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https://issues.apache.org/jira/browse/HADOOP-16431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16891534#comment-16891534
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Hudson commented on HADOOP-16431:
---------------------------------
FAILURE: Integrated in Jenkins build Hadoop-trunk-Commit #16976 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/16976/])
HADOOP-16431. Remove useless log in IOUtils.java and (aajisaka: rev
a1251addff8c02b4f08bdeb96d2aaa746c0ff65f)
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/IOUtils.java
* (edit)
hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/http/ExceptionDiags.java
> Remove useless log in IOUtils.java and ExceptionDiags.java
> ----------------------------------------------------------
>
> Key: HADOOP-16431
> URL: https://issues.apache.org/jira/browse/HADOOP-16431
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Lisheng Sun
> Assignee: Lisheng Sun
> Priority: Minor
> Fix For: 3.3.0
>
> Attachments: HADOOP-16431.001.patch, HADOOP-16431.002.patch
>
>
> When there is no String Constructor for the exception, we Log a Warn Message,
> and rethrow the exception. We can change the Log level to TRACE/DEBUG.
> {code:java}
> private static <T extends IOException> T wrapWithMessage(
> T exception, String msg) {
> Class<? extends Throwable> clazz = exception.getClass();
> try {
> Constructor<? extends Throwable> ctor =
> clazz.getConstructor(String.class);
> Throwable t = ctor.newInstance(msg);
> return (T) (t.initCause(exception));
> } catch (Throwable e) {
> LOG.trace("Unable to wrap exception of type " +
> clazz + ": it has no (String) constructor", e);
> return exception;
> }
> }
> {code}
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