Bug 100443 [open type] Open type dialog doesn't show compress JDK information anymore
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/dialogs/TypeInfoViewer.java
if (fSyncJob != null && stopSyncJob) {
			fSyncJob.stop();
			fSyncJob= null;
		}
		if (fSearchJob != null) {
			fSearchJob.stop();
			fSearchJob= null;
		}
	}
	
	public void setSearchPattern(String text) {
		stop(false, false);
		if (text.length() == 0 || "*".equals(text)) { 
			fTypeInfoFilter= null;
			reset();
		} else {
			fTypeInfoFilter= createTypeInfoFilter(text);
			scheduleSearchJob(isSyncJobRunning() ? HISTORY : FULL);
		}
	}
	
	public void setSearchScope(IJavaSearchScope scope, boolean refresh) {
		fSearchScope= scope;
		if (!refresh)
			return;
		stop(false, false);
		fLastCompletedFilter= null;
		fLastCompletedResult= null;
		if (fTypeInfoFilter == null) {
			reset();