[GEODE-9867] NPE When a connection is terminated after the client already sent in the operation

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.15.0
• Component/s: client/server
• Labels: GeodeOperationAPI pull-request-available unreleased
• Assignee: Jinmei Liao
• Reporter: Jinmei Liao
• Created: 01/Dec/21 20:58
• Updated: 22/Jun/22 20:46
• Resolved: 06/Dec/21 18:35

Description

The sequence of action is:

1. the client sent in the operation to the server
2. the message dispatcher to the client encountered some error and unregister this client and terminates the connection
3. the other thread continues to use the connection to process the command and we get the NPE:

 

java.lang.NullPointerException
    at org.apache.geode.internal.cache.tier.sockets.ServerConnection.bindSubject(ServerConnection.java:907)
    at org.apache.geode.internal.cache.tier.sockets.ServerConnection.doNormalMessage(ServerConnection.java:867)
    at org.apache.geode.internal.cache.tier.sockets.ServerConnection.doOneMessage(ServerConnection.java:1055)
    at org.apache.geode.internal.cache.tier.sockets.ServerConnection.run(ServerConnection.java:1326)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at org.apache.geode.internal.cache.tier.sockets.AcceptorImpl.lambda$initializeServerConnectionThreadPool$3(AcceptorImpl.java:690)
    at org.apache.geode.logging.internal.executors.LoggingThreadFactory.lambda$newThread$0(LoggingThreadFactory.java:120)
    at java.lang.Thread.run(Thread.java:748)

Issue Links

• links to: GitHub Pull Request #7158