Bug 51665 [CoolBar] Extra flashiness when switching between perspectives
build I20040210-0800 In same window, - open a java perspective - open several java editors - open debug perspective - switch back and forth between java and debug perspectives The coolbar is noticeably flashier than it was in M6.
bundles/org.eclipse.jface/src/org/eclipse/jface/action/CoolBarManager.java
}
    /**
     * Creates a cool bar manager with the given SWT style. Calling <code>createControl</code>
     * will create the cool bar control.
     * 
     * @param style
     *            the cool bar item style; see
     *            {@link org.eclipse.swt.widgets.CoolBar CoolBar}for for valid
     *            style bits
     */
    public CoolBarManager(int style) {
        itemStyle = style;
    }
    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.action.ICoolBarManager#add(org.eclipse.jface.action.IToolBarManager)
     */
    public void add(IToolBarManager toolBarManager) {
        Assert.isNotNull(toolBarManager);
        super.add(new ToolBarContributionItem(toolBarManager));
    }
    /**
     * Colapses consecutive separators and removes a separator from the
     * beginning and end of the list.
     * 
     * @param contributionList
     *            the list of contributions
     */
    private ArrayList adjustContributionList(ArrayList contributionList) {