Index: /modules/swing/src/test/api/java/common/javax/swing/JLayeredPaneTest.java =================================================================== --- /modules/swing/src/test/api/java/common/javax/swing/JLayeredPaneTest.java (revision 453106) +++ /modules/swing/src/test/api/java/common/javax/swing/JLayeredPaneTest.java (working copy) @@ -411,6 +411,14 @@ assertEquals(0, layered.getLayer(c)); // layered.getLayer((Component)null) - throws NPE + try{ + layered.getLayer((Component) null); + fail("NPE should be thrown!"); + } + catch(NullPointerException e){ + //expected + assertEquals(true,true); + } } /*