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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-217) IllegalAcessException when creating a Block object via WritableFactories
Date Fri, 02 Jun 2006 19:59:30 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-217?page=all ]
     
Doug Cutting resolved HADOOP-217:
---------------------------------

    Fix Version: 0.3
                     (was: 0.4)
     Resolution: Fixed

I just committed this.  Thanks!

> IllegalAcessException when creating a Block object via WritableFactories
> ------------------------------------------------------------------------
>
>          Key: HADOOP-217
>          URL: http://issues.apache.org/jira/browse/HADOOP-217
>      Project: Hadoop
>         Type: Bug

>   Components: dfs
>     Versions: 0.3
>     Reporter: Hairong Kuang
>     Assignee: Hairong Kuang
>      Fix For: 0.3
>  Attachments: access.patch, block.patch
>
> When I ran the dfs namenode, I received an error message listed below. Changing Block
class to be public will be able to fix the problem.
> java.lang.RuntimeException: java.lang.IllegalAccessException: Class org.apache.hadoop.io.WritableFactories
can not access a member of class org.apache.hadoop.dfs.Block with modifiers "public"
> java.lang.RuntimeException: java.lang.IllegalAccessException: Class org.apache.hadoop.io.WritableFactories
can not access a member of class org.apache.hadoop.dfs.Block with modifiers "public"
>         at org.apache.hadoop.io.WritableFactories.newInstance(WritableFactories.java:49)
>         at org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:226)
>         at org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:163)
>         at org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:211)
>         at org.apache.hadoop.ipc.RPC$Invocation.readFields(RPC.java:88)
>         at org.apache.hadoop.ipc.Server$Connection.run(Server.java:154)
> Caused by: java.lang.IllegalAccessException: Class org.apache.hadoop.io.WritableFactories
can not access a member of class org.apache.hadoop.dfs.Block with modifiers "public"
>         at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:65)
>         at java.lang.Class.newInstance0(Class.java:344)
>         at java.lang.Class.newInstance(Class.java:303)
>         at org.apache.hadoop.io.WritableFactories.newInstance(WritableFactories.java:45)
>         ... 5 more

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