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From Ivan Veselovsky <iveselovs...@gridgain.com>
Subject Re: Exception when running hadoop fs -ls igfs://igfs@localhost:10500/
Date Mon, 17 Apr 2017 15:04:33 GMT
Even more exactly, from the root cause stack trace it appears that the
replacement class  

   /** Hadoop class name: ShutdownHookManager replacement. */
    public static final String CLS_SHUTDOWN_HOOK_MANAGER_REPLACE =
       
"org.apache.ignite.internal.processors.hadoop.impl.v2.HadoopShutdownHookManager";
 
had bytecode version > 1.7.

After regular Ignite build the following class file produced:
-----------------
$ javap -v
./org/apache/ignite/internal/processors/hadoop/impl/v2/HadoopShutdownHookManager.class 
Classfile
/home/ivan/_git/apache-ignite/modules/hadoop/org/apache/ignite/internal/processors/hadoop/impl/v2/HadoopShutdownHookManager.class
  Last modified Apr 17, 2017; size 1802 bytes
  MD5 checksum 0deafdb744c37001448585ff0f7e6c12
  Compiled from "HadoopShutdownHookManager.java"
public class
org.apache.ignite.internal.processors.hadoop.impl.v2.HadoopShutdownHookManager
  SourceFile: "HadoopShutdownHookManager.java"
*  minor version: 0
  major version: 51
*  flags: ACC_PUBLIC, ACC_SUPER
----------------

Major version 51 corresponds to Java class file version 1.7.



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