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java.io.IOException: Shutting down	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)	at java.lang.ClassLoader.loadClass(ClassLoader.java:423)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)	at org.apache.hadoop.hbase.http.HttpServer.addDefaultServlets(HttpServer.java:677)	at org.apache.hadoop.hbase.http.HttpServer.initializeWebServer(HttpServer.java:546)	at org.apache.hadoop.hbase.http.HttpServer.(HttpServer.java:500)	at org.apache.hadoop.hbase.http.HttpServer.(HttpServer.java:104)	at org.apache.hadoop.hbase.http.HttpServer$Builder.build(HttpServer.java:345)	at org.apache.hadoop.hbase.http.InfoServer.(InfoServer.java:77)	at org.apache.hadoop.hbase.regionserver.HRegionServer.putUpWebUI(HRegionServer.java:1697)	at org.apache.hadoop.hbase.regionserver.HRegionServer.(HRegionServer.java:550)	at org.apache.hadoop.hbase.master.HMaster.(HMaster.java:333)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:525)	at org.apache.hadoop.hbase.util.JVMClusterUtil.createMasterThread(JVMClusterUtil.java:139)	at org.apache.hadoop.hbase.LocalHBaseCluster.addMaster(LocalHBaseCluster.java:217)	at org.apache.hadoop.hbase.LocalHBaseCluster.(LocalHBaseCluster.java:153)	at org.apache.hadoop.hbase.MiniHBaseCluster.init(MiniHBaseCluster.java:213)	at org.apache.hadoop.hbase.MiniHBaseCluster.(MiniHBaseCluster.java:93)	at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniHBaseCluster(HBaseTestingUtility.java:978)	at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:938)	at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:812)	at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:806)	at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:750)	at org.apache.hadoop.yarn.server.timelineservice.reader.TestTimelineReaderWebServicesHBaseStorage.setup(TestTimelineReaderWebServicesHBaseStorage.java:87)