Bug 5877 Rename package -> selection incorrect
1. select text in a .java file 2. rename the package of that file using the rename menu option 3. notice that the selection has moved Perhaps because selection index isn't updated when the .java file text changes to reflect the new package.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
public void customizeDocumentCommand(IDocument document, DocumentCommand command) {
			String text= command.text;
			if (text == null)
				return;
				
			int index= text.indexOf('\t');
			if (index > -1) {
				
				StringBuffer buffer= new StringBuffer();
				
				fLineTracker.set(command.text);
				int lines= fLineTracker.getNumberOfLines();
				
				try {
						
						for (int i= 0; i < lines; i++) {
							
							int offset= fLineTracker.getLineOffset(i);
							int endOffset= offset + fLineTracker.getLineLength(i);
							String line= text.substring(offset, endOffset);
							
							int position= 0;
							if (i == 0) {
								IRegion firstLine= document.getLineInformationOfOffset(command.offset);
								position= command.offset - firstLine.getOffset();	
							}
							
							int length= line.length();
							for (int j= 0; j < length; j++) {
								char c= line.charAt(j);