junit.framework.AssertionFailedError: duplicates removed (cf. #50644) expected:<[MasterFileObject@10ef90c[file:/E:/space/test4u/testrun/work/user/org.apache.tools.ant.module.api.support.ActionUtilsTest/testFindSelectedFiles/f1.data]]> but was:<[MasterFileObject@10ef90c[file:/E:/space/test4u/testrun/work/user/org.apache.tools.ant.module.api.support.ActionUtilsTest/testFindSelectedFiles/f1.data], MasterFileObject@10ef90c[file:/E:/space/test4u/testrun/work/user/org.apache.tools.ant.module.api.support.ActionUtilsTest/testFindSelectedFiles/f1.data]]>
	at junit.framework.Assert.fail(Assert.java:47)
	at junit.framework.Assert.failNotEquals(Assert.java:282)
	at junit.framework.Assert.assertEquals(Assert.java:64)
	at org.apache.tools.ant.module.api.support.ActionUtilsTest.testFindSelectedFiles(ActionUtilsTest.java:86)
	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 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:119)
	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:176)
	at org.netbeans.xtest.testrunner.JUnitTestRunner.runTests(JUnitTestRunner.java:127)
	at org.netbeans.xtest.plugin.jvm.JUnitTestRunnerLauncher.main(JUnitTestRunnerLauncher.java:41)