eclipse.ui
Error
Fri Oct 07 10:11:33 CEST 2016
Unhandled event loop exception

org.eclipse.swt.SWTError: No more handles
	at org.eclipse.swt.SWT.error(SWT.java:4559)
	at org.eclipse.swt.SWT.error(SWT.java:4448)
	at org.eclipse.swt.SWT.error(SWT.java:4419)
	at org.eclipse.swt.browser.Browser.<init>(Browser.java:103)
	at org.fusesource.ide.camel.editor.properties.DocumentationSection.createControls(DocumentationSection.java:241)
	at org.eclipse.ui.views.properties.tabbed.TabContents$1.run(TabContents.java:109)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173)
	at org.eclipse.ui.views.properties.tabbed.TabContents.createControls(TabContents.java:112)
	at org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage$SelectionChangedListener.selectionChanged(TabbedPropertySheetPage.java:205)
	at org.eclipse.jface.viewers.Viewer$1.run(Viewer.java:158)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173)
	at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:155)
	at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2191)
	at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1229)
	at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1258)
	at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:242)
	at org.eclipse.jface.util.OpenStrategy.access$4(OpenStrategy.java:236)
	at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:405)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5219)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1340)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1366)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1349)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1134)
	at org.eclipse.ui.internal.views.properties.tabbed.view.TabbedPropertyList.select(TabbedPropertyList.java:864)
	at org.eclipse.ui.internal.views.properties.tabbed.view.TabbedPropertyViewer.setSelectionToWidget(TabbedPropertyViewer.java:122)
	at org.eclipse.jface.viewers.StructuredViewer.setSelectionToWidget(StructuredViewer.java:1770)
	at org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1726)
	at org.eclipse.jface.viewers.Viewer.setSelection(Viewer.java:383)
	at org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage.setInput(TabbedPropertySheetPage.java:747)
	at org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage.selectionChanged(TabbedPropertySheetPage.java:555)
	at org.eclipse.ui.views.properties.PropertySheet.selectionChanged(PropertySheet.java:405)
	at org.eclipse.ui.internal.e4.compatibility.SelectionService.notifyListeners(SelectionService.java:259)
	at org.eclipse.ui.internal.e4.compatibility.SelectionService.notifyListeners(SelectionService.java:194)
	at org.eclipse.ui.internal.WorkbenchPage$E4PartListener.partActivated(WorkbenchPage.java:211)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$3.run(PartServiceImpl.java:250)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.firePartActivated(PartServiceImpl.java:247)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:757)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:682)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:677)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.hidePart(PartServiceImpl.java:1345)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.hidePart(PartServiceImpl.java:1284)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.closePart(StackRenderer.java:1289)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.access$2(StackRenderer.java:1271)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer$7.close(StackRenderer.java:1156)
	at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1930)
	at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:338)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5219)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1340)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4553)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4143)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1121)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1022)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:150)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:687)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:604)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:138)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:610)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1519)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1492)