### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core.tests.model
Index: src/org/eclipse/jdt/core/tests/model/ResolveTests.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/ResolveTests.java,v
retrieving revision 1.89
diff -u -r1.89 ResolveTests.java
--- src/org/eclipse/jdt/core/tests/model/ResolveTests.java	27 Jun 2008 16:02:40 -0000	1.89
+++ src/org/eclipse/jdt/core/tests/model/ResolveTests.java	29 Oct 2008 15:46:42 -0000
@@ -414,6 +414,25 @@
 	);
 }
 /**
+ * https://bugs.eclipse.org/bugs/show_bug.cgi?id=252481
+ */
+public void testEmptyCU1() throws JavaModelException {
+	this.workingCopies = new ICompilationUnit[1];
+	this.workingCopies[0] = getWorkingCopy(
+		"/Resolve/src/Test.java",
+		"//this CU must contain only an unknown type name" +
+		"Unknown\n" +
+		"\n"
+	);
+	
+	IJavaElement[] elements = codeSelect(this.workingCopies[0], "Unknown", "Unknown");
+	assertElementsEqual(
+		"Unexpected elements",
+		"",
+		elements
+	);
+}
+/**
  * Resolve empty selection
  */
 public void testEmptySelection() throws JavaModelException {
#P org.eclipse.jdt.core
Index: codeassist/org/eclipse/jdt/internal/codeassist/SelectionEngine.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/codeassist/org/eclipse/jdt/internal/codeassist/SelectionEngine.java,v
retrieving revision 1.150
diff -u -r1.150 SelectionEngine.java
--- codeassist/org/eclipse/jdt/internal/codeassist/SelectionEngine.java	9 Oct 2008 13:15:22 -0000	1.150
+++ codeassist/org/eclipse/jdt/internal/codeassist/SelectionEngine.java	29 Oct 2008 15:46:51 -0000
@@ -730,7 +730,11 @@
 			
 			IJavaSearchScope scope = BasicSearchEngine.createWorkspaceScope();
 			
-			SelectionTypeNameMatchRequestorWrapper requestorWrapper = new SelectionTypeNameMatchRequestorWrapper(typeNameMatchRequestor, scope, this.unitScope.referenceContext.imports);
+			SelectionTypeNameMatchRequestorWrapper requestorWrapper =
+				new SelectionTypeNameMatchRequestorWrapper(
+						typeNameMatchRequestor, 
+						scope,
+						this.unitScope == null ? null : this.unitScope.referenceContext.imports);
 			
 			org.eclipse.jdt.core.ICompilationUnit[] workingCopies = this.owner == null ? null : JavaModelManager.getJavaModelManager().getWorkingCopies(this.owner, true/*add primary WCs*/);