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  1. Hadoop Common
  2. HADOOP-17430

Restore ability to set Text to empty byte array

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    Description

      In org.apache.hadoop.io.Text:clear() method, the comments show that we can free the bytes by call set(new byte[0]), but it's not going to work now. Maybe we can follow this comments.

       

       

      // org.apache.hadoop.io.Text 
      
      /**
       * Clear the string to empty.
       *
       * <em>Note</em>: For performance reasons, this call does not clear the
       * underlying byte array that is retrievable via {@link #getBytes()}.
       * In order to free the byte-array memory, call {@link #set(byte[])}
       * with an empty byte array (For example, <code>new byte[0]</code>).
       */
      public void clear() {
        length = 0;
        textLength = -1;
      }
      

       

       

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              lalapala gaozhan ding
              lalapala gaozhan ding
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