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From Josh Elser <>
Subject Fwd: Dropping support for JDK6 in Apache Hadoop
Date Tue, 19 Aug 2014 19:32:15 GMT

-------- Original Message --------
Subject: Dropping support for JDK6 in Apache Hadoop
Date: Tue, 19 Aug 2014 10:52:45 -0700
From: Arun C Murthy <>
To: <>,,,
CC: <>

[Apologies for the wide distribution.]

Dear HBase/Hive/Pig/Oozie communities,

  We, over at Hadoop are considering dropping support for JDK6 this year.

  As you maybe aware we just released hadoop-2.5.0 and are now 
considering making the next release i.e. hadoop-2.6.0 the *last* release 
of Apache Hadoop which supports JDK6. This means, from hadoop-2.7.0 
onwards we will not support JDK6 anymore and we *may* start relying on 
JDK7-specific apis.

  Now, the above releases a proposal and we do not want to pull the 
trigger without talking to projects downstream - hence the request for 
you feedback.

  Please feel free to forward this to other communities you might deem 
to be at risk from this too.


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