remove NPE if JSDT not setup on project + cont. completion invoked.

diff --git a/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/contentassist/JSDTContentAssistant.java b/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/contentassist/JSDTContentAssistant.java
index b33358e..2eac279 100644
--- a/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/contentassist/JSDTContentAssistant.java
+++ b/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/contentassist/JSDTContentAssistant.java

@@ -48,6 +48,8 @@
 		/* add end script tag if needed */
 
 		/* --------- Content Assistant --------- */
+		if(theCollector==null) return new ICompletionProposal[0];
+		
 		getContentAssistProcessor().setProposalCollector(theCollector);
 		completionProposals = getContentAssistProcessor().computeCompletionProposals(viewer, documentPosition);
 		proposals.addAll(Arrays.asList(completionProposals));
@@ -98,6 +100,7 @@
 	
 	protected JSDTProposalCollector getProposalCollector(ITextViewer viewer, int offset) {
 		IJsTranslation tran = getJSPTranslation(viewer, offset);
+		if(tran==null) return null;
 		return new JSDTProposalCollector(tran);
 	}
 	

diff --git a/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/contentassist/JSDTHtmlCompletionProcessor.java b/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/contentassist/JSDTHtmlCompletionProcessor.java
index b8742fa..61fe161 100644
--- a/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/contentassist/JSDTHtmlCompletionProcessor.java
+++ b/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/contentassist/JSDTHtmlCompletionProcessor.java

@@ -48,6 +48,8 @@
 		/* add </script if necisary */
 	
 		IJsTranslation tran = getJSPTranslation(viewer);
+		if(tran==null) return null;
+		
 		int missingAtOffset = tran.getMissingTagStart();
 		
 		if(offset>=missingAtOffset&& missingAtOffset>-1) {

diff --git a/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/contentassist/JSDTProposalCollector.java b/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/contentassist/JSDTProposalCollector.java
index 51aa534..0027576 100644
--- a/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/contentassist/JSDTProposalCollector.java
+++ b/bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/contentassist/JSDTProposalCollector.java

@@ -47,7 +47,7 @@
 // return fGeneratedFunctionNames;
 // }
 	public JSDTProposalCollector(IJsTranslation translation) {
-		super(translation.getCompilationUnit());
+		super(translation!=null?translation.getCompilationUnit():null);
 		if (translation == null) {
 			throw new IllegalArgumentException("JSPTranslation cannot be null"); //$NON-NLS-1$
 		}