--- old/src/share/classes/javax/swing/JFrame.java 2012-02-28 15:56:19.000000000 +0300 +++ new/src/share/classes/javax/swing/JFrame.java 2012-02-28 15:56:18.000000000 +0300 @@ -266,7 +266,7 @@ getRootPane().setWindowDecorationStyle(JRootPane.FRAME); } } - sun.awt.SunToolkit.checkAndSetPolicy(this, true); + sun.awt.SunToolkit.checkAndSetPolicy(this); } /**