fMapToCompoundElement.put(key, fragment);
fMapToPackageFragments.put(key, fragment);
	protected void addFragmentsToMap(IPackageFragment[] children) {		//this is important because it clears all compoundelements out of the map		for (int i= 0; i < children.length; i++) {			IPackageFragment fragment= children[i];			String key= getKey(fragment);			fMapToCompoundElement.put(key, fragment);		}		}