Ever wanted to try and set the transparency level of some JWindow's or JFrames? Here is another snippet of code to keep close by that might come in handy.
Class<?> awtUtilitiesClass = Class.forName("com.sun.awt.AWTUtilities");
Method method = awtUtilitiesClass.getMethod("setWindowOpacity", Window.class, float.class);
method.invoke(null, /*JFrame or JWindow here*/, /*The opacity level in float value from 0.0 to 1*/);