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junit.framework.AssertionFailedError: null at junit.framework.Assert.fail(Assert.java:47) at junit.framework.Assert.assertTrue(Assert.java:20) at junit.framework.Assert.assertTrue(Assert.java:27) at hudson.plugins.mercurial.MercurialTestCase.buildAndCheck(MercurialTestCase.java:47) at hudson.plugins.mercurial.MercurialSCMTest.testBranches(MercurialSCMTest.java:47) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)