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From khandelwalanuj <khandelwal.anu...@gmail.com>
Subject Re: Facing "Failed to remove inactive durable subscriber"
Date Tue, 03 Feb 2015 11:26:03 GMT
*java.lang.NullPointerException* here.

Attaching the complete stack trace: 

[20150121 03:35:33.852 EST (ActiveMQ Durable Subscriber Cleanup Timer)
org.apache.activemq.broker.region.TopicRegion#doCleanup 102 ERROR] - Failed
to remove inactive durable subscriber 
*java.lang.NullPointerException
*        at
org.apache.activemq.store.kahadb.disk.index.BTreeIndex.loadNode(BTreeIndex.java:264)
        at
org.apache.activemq.store.kahadb.disk.index.BTreeIndex.getRoot(BTreeIndex.java:174)
        at
org.apache.activemq.store.kahadb.disk.index.BTreeIndex.clear(BTreeIndex.java:202)
        at
org.apache.activemq.store.kahadb.MessageDatabase$MessageOrderIndex.remove(MessageDatabase.java:2834)
        at
org.apache.activemq.store.kahadb.MessageDatabase$MessageOrderIndex.clear(MessageDatabase.java:2826)
        at
org.apache.activemq.store.kahadb.MessageDatabase.updateIndex(MessageDatabase.java:1471)
        at
org.apache.activemq.store.kahadb.MessageDatabase$15.execute(MessageDatabase.java:1204)
        at
org.apache.activemq.store.kahadb.disk.page.Transaction.execute(Transaction.java:779)
        at
org.apache.activemq.store.kahadb.MessageDatabase.process(MessageDatabase.java:1201)
        at
org.apache.activemq.store.kahadb.MessageDatabase$10.visit(MessageDatabase.java:1104)
        at
org.apache.activemq.store.kahadb.data.KahaSubscriptionCommand.visit(KahaSubscriptionCommand.java:187)
        at
org.apache.activemq.store.kahadb.MessageDatabase.process(MessageDatabase.java:1071)
        at
org.apache.activemq.store.kahadb.MessageDatabase.store(MessageDatabase.java:978)
        at
org.apache.activemq.store.kahadb.MessageDatabase.store(MessageDatabase.java:958)
        at
org.apache.activemq.store.kahadb.KahaDBStore$KahaDBTopicMessageStore.deleteSubscription(KahaDBStore.java:788)
        at
org.apache.activemq.store.ProxyTopicMessageStore.deleteSubscription(ProxyTopicMessageStore.java:103)
        at
org.apache.activemq.store.ProxyTopicMessageStore.deleteSubscription(ProxyTopicMessageStore.java:103)
        at
org.apache.activemq.broker.region.Topic.deleteSubscription(Topic.java:201)
        at
org.apache.activemq.broker.region.TopicRegion.removeSubscription(TopicRegion.java:199)
        at
org.apache.activemq.broker.region.TopicRegion.doCleanup(TopicRegion.java:100)
        at
org.apache.activemq.broker.region.TopicRegion$1.run(TopicRegion.java:70)
        at java.util.TimerThread.mainLoop(Timer.java:555)
        at java.util.TimerThread.run(Timer.java:505)

Please check this. 

Thanks,
Anuj



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