Thanks Shawn,
Well spotted and sorted.
Regards,
Peter.
On 5/11/2018 6:46 AM, Shawn Ellis (JIRA) wrote:
[
https://issues.apache.org/jira/browse/RIVER-467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Shawn Ellis updated RIVER-467:
------------------------------
Attachment: LeaseRenewalManager-NPE-1.patch
NullPointerException when JoinManager is terminating
----------------------------------------------------
Key: RIVER-467
URL: https://issues.apache.org/jira/browse/RIVER-467
Project: River
Issue Type: Bug
Components: com_sun_jini_lookup
Affects Versions: River_3.0.0
Reporter: Shawn Ellis
Priority: Minor
Attachments: LeaseRenewalManager-NPE-1.patch
Every now and then I would encounter a NullPointerException with the
JoinManager. The way that I was able to reproduce this problem was to have a
service up and running and then switch the network on my laptop. For example, I
would switch from one wifi network to another.
I've attached a patch that protects against the NullPointerException and seems
to work fine when switching networks. [^LeaseRenewalManager-NPE-1.patch]
{code:java}
Oct 7 14:8:28 CDT SEVERE:thr 652:Exception in thread
"LeaseRenewalManager_thread-3"
Oct 7 14:8:28 CDT SEVERE:thr 652:java.lang.NullPointerException
Oct 7 14:8:28 CDT SEVERE:thr 652: at
net.jini.lookup.JoinManager$ProxyReg.terminate(JoinManager.java:1266)
Oct 7 14:8:28 CDT SEVERE:thr 652: at
net.jini.lookup.JoinManager.removeTasks(JoinManager.java:2774)
Oct 7 14:8:28 CDT SEVERE:thr 652: at
net.jini.lookup.JoinManager.access$400(JoinManager.java:456)
Oct 7 14:8:28 CDT SEVERE:thr 652: at
net.jini.lookup.JoinManager$ProxyReg$DiscLeaseListener.notify(JoinManager.java:1188)
Oct 7 14:8:28 CDT SEVERE:thr 652: at
net.jini.lease.LeaseRenewalManager.tell(LeaseRenewalManager.java:1412)
Oct 7 14:8:28 CDT SEVERE:thr 652: at
net.jini.lease.LeaseRenewalManager.access$500(LeaseRenewalManager.java:322)
Oct 7 14:8:28 CDT SEVERE:thr 652: at
net.jini.lease.LeaseRenewalManager$RenewTask.run(LeaseRenewalManager.java:451)
Oct 7 14:8:28 CDT SEVERE:thr 652: at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135)
Oct 7 14:8:28 CDT SEVERE:thr 652: at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
Oct 7 14:8:28 CDT SEVERE:thr 652: at
java.base/java.lang.Thread.run(Thread.java:844)
{code}
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