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java.lang.IllegalStateException: second instance	at jenkins.model.Jenkins.(Jenkins.java:711)	at hudson.model.Hudson.(Hudson.java:81)	at org.jvnet.hudson.test.HudsonTestCase.newHudson(HudsonTestCase.java:441)	at org.jvnet.hudson.test.HudsonTestCase.setUp(HudsonTestCase.java:300)	at org.jenkins.plugins.audit2db.test.integration.WhenRunningJobsByDateReport.setUp(WhenRunningJobsByDateReport.java:66)	at junit.framework.TestCase.runBare(TestCase.java:132)	at org.jvnet.hudson.test.HudsonTestCase.runBare(HudsonTestCase.java:285)	at junit.framework.TestResult$1.protect(TestResult.java:110)	at junit.framework.TestResult.runProtected(TestResult.java:128)	at junit.framework.TestResult.run(TestResult.java:113)	at junit.framework.TestCase.run(TestCase.java:124)	at junit.framework.TestSuite.runTest(TestSuite.java:232)	at junit.framework.TestSuite.run(TestSuite.java:227)	at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:81)	at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)	at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)	at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:172)	at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:104)	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:70)