Bug 54468 Remove non-default-encoding-alert from CompilationUnitEditor
no longer necessary with new encoding support.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
* @param element	Java element
		 * @return Length of the given Java element
		 */
		private int getLength(IJavaElement element) {
			if (element instanceof ISourceReference) {
				ISourceReference sr= (ISourceReference) element;
				try {
					ISourceRange srcRange= sr.getSourceRange();
					if (srcRange != null)
						return srcRange.getLength();
				} catch (JavaModelException e) {
				}
			}
			return -1;	
		}
		
		/**
		 * Returns the updated java element for the old java element.
		 * 
		 * @param element Old Java element
		 * @return Updated Java element
		 */
		private IJavaElement findElement(IJavaElement element) {
			
			if (element == null)
				return null;
			
			IWorkingCopyManager manager= JavaPlugin.getDefault().getWorkingCopyManager();
			ICompilationUnit unit= manager.getWorkingCopy(getEditorInput());