HBaseMailboxSessionMapperFactoryTest

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Test set: org.apache.james.mailbox.hbase.HBaseMailboxSessionMapperFactoryTest
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Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1.22 sec <<< FAILURE!
org.apache.james.mailbox.hbase.HBaseMailboxSessionMapperFactoryTest  Time elapsed: 0 sec  <<< ERROR!
java.lang.Exception: Error starting MiniCluster
	at org.apache.james.mailbox.hbase.HBaseClusterSingleton.<init>(HBaseClusterSingleton.java:58)
	at org.apache.james.mailbox.hbase.HBaseClusterSingleton.build(HBaseClusterSingleton.java:45)
	at org.apache.james.mailbox.hbase.HBaseMailboxSessionMapperFactoryTest.setUpClass(HBaseMailboxSessionMapperFactoryTest.java:51)
	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:601)
	at org.junit.internal.runners.ClassRoadie.runBefores(ClassRoadie.java:49)
	at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:36)
	at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42)
	at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:35)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:115)
	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:97)
	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:601)
	at org.apache.maven.surefire.booter.ProviderFactory$ClassLoaderProxy.invoke(ProviderFactory.java:103)
	at $Proxy0.invoke(Unknown Source)
	at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:150)
	at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcess(SurefireStarter.java:74)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:69)
Caused by: java.lang.NullPointerException
	at org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes(MiniDFSCluster.java:413)
	at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:274)
	at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniDFSCluster(HBaseTestingUtility.java:223)
	at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:345)
	at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:290)
	at org.apache.james.mailbox.hbase.HBaseClusterSingleton.<init>(HBaseClusterSingleton.java:55)
	... 21 more