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 Stack Overflow by Bishnu
, 3 months ago
via Google Groups by Tianxiang Xiong, 1 year ago
java.nio.channels.CancelledKeyException: null at sun.nio.ch.SelectionKeyImpl.ensureValid(SelectionKeyImpl.java:73)[na:1.8.0_31] at sun.nio.ch.SelectionKeyImpl.interestOps(SelectionKeyImpl.java:77)[na:1.8.0_31] at org.apache.storm.shade.org.apache.zookeeper.server.NIOServerCnxn.sendBuffer(NIOServerCnxn.java:151)[storm-core-1.0.1.jar:1.0.1] at org.apache.storm.shade.org.apache.zookeeper.server.NIOServerCnxn.sendResponse(NIOServerCnxn.java:1081)[storm-core-1.0.1.jar:1.0.1] at org.apache.storm.shade.org.apache.zookeeper.server.FinalRequestProcessor.processRequest(FinalRequestProcessor.java:170)[storm-core-1.0.1.jar:1.0.1] at org.apache.storm.shade.org.apache.zookeeper.server.SyncRequestProcessor.flush(SyncRequestProcessor.java:200)[storm-core-1.0.1.jar:1.0.1] at org.apache.storm.shade.org.apache.zookeeper.server.SyncRequestProcessor.run(SyncRequestProcessor.java:131)[storm-core-1.0.1.jar:1.0.1]