Bug 40347 [misc] Renaming a project with an open editor fills log
I20030716+plugin-export 1) have a Java file open in the Java editor 2) rename the enclosing project -> exception in log but no stacktrace
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitDocumentProvider.java
return fCompilationUnit;
			}
		};
		
		/**
		 * Internal structure for mapping positions to some value. 
		 * The reason for this specific structure is that positions can
		 * change over time. Thus a lookup is based on value and not
		 * on hash value.
		 */
		protected static class ReverseMap {
			
			static class Entry {
				Position fPosition;
				Object fValue;
			};
			
			private List fList= new ArrayList(2);
			private int fAnchor= 0;
			
			public ReverseMap() {
			}
			
			public Object get(Position position) {
				
				Entry entry;
				
				
				int length= fList.size();
				for (int i= fAnchor; i < length; i++) {