java.lang.ExceptionInInitializerError
Caused by: java.lang.IllegalArgumentException: Can't get Kerberos realm
at org.apache.hadoop.security.HadoopKerberosName.setConfiguration(HadoopKerberosName.java:65)
at org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:277)
at org.apache.hadoop.security.UserGroupInformation.setConfiguration(UserGroupInformation.java:313)
at com.gridsum.datasocket.Kerberos.<clinit>(Kerberos.java:26)
Caused by: java.lang.reflect.InvocationTargetException
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:498)
at org.apache.hadoop.security.authentication.util.KerberosUtil.getDefaultRealm(KerberosUtil.java:84)
at org.apache.hadoop.security.HadoopKerberosName.setConfiguration(HadoopKerberosName.java:63)
... 3 more
Caused by: KrbException: Cannot locate default realm
at sun.security.krb5.Config.getDefaultRealm(Config.java:1029)
... 9 more
Exception in thread "main"