Bug 49826 Type filter ignores some filters
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/TypeFilterPreferencePage.java
private static final String PREF_FILTER_ENABLED= PreferenceConstants.TYPEFILTER_ENABLED;
	private static final String PREF_FILTER_DISABLED= PreferenceConstants.TYPEFILTER_DISABLED;
	
	private static String[] unpackOrderList(String str) {
		StringTokenizer tok= new StringTokenizer(str, ";"); 
		int nTokens= tok.countTokens();
		String[] res= new String[nTokens];
		for (int i= 0; i < nTokens; i++) {
			res[i]= tok.nextToken();
		}
		return res;
	}
	
	private static String packOrderList(List orderList) {
		StringBuffer buf= new StringBuffer();
		for (int i= 0; i < orderList.size(); i++) {
			buf.append((String) orderList.get(i));
			buf.append(';');
		}
		return buf.toString();
	}	
		
	private class TypeFilterAdapter implements IListAdapter, IDialogFieldListener {