StickAnywhere.java

    /**
     * might avoid growing heap, swapping heap, etc. and likely to constantly trigger gc in gwtc.
     */
    static {
        
        String wantHeadroom = System.getProperty("wantHeadroom","");
        if(!wantHeadroom.isEmpty())
        new Timer().scheduleAtFixedRate(new TimerTask() {


            private Runtime runtime = Runtime.getRuntime();

            @Override
            public void run() {

                long l = runtime.freeMemory();
                long l1 = runtime.totalMemory();
                if(.2f*l1>l)
                    System.gc();
            }
        }, 1000,1000);

    }