Bug 27075 ViewerSorter could maybe lazily initialize Collator
calling JavaElementSorter creates a lot of new objects (ViewerSorter calls Collator.getInstance() which is the culprit) so maybe fSorter could be initialized lazily
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/ListDialogField.java
selected.add(newElement);
				}
				fTable.refresh();
				selectElements(new StructuredSelection(selected));
			}
			dialogFieldChanged();
		} else {
			throw new IllegalArgumentException();
		}
	}	
	/**
	 * Adds an element at the end of the list.
	 */		
	public void addElement(Object element) {		
		if (fElements.contains(element)) {
			return;
		}
		fElements.add(element);
		if (fTable != null) {
			fTable.add(element);
		}
		dialogFieldChanged();
	}
	/**
	 * Adds elements at the end of the list.
	 */	
	public void addElements(List elements) {
		int nElements= elements.size();
		
		if (nElements > 0) {