private void initHelpSystem() { if (helpBroker != null && helpSet != null) { return; } helpSet = initHelpSet(); if (helpSet != null) { helpSet.setKeyData( HelpSet.implRegistry, HelpSet.helpBrokerClass, OnlineHelpBroker.class.getName()); helpBroker = (OnlineHelpBroker) helpSet.createHelpBroker(); } displayListener = new CSH.DisplayHelpFromSource(helpBroker); }