Feb 26, 2016 10:16:58 PM org.slf4j.impl.MultithreadedInitializationTest multiThreadedInitialization
INFO: hello
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.949 sec <<< FAILURE! - in org.slf4j.impl.MultithreadedInitializationTest
multiThreadedInitialization(org.slf4j.impl.MultithreadedInitializationTest)  Time elapsed: 0.33 sec  <<< FAILURE!
java.lang.AssertionError: expected:<17> but was:<3>
        at org.junit.Assert.fail(Assert.java:93)
        at org.junit.Assert.failNotEquals(Assert.java:647)
        at org.junit.Assert.assertEquals(Assert.java:128)
        at org.junit.Assert.assertEquals(Assert.java:472)
        at org.junit.Assert.assertEquals(Assert.java:456)
        at org.slf4j.impl.MultithreadedInitializationTest.multiThreadedInitialization(MultithreadedInitializationTest.java:91)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
        ...
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
        at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:161)
        at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)

Results :

Failed tests:
  MultithreadedInitializationTest.multiThreadedInitialization:91 expected:<17> but was:<3>