public void close() throws IllegalStateException {
synchronized (SplashScreen.class) {
    checkVisible();
    _close(splashPtr);
    image=null;
    SplashScreen.markClosed();
  }
}

public void close ( ) throws IllegalStateException { synchronized ( SplashScreen . class ) { checkVisible ( ) ; _close ( splashPtr ) ; image = null ; SplashScreen . markClosed ( ) ; } }
hides the splash screen , closes the window , and releases all associated resources .
