Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Google Groups by Mahesh Abnave, 1 year ago
via Stack Overflow by SteveS
, 2 years ago
via GitHub by junzew
, 9 months ago
host=null, port=4321
via GitHub by cornelius80
, 2 years ago
via GitHub by cornelius80
, 2 years ago
hostname can't be null
java.lang.IllegalArgumentException: *hostname can't be null* at java.net.InetSocketAddress.<init>(InetSocketAddress.java:139)[na:1.7.0_02] at org.hbase.async.HBaseClient.newClient(HBaseClient.java:3042)[asynchbase-1.7.1.jar:na] at org.hbase.async.HBaseClient.access$3200(HBaseClient.java:190)[asynchbase-1.7.1.jar:na] at org.hbase.async.HBaseClient$ZKClient$ZKCallback.handleMetaZnode(HBaseClient.java:3765)[asynchbase-1.7.1.jar:na] at org.hbase.async.HBaseClient$ZKClient$ZKCallback.processResult(HBaseClient.java:3621)[asynchbase-1.7.1.jar:na] at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:558)[zookeeper-3.4.5.jar:3.4.5-1392090] at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:495)[zookeeper-3.4.5.jar:3.4.5-1392090]