[jira] [Resolved] (HADOOP-17430) Restore ability to set Text to empty byte array

["Steve Loughran (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-17430?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Loughran resolved HADOOP-17430.
-------------------------------------
    Fix Version/s: 3.3.1
       Resolution: Fixed

>  Restore ability to set Text to empty byte array
> ------------------------------------------------
>
>                 Key: HADOOP-17430
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17430
>             Project: Hadoop Common
>          Issue Type: Wish
>          Components: common
>            Reporter: gaozhan ding
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 3.3.1
>
>          Time Spent: 3.5h
>  Remaining Estimate: 0h
>
> 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.
>  
>  
> {code:java}
> // 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;
> }
> {code}
>  
>  



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