[randomwalk.Framework] ERROR: Error during random walk
java.lang.Exception: Error running node ct.ChangePermissions
at org.apache.accumulo.test.randomwalk.Module.visit(Module.java:285)
at org.apache.accumulo.test.randomwalk.Framework.run(Framework.java:65)
at org.apache.accumulo.test.randomwalk.Framework.main(Framework.java:125)
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:622)
at org.apache.accumulo.start.Main$1.run(Main.java:137)
at java.lang.Thread.run(Thread.java:701)
Caused by: java.lang.NullPointerException
at org.apache.accumulo.test.randomwalk.concurrent.ChangePermissions.visit(ChangePermissions.java:70)
at org.apache.accumulo.test.randomwalk.Module.visit(Module.java:254)
... 8 more