org.eclipse.wst.xml.core.internal.document.StructuredDocumentRegionManagementException: IStructuredDocumentRegion management failed.
	at org.eclipse.wst.xml.core.internal.document.XMLModelParser.removeStructuredDocumentRegion(XMLModelParser.java:2265)
	at org.eclipse.wst.xml.core.internal.document.XMLModelParser.removeStructuredDocumentRegion(XMLModelParser.java:2288)
	at org.eclipse.wst.xml.core.internal.document.XMLModelParser.replaceStructuredDocumentRegions(XMLModelParser.java:2339)
	at org.eclipse.wst.xml.core.internal.document.DOMModelImpl.nodesReplaced(DOMModelImpl.java:737)
	at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument._fireEvent(BasicStructuredDocument.java:600)
	at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.fireStructuredDocumentEvent(BasicStructuredDocument.java:1198)
	at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.internalReplaceText(BasicStructuredDocument.java:1979)
	at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.replaceText(BasicStructuredDocument.java:2423)
	at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.replaceText(BasicStructuredDocument.java:2408)
	at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.access$2(JobSafeStructuredDocument.java:1)
	at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument$3.run(JobSafeStructuredDocument.java:141)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.wst.sse.ui.EditorExecutionContext.execute(EditorExecutionContext.java:149)
	at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.replaceText(JobSafeStructuredDocument.java:144)
	at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.replace(BasicStructuredDocument.java:2368)
	at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.access$0(JobSafeStructuredDocument.java:1)
	at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument$1.run(JobSafeStructuredDocument.java:103)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.wst.sse.ui.EditorExecutionContext.execute(EditorExecutionContext.java:149)
	at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.replace(JobSafeStructuredDocument.java:106)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.dnd.MobilePaletteInsertHelper.writeBuffer(MobilePaletteInsertHelper.java:124)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.dnd.MobilePaletteInsertHelper.insertNode(MobilePaletteInsertHelper.java:150)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.dnd.MobilePaletteInsertHelper.insertJsCss(MobilePaletteInsertHelper.java:381)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.dnd.MobilePaletteInsertHelper.modify(MobilePaletteInsertHelper.java:103)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.dnd.MobilePaletteInsertHelper.isMobile(MobilePaletteInsertHelper.java:86)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.dnd.JSPPaletteInsertHelper.modify(JSPPaletteInsertHelper.java:45)
	at org.jboss.tools.common.model.ui.views.palette.PaletteInsertHelper.insertIntoEditor(PaletteInsertHelper.java:121)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.dnd.FileDropCommand.run(FileDropCommand.java:67)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2333)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2315)
	at org.jboss.tools.common.model.ui.editors.dnd.DefaultDropCommand.execute(DefaultDropCommand.java:133)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.dnd.PaletteDropCommand.execute(PaletteDropCommand.java:117)
	at org.jboss.tools.jst.web.ui.palette.html.wizard.AbstractNewHTMLWidgetWizard.doPerformFinish(AbstractNewHTMLWidgetWizard.java:94)
	at org.jboss.tools.jst.web.ui.palette.html.jquery.wizard.NewJQueryWidgetWizard.doPerformFinish(NewJQueryWidgetWizard.java:106)
	at org.jboss.tools.jst.web.ui.palette.html.wizard.AbstractNewHTMLWidgetWizard$1.run(AbstractNewHTMLWidgetWizard.java:78)
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:465)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:373)
	at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:1055)
	at org.jboss.tools.jst.web.ui.palette.html.wizard.AbstractNewHTMLWidgetWizard.performFinish(AbstractNewHTMLWidgetWizard.java:82)
	at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:851)
	at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:437)
	at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:633)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4423)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1388)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3771)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3391)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:827)
	at org.eclipse.jface.window.Window.open(Window.java:803)
	at org.jboss.tools.common.model.ui.editors.dnd.DefaultDropCommand.execute(DefaultDropCommand.java:110)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPTextEditor$3.run(JSPTextEditor.java:740)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPTextEditor.runDropCommand(JSPTextEditor.java:759)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPMultiPageEditor.runDropCommand(JSPMultiPageEditor.java:864)
	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:622)
	at org.jboss.tools.common.model.ui.views.palette.PaletteCreator.dropIntoEditor(PaletteCreator.java:187)
	at org.jboss.tools.common.model.ui.views.palette.PaletteCreator.insertIntoEditor(PaletteCreator.java:141)
	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.PalettePageImpl.insertIntoEditor(PalettePageImpl.java:128)
	at org.jboss.tools.jst.web.ui.palette.PaletteViewer.insertIntoEditor(PaletteViewer.java:72)
	at org.jboss.tools.jst.web.ui.palette.PaletteViewer.setActiveTool(PaletteViewer.java:67)
	at org.jboss.tools.jst.web.ui.palette.xpl.MobileToolEntryEditPart$2.actionPerformed(MobileToolEntryEditPart.java:393)
	at org.eclipse.draw2d.Clickable.fireActionPerformed(Clickable.java:206)
	at org.eclipse.draw2d.Clickable$1.actionPerformed(Clickable.java:175)
	at org.eclipse.draw2d.ButtonModel.fireActionPerformed(ButtonModel.java:140)
	at org.eclipse.draw2d.ToggleModel.fireActionPerformed(ToggleModel.java:27)
	at org.eclipse.draw2d.ButtonModel$DefaultFiringBehavior.released(ButtonModel.java:506)
	at org.eclipse.draw2d.ButtonModel.fireReleased(ButtonModel.java:179)
	at org.eclipse.draw2d.ButtonModel.setPressed(ButtonModel.java:466)
	at org.jboss.tools.jst.web.ui.palette.xpl.MobileToolEntryEditPart$GTKToggleButtonTracker.handleButtonUp(MobileToolEntryEditPart.java:142)
	at org.eclipse.gef.tools.AbstractTool.mouseUp(AbstractTool.java:1200)
	at org.eclipse.gef.tools.SelectionTool.mouseUp(SelectionTool.java:574)
	at org.eclipse.gef.EditDomain.mouseUp(EditDomain.java:301)
	at org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchMouseReleased(DomainEventDispatcher.java:380)
	at org.eclipse.draw2d.LightweightSystem$EventHandler.mouseUp(LightweightSystem.java:548)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:220)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4423)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1388)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3771)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3391)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1122)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1006)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:146)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:615)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:566)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:125)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:109)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:80)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:372)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:226)
	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:622)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1426)