Index: modules/swing/src/test/api/java/common/javax/swing/text/DefaultCaretTest.java =================================================================== --- modules/swing/src/test/api/java/common/javax/swing/text/DefaultCaretTest.java (revision 488688) +++ modules/swing/src/test/api/java/common/javax/swing/text/DefaultCaretTest.java (working copy) @@ -228,6 +228,17 @@ assertEquals(tCompListenersCount, tCompListenersCountCurrent - 4); } + // Regression for HARMONY-2782 + public void testInstallNull() { + try { + new DefaultCaret().install(null); + fail("NullPointerException is expected"); + } catch (NullPointerException e) { + // expected + } + } + + /* * Tests that listeners was removed from JTextComponent. Doesn't test that * Document listener was removed.