title: Clear a transparent BufferedImage as fast as possible
body: <p>I have a transparent BufferedImage created with the following code(not relevant how it is created, I think):</p>
  
  <pre><code>            GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
              GraphicsDevice gs = ge.getDefaultScreenDevice();
              GraphicsConfiguration gc = gs.getDefaultConfiguration();
  
              Rectangle screen = transformationContext.getScreen();
  
              // Create an image that supports transparent pixels
              return gc.createCompatibleImage((int) screen.getWidth(), (int) screen.getHeight(),
                      Transparency.BITMASK);
  </code></pre>
  
  <p>How do I clear the image(empty image in the same state as it was created) in the fastest way possible without recreating the image? Recreating the image puts a burden on GC, pausing the VM and freezing the UI.</p>