java.lang.NullPointerException
        at org.jboss.tools.jst.web.kb.internal.FaceletPageContextImpl.getExternalVars(FaceletPageContextImpl.java:33)
        at org.jboss.tools.common.el.core.resolver.ELContextImpl.getVars(ELContextImpl.java:87)
        at org.jboss.tools.common.el.core.ca.AbstractELCompletionEngine.getProposals(AbstractELCompletionEngine.java:135)
        at org.jboss.tools.jst.web.kb.PageProcessor.getProposals(PageProcessor.java:164)
        at org.jboss.tools.jst.web.kb.PageProcessor.getProposals(PageProcessor.java:61)
        at org.jboss.tools.jst.jsp.contentassist.computers.XmlELCompletionProposalComputer.addAttributeValueELProposals(XmlELCompletionProposalComputer.java:199)
        at org.jboss.tools.jst.jsp.contentassist.computers.XmlELCompletionProposalComputer.addAttributeValueProposals(XmlELCompletionProposalComputer.java:162)
        at org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLCompletionProposalComputer.computeAttributeValueProposals(AbstractXMLCompletionProposalComputer.java:594)
        at org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLCompletionProposalComputer.computeCompletionProposals(AbstractXMLCompletionProposalComputer.java:399)
        at org.jboss.tools.jst.jsp.contentassist.computers.AbstractXmlCompletionProposalComputer.computeCompletionProposals(AbstractXmlCompletionProposalComputer.java:659)
        at org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLCompletionProposalComputer.computeCompletionProposals(AbstractXMLCompletionProposalComputer.java:169)
        at org.jboss.tools.jst.jsp.contentassist.computers.AbstractXmlCompletionProposalComputer.computeCompletionProposals(AbstractXmlCompletionProposalComputer.java:85)
        at org.jboss.tools.jst.jsp.contentassist.computers.FaceletsELCompletionProposalComputer.computeCompletionProposals(FaceletsELCompletionProposalComputer.java:74)
        at org.eclipse.wst.sse.ui.internal.contentassist.CompletionProposalComputerDescriptor.computeCompletionProposals(CompletionProposalComputerDescriptor.java:284)
        at org.eclipse.wst.sse.ui.internal.contentassist.CompletionProposalCategory.computeCompletionProposals(CompletionProposalCategory.java:294)
        at org.eclipse.wst.sse.ui.contentassist.StructuredContentAssistProcessor.collectProposals(StructuredContentAssistProcessor.java:475)
        at org.eclipse.wst.sse.ui.contentassist.StructuredContentAssistProcessor.computeCompletionProposals(StructuredContentAssistProcessor.java:254)
        at org.eclipse.wst.sse.ui.internal.contentassist.CompoundContentAssistProcessor.computeCompletionProposals(CompoundContentAssistProcessor.java:127)
        at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:1839)
        at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:566)
        at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$16(CompletionProposalPopup.java:563)
        at org.eclipse.jface.text.contentassist.CompletionProposalPopup$2.run(CompletionProposalPopup.java:498)
        at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
        at org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.java:492)
        at org.eclipse.jface.text.contentassist.ContentAssistant$2.run(ContentAssistant.java:378)
        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:3529)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3182)
        at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1029)
        at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:923)
        at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
        at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588)
        at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543)
        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:353)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
        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:629)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
        at org.eclipse.equinox.launcher.Main.main(Main.java:1414)