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https://issues.apache.org/jira/browse/GEODE-6959?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kirk Lund resolved GEODE-6959.
------------------------------
Resolution: Fixed
Fix Version/s: 1.10.0
> NPE if AlertAppender is not defined
> -----------------------------------
>
> Key: GEODE-6959
> URL: https://issues.apache.org/jira/browse/GEODE-6959
> Project: Geode
> Issue Type: Bug
> Components: logging
> Affects Versions: 1.9.0, 1.10.0
> Reporter: Vadim Lotarev
> Assignee: Kirk Lund
> Priority: Major
> Fix For: 1.10.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> NullPointer exception is produced if custom Log4j2.xml is used and
> AlertAppender is not defined.
>
> {code:java}
> 01:43:12.760 WARN [] JGRP000039: 192.168.100.109<v3>:10100: failed to
> deliver OOB message [dst: 192.168.100.109<v3>:10100, src:
> 192.168.100.109<v0>:41000 (2 headers), size=208 bytes,
> flags=OOB|DONT_BUNDLE|NO_FC|SKIP_BARRIER]: java.lang.NullPointerException
> java.lang.NullPointerException
> at
> org.apache.geode.distributed.internal.membership.gms.mgr.GMSMembershipManager.forceDisconnect(GMSMembershipManager.java:2558)
> ~[geode-core-1.9.0.jar:?]
> at
> org.apache.geode.distributed.internal.membership.gms.membership.GMSJoinLeave.forceDisconnect(GMSJoinLeave.java:1093)
> ~[geode-core-1.9.0.jar:?]
> at
> org.apache.geode.distributed.internal.membership.gms.membership.GMSJoinLeave.processRemoveRequest(GMSJoinLeave.java:674)
> ~[geode-core-1.9.0.jar:?]
> at
> org.apache.geode.distributed.internal.membership.gms.membership.GMSJoinLeave.processMessage(GMSJoinLeave.java:1897)
> ~[geode-core-1.9.0.jar:?]
> at
> org.apache.geode.distributed.internal.membership.gms.messenger.JGroupsMessenger$JGroupsReceiver.receive(JGroupsMessenger.java:1328)
> ~[geode-core-1.9.0.jar:?]
> at
> org.apache.geode.distributed.internal.membership.gms.messenger.JGroupsMessenger$JGroupsReceiver.receive(JGroupsMessenger.java:1266)
> ~[geode-core-1.9.0.jar:?]
> at org.jgroups.JChannel.invokeCallback(JChannel.java:816)
> ~[jgroups-3.6.14.Final.jar:3.6.14.Final]
> at org.jgroups.JChannel.up(JChannel.java:741)
> ~[jgroups-3.6.14.Final.jar:3.6.14.Final]
> at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:1030)
> ~[jgroups-3.6.14.Final.jar:3.6.14.Final]
> {code}
> I would propose to make AlertAppender optional.
>
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