Bug 52541 [SWT Examples] CoolBar Buttons with a dropdown menu do not behave correctly
examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/CoolBarTab.java
item.setToolTipText ("SWT.RADIO");
		radioItem = new CoolItem (coolBar, itemStyle);
		radioItem.setControl (toolBar);
		Point radioSize = toolBar.computeSize(SWT.DEFAULT, SWT.DEFAULT);
		radioSize = radioItem.computeSize(radioSize.x, radioSize.y);
		radioItem.setSize(radioSize);
		radioItem.setMinimumSize(item.getWidth(), radioSize.y);
        radioItem.addSelectionListener (new CoolItemSelectionListener());
		
		
		toolBar = new ToolBar (coolBar, toolBarStyle);
		item = new ToolItem (toolBar, SWT.CHECK);
		item.setImage (instance.images[ControlExample.ciClosedFolder]);
		item.setToolTipText ("SWT.CHECK");
		item = new ToolItem (toolBar, SWT.CHECK);
		item.setImage (instance.images[ControlExample.ciTarget]);
		item.setToolTipText ("SWT.CHECK");
		item = new ToolItem (toolBar, SWT.CHECK);
		item.setImage (instance.images[ControlExample.ciOpenFolder]);
		item.setToolTipText ("SWT.CHECK");
		item = new ToolItem (toolBar, SWT.CHECK);
		item.setImage (instance.images[ControlExample.ciTarget]);
		item.setToolTipText ("SWT.CHECK");
		checkItem = new CoolItem (coolBar, itemStyle);
		checkItem.setControl (toolBar);
		Point checkSize = toolBar.computeSize(SWT.DEFAULT, SWT.DEFAULT);
		checkSize = checkItem.computeSize(checkSize.x, checkSize.y);
		checkItem.setSize(checkSize);
		checkItem.setMinimumSize(item.getWidth(), checkSize.y);
        checkItem.addSelectionListener (new CoolItemSelectionListener());