Bug 270146 [Mac] NSToolbar leak in CocoaUIEnhancer
bundles/org.eclipse.ui.cocoa/src/org/eclipse/ui/internal/cocoa/CocoaUIEnhancer.java
private static final long NSWindowToolbarButton = 3;
	
	Callback proc3Args;
	static final byte[] SWT_OBJECT = "SWT_OBJECT".getBytes(); 
	private void init() throws SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException, NoSuchFieldException {
		
		byte[] types = "*".getBytes(); 
		int size = C.PTR_SIZEOF, align = C.PTR_SIZEOF == 4 ? 2 : 3;
		Class clazz = CocoaUIEnhancer.class;
		proc3Args = new Callback(clazz, "actionProc", 3); 
		
		Method getAddress = Callback.class.getMethod("getAddress", new Class[0]);
		Object object = getAddress.invoke(proc3Args, null);
		long proc3 = convertToLong(object);
		if (proc3 == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS);
		
		Field field = OS.class.getField("class_NSObject");
		Object fieldObj = field.get(OS.class);
		object = invokeMethod(OS.class, "objc_allocateClassPair", new Object[] { fieldObj, "SWTCocoaEnhancerDelegate", wrapPointer(0) });
		long cls = convertToLong(object);
		
		invokeMethod(OS.class, "class_addIvar", new Object[] {
				wrapPointer(cls), SWT_OBJECT, wrapPointer(size),
				new Byte((byte) align), types });
		
		invokeMethod(
				OS.class,
				"class_addMethod", new Object[] { wrapPointer(cls), wrapPointer(sel_toolbarButtonClicked_), wrapPointer(proc3), "@:@" }); 
		invokeMethod(OS.class, "class_addMethod", new Object[] {
				wrapPointer(cls),