Bug 109562 [code manipulation] "Sort Members" reorders the enum constants in enums.
Irrespective of the settings of preferences controlling Sort Members, it should not reorder enum constants because their order has semantic significance.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/MembersOrderPreferencePage.java
public MemberSortLabelProvider() {
		}
		
		/*
		 * @see org.eclipse.jface.viewers.ILabelProvider#getText(Object)
		 */
		public String getText(Object element) {
			if (element instanceof String) {
				String s= (String) element;
				if (s.equals(FIELDS)) {
					return PreferencesMessages.MembersOrderPreferencePage_fields_label; 
				} else if (s.equals(METHODS)) {
					return PreferencesMessages.MembersOrderPreferencePage_methods_label;