ICompilationUnit cu= getCompilationUnit();
ICompilationUnit cu= (ICompilationUnit)element;
	public ICompilationUnit getCompilationUnit() {		IJavaElement element= JavaCore.create(getMarker().getResource());		if (element instanceof ICompilationUnit) {			ICompilationUnit cu= getCompilationUnit();			ICompilationUnit workingCopy= EditorUtility.getWorkingCopy(cu);			if (workingCopy != null) {				return workingCopy;			}			return cu;		}		return null;	}