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https://issues.apache.org/jira/browse/AVRO-2054?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16095801#comment-16095801
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Hadoop QA commented on AVRO-2054:
---------------------------------

| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
12s{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} buildtest {color} | {color:green}  0m  
0s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} buildtest {color} | {color:green}  6m 
35s{color} | {color:green} the patch passed {color} |
| {color:black}{color} | {color:black} {color} | {color:black}  6m 51s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=1.13.1 Server=1.13.1 Image:yetus/avro:793178a |
| JIRA Issue | AVRO-2054 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12877859/AVRO-2054.1.patch |
| Optional Tests |  buildtest  javac  |
| uname | Linux 009ba9974657 3.13.0-117-generic #164-Ubuntu SMP Fri Apr 7 
11:05:26 UTC 2017 x86_64 GNU/Linux |
| Build tool | build |
| git revision | master / 793178a |
| Default Java | 1.7.0_111 |
| modules | C: lang/java U: lang/java |
| Console output | 
https://builds.apache.org/job/PreCommit-AVRO-Build-TEST/31/console |
| Powered by | Apache Yetus 0.4.0   http://yetus.apache.org |


This message was automatically generated.



> Use StringBuilder instead of StringBuffer
> -----------------------------------------
>
>                 Key: AVRO-2054
>                 URL: https://issues.apache.org/jira/browse/AVRO-2054
>             Project: Avro
>          Issue Type: Improvement
>    Affects Versions: 1.7.7, 1.8.2
>            Reporter: BELUGA BEHR
>            Assignee: BELUGA BEHR
>            Priority: Trivial
>         Attachments: AVRO-2054.1.patch
>
>
> Use the un-synchronized StringBuilder instead of StringBuffer.  Use _char_ 
> values instead of Strings.
> {code:title=org.apache.trevni.MetaData}
>   @Override public String toString() {
>     StringBuffer buffer = new StringBuffer();
>     buffer.append("{ ");
>     for (Map.Entry<String,byte[]> e : entrySet()) {
>       buffer.append(e.getKey());
>       buffer.append("=");
>       try {
>         buffer.append(new String(e.getValue(), "ISO-8859-1"));
>       } catch (java.io.UnsupportedEncodingException error) {
>         throw new TrevniRuntimeException(error);
>       }
>       buffer.append(" ");
>     }
>     buffer.append("}");
>     return buffer.toString();
>   }
> {code}



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