junit.framework.AssertionFailedError: Data Object Not Modified
	at junit.framework.Assert.fail(Assert.java:47)
	at junit.framework.Assert.assertTrue(Assert.java:20)
	at junit.framework.Assert.assertNotNull(Assert.java:220)
	at org.netbeans.modules.xml.multiview.test.XmlMultiViewEditorTest.testChangeModel(XmlMultiViewEditorTest.java:79)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at junit.framework.TestCase.runTest(TestCase.java:154)
	at org.netbeans.junit.NbTestCase.runTest(NbTestCase.java:178)
	at junit.framework.TestCase.runBare(TestCase.java:127)
	at junit.framework.TestResult$1.protect(TestResult.java:106)
	at junit.framework.TestResult.runProtected(TestResult.java:124)
	at junit.framework.TestResult.run(TestResult.java:109)
	at junit.framework.TestCase.run(TestCase.java:118)
	at org.netbeans.junit.NbTestCase.run(NbTestCase.java:111)
	at junit.framework.TestSuite.runTest(TestSuite.java:208)
	at junit.framework.TestSuite.run(TestSuite.java:203)
	at org.netbeans.xtest.testrunner.JUnitTestRunner.runTests(JUnitTestRunner.java:167)
	at org.netbeans.xtest.testrunner.JUnitTestRunner.runTests(JUnitTestRunner.java:118)
	at org.netbeans.xtest.plugin.ide.MainWithExec.run(MainWithExec.java:210)
	at org.netbeans.xtest.plugin.ide.Main$3.run(Main.java:290)
	at java.lang.Thread.run(Thread.java:595)