[170080] [content assist] null pointer exception in StyleElementAdapter
diff --git a/bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/internal/htmlcss/StyleElementAdapter.java b/bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/internal/htmlcss/StyleElementAdapter.java
index 94beee7..f26c904 100644
--- a/bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/internal/htmlcss/StyleElementAdapter.java
+++ b/bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/internal/htmlcss/StyleElementAdapter.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2004, 2009 IBM Corporation and others.
+ * Copyright (c) 2004, 2010 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -166,7 +166,9 @@
 				modelProvideAdapter.modelProvided(model);
 
 			// from createModel()
-			IStructuredDocument structuredDocument = model.getStructuredDocument();
+			IStructuredDocument structuredDocument = null;
+			if (model != null)
+				structuredDocument = model.getStructuredDocument();
 			if (structuredDocument == null)
 				return null;
 			structuredDocument.addDocumentChangedListener(this);