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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-10607) [JDK8] NoSuchMethodError involving ConcurrentHashMap.keySet if running on JRE 7
Date Tue, 25 Feb 2014 18:50:19 GMT
Andrew Purtell created HBASE-10607:
--------------------------------------

             Summary: [JDK8] NoSuchMethodError involving ConcurrentHashMap.keySet if running
on JRE 7
                 Key: HBASE-10607
                 URL: https://issues.apache.org/jira/browse/HBASE-10607
             Project: HBase
          Issue Type: Task
            Reporter: Andrew Purtell
            Priority: Trivial


If you try running HBase built with Java 8 on a Java 7 JRE, then processes will fail early
with:

{noformat}
java.lang.NoSuchMethodError: java.util.concurrent.ConcurrentHashMap.keySet()Ljava/util/concurrent/ConcurrentHashMap$KeySetView;
{noformat}

I came across this incidentally. I suppose we should consider documenting this in the manual
in the Troubleshooting section. 



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