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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "HadoopJavaVersions" by SomeOtherAccount
Date Sat, 19 Nov 2011 21:48:43 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.

The "HadoopJavaVersions" page has been changed by SomeOtherAccount:
http://wiki.apache.org/hadoop/HadoopJavaVersions?action=diff&rev1=19&rev2=20

  
  Hadoop 0.20.20x, 0.21.0, and trunk use a few Sun-specific APIs which IBM Java does not provide.
[[https://issues.apache.org/jira/browse/HADOOP-6941|HADOOP-6941]] and [[https://issues.apache.org/jira/browse/HADOOP-7211|HADOOP-7211]]
have been filed to support non-Sun/Oracle Java.
  
- == Apache Harmony ==
- [[http://harmony.apache.org/|Apache Harmony]] is the Java SE project of the Apache Software
Foundation. Within this project Harmony Select exists as a lightweight JVM with only a subset
(ex. swing, applet and others not included) of the libraries in Harmony. For the past couple
of months we have worked on the task of making all three projects in Hadoop run in Harmony
Select 6, there are still a few non critical pending issues in all three projects, but we
hope this serves as a useful guide for anyone deciding to use both Harmony and Hadoop.
- 
-  * [[HarmonyBuild|Building Harmony and Harmony Select 6]]
-  * [[HarmonyCommon|Hadoop common on Harmony Select]]
-  * [[HarmonyHdfs|Hadoop hdfs on Harmony Select]]
-  * [[HarmonyMapreduce|Hadoop mapreduce on Harmony Select]]
- 
  == A request for help from JVM/JDK developers ==
  We would strongly encourage anyone who produces a JVM/JDK to test compiling and running
Hadoop with it. It makes for a fantastic performance and stress test. As Hadoop is becoming
a key back-end datacenter application, good Hadoop support matters.
  

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