[Hadoop Wiki] Update of "HowToUseInjectionFramework" by KonstantinBoudnik

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The "HowToUseInjectionFramework" page has been changed by KonstantinBoudnik.
http://wiki.apache.org/hadoop/HowToUseInjectionFramework?action=diff&rev1=3&rev2=4

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   * when a handler is executed
  
  ==== Aspect Example ====
- {{{
+ {{{#!java
  package org.apache.hadoop.hdfs.server.datanode;
  
  import org.apache.commons.logging.Log;
@@ -167, +167 @@

  }}}
   * From a program:
  
- {{{
+ {{{#!java
  package org.apache.hadoop.fs;
  
  import org.junit.Test;