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Posted to common-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2010/11/05 05:18:42 UTC
[jira] Commented: (HADOOP-6948) There's no way to remove a property
from a Configuration
[ https://issues.apache.org/jira/browse/HADOOP-6948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12928469#action_12928469 ]
Hadoop QA commented on HADOOP-6948:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12454518/HADOOP-6948.patch
against trunk revision 1031422.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
-1 core tests. The patch failed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
+1 system test framework. The patch passed system test framework compile.
Test results: https://hudson.apache.org/hudson/job/PreCommit-HADOOP-Build/12//testReport/
Findbugs warnings: https://hudson.apache.org/hudson/job/PreCommit-HADOOP-Build/12//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://hudson.apache.org/hudson/job/PreCommit-HADOOP-Build/12//console
This message is automatically generated.
> There's no way to remove a property from a Configuration
> --------------------------------------------------------
>
> Key: HADOOP-6948
> URL: https://issues.apache.org/jira/browse/HADOOP-6948
> Project: Hadoop Common
> Issue Type: Improvement
> Components: conf
> Affects Versions: 0.20.2, 0.21.0
> Environment: all
> Reporter: Mike Baranczak
> Assignee: Mike Baranczak
> Priority: Minor
> Fix For: 0.22.0
>
> Attachments: HADOOP-6948.patch
>
>
> The Configuration class has a lot of methods for setting properties, but it's impossible to remove a property once it's set. Trying to set it to null results in a NullPointerException, since java.util.Properties doesn't allow null values. When building a Configuration programmatically, this can be a problem.
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