Thread "gc" died null
java.lang.reflect.InvocationTargetException
        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:606)
        at org.apache.accumulo.start.Main$1.run(Main.java:89)
        at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.NoClassDefFoundError: org/apache/hadoop/hdfs/DistributedFileSystem
        at org.apache.accumulo.server.Accumulo.isInSafeMode(Accumulo.java:229)
        at org.apache.accumulo.server.Accumulo.waitForZookeeperAndHdfs(Accumulo.java:215)
        at org.apache.accumulo.server.Accumulo.init(Accumulo.java:134)
        at org.apache.accumulo.server.gc.SimpleGarbageCollector.main(SimpleGarbageCollector.java:131)
        ... 6 more
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hdfs.DistributedFileSystem
        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:424)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 10 more