Details
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Task
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Status: Closed
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Trivial
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Resolution: Invalid
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None
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None
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Description
If you try running HBase built with Java 8 on a Java 7 JRE, then processes will fail early with:
java.lang.NoSuchMethodError: java.util.concurrent.ConcurrentHashMap.keySet()Ljava/util/concurrent/ConcurrentHashMap$KeySetView;
I came across this incidentally. I suppose we should consider documenting this in the manual in the Troubleshooting section.