Bug 98327 [misc] File not saved on disk after "resave" editor context
N20060604-0010 - create project, package, A.java - open A.java in editor - go to OS explorer - delete A.java on disk - go back to workbench and activate editor observe: you get a dialog asking you whether you want to save the content - say yes observe: the dialog claims that the file exists. Strange, since I just deleted it. Say yes for override observe: the file doesn't end up on disk. You get an editor that the file doesn't exist.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitDocumentProvider.java
public ReverseMap() {
			}
			public Object get(Position position) {
				Entry entry;
				
				int length= fList.size();
				for (int i= fAnchor; i < length; i++) {
					entry= (Entry) fList.get(i);
					if (entry.fPosition.equals(position)) {
						fAnchor= i;
						return entry.fValue;
					}
				}
				
				for (int i= 0; i < fAnchor; i++) {
					entry= (Entry) fList.get(i);
					if (entry.fPosition.equals(position)) {
						fAnchor= i;
						return entry.fValue;
					}
				}
				return null;
			}
			private int getIndex(Position position) {
				Entry entry;
				int length= fList.size();
				for (int i= 0; i < length; i++) {
					entry= (Entry) fList.get(i);
					if (entry.fPosition.equals(position))
						return i;