Index: src/test/api/java/common/javax/swing/plaf/basic/BasicFileChooserUITest.java =================================================================== --- src/test/api/java/common/javax/swing/plaf/basic/BasicFileChooserUITest.java (revision 507874) +++ src/test/api/java/common/javax/swing/plaf/basic/BasicFileChooserUITest.java (working copy) @@ -198,4 +198,14 @@ // Passed } } + + public void testGetApproveButtonMnemonic() { + try { + BasicFileChooserUI cb = new BasicFileChooserUI(new JFileChooser()); + cb.getApproveButtonMnemonic(null); + fail("NullPointerException expected"); + } catch (NullPointerException e) { + // PASSED + } + } }