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https://issues.apache.org/jira/browse/OAK-4107?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Egli resolved OAK-4107.
------------------------------
Resolution: Fixed
Fix Version/s: 1.5.2
Catching and warning done in http://svn.apache.org/viewvc?rev=1740462&view=rev
If we'll run into many of those warns we'll have to dig further to see why
mongo doesn't return a localTime in the first place
> NPE in MongoDocumentStore.determineServerTimeDifferenceMillis
> -------------------------------------------------------------
>
> Key: OAK-4107
> URL: https://issues.apache.org/jira/browse/OAK-4107
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: mongomk
> Reporter: Chetan Mehrotra
> Assignee: Stefan Egli
> Priority: Minor
> Fix For: 1.6, 1.5.2
>
> Attachments: OAK-4107.patch
>
>
> On system startup with Mongo following exception is seen
> {noformat}
> 07.03.2016 06:26:10.529 *WARN* [FelixStartLevel]
> org.apache.jackrabbit.oak.plugins.document.DocumentNodeStoreService
> registerNodeStore: got RuntimeException while trying to determine time
> difference to server: java.lang.NullPointerException
> java.lang.NullPointerException: null
> at
> org.apache.jackrabbit.oak.plugins.document.mongo.MongoDocumentStore.determineServerTimeDifferenceMillis(MongoDocumentStore.java:1568)
> at
> org.apache.jackrabbit.oak.plugins.document.util.LeaseCheckDocumentStoreWrapper.determineServerTimeDifferenceMillis(LeaseCheckDocumentStoreWrapper.java:203)
> at
> org.apache.jackrabbit.oak.plugins.document.DocumentNodeStoreService.registerNodeStore(DocumentNodeStoreService.java:514)
> at
> org.apache.jackrabbit.oak.plugins.document.DocumentNodeStoreService.registerNodeStoreIfPossible(DocumentNodeStoreService.java:371)
> at
> org.apache.jackrabbit.oak.plugins.document.DocumentNodeStoreService.bindBlobStore(DocumentNodeStoreService.java:554)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> {noformat}
> Per code {{serverLocalTime}} appears to be null
> {code}
> final Date serverLocalTime = db.command("serverStatus").getDate("localTime");
> final long end = System.currentTimeMillis();
> final long midPoint = (start + end) / 2;
> final long serverLocalTimeMillis = serverLocalTime.getTime();
> {code}
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