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https://issues.apache.org/jira/browse/HADOOP-8031?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13440169#comment-13440169
 ] 

Hadoop QA commented on HADOOP-8031:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12542098/HADOOP-8031.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified 
tests.
                        Please justify why no new tests are needed for this 
patch.
                        Also please list what manual steps were performed to 
verify this patch.

    +1 javac.  The applied patch does not increase the total number of javac 
compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) 
warnings.

    +1 release audit.  The applied patch does not increase the total number of 
release audit warnings.

    +1 core tests.  The patch passed unit tests in 
hadoop-common-project/hadoop-common.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: 
https://builds.apache.org/job/PreCommit-HADOOP-Build/1350//testReport/
Console output: 
https://builds.apache.org/job/PreCommit-HADOOP-Build/1350//console

This message is automatically generated.
                
> Configuration class fails to find embedded .jar resources; should use 
> URL.openStream()
> --------------------------------------------------------------------------------------
>
>                 Key: HADOOP-8031
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8031
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: conf
>    Affects Versions: 2.0.0-alpha
>            Reporter: Elias Ross
>            Assignee: Elias Ross
>         Attachments: 0001-fix-HADOOP-7982-class-loader.patch, 
> HADOOP-8031.patch, hadoop-8031.txt
>
>
> While running a hadoop client within RHQ (monitoring software) using its 
> classloader, I see this:
> 2012-02-07 09:15:25,313 INFO  [ResourceContainer.invoker.daemon-2] 
> (org.apache.hadoop.conf.Configuration)- parsing 
> jar:file:/usr/local/rhq-agent/data/tmp/rhq-hadoop-plugin-4.3.0-SNAPSHOT.jar6856622641102893436.classloader/hadoop-core-0.20.2+737+1.jar7204287718482036191.tmp!/core-default.xml
> 2012-02-07 09:15:25,318 ERROR [InventoryManager.discovery-1] 
> (rhq.core.pc.inventory.InventoryManager)- Failed to start component for 
> Resource[id=16290, type=NameNode, key=NameNode:/usr/lib/hadoop-0.20, 
> name=NameNode, parent=vg61l01ad-hadoop002.apple.com] from synchronized merge.
> org.rhq.core.clientapi.agent.PluginContainerException: Failed to start 
> component for resource Resource[id=16290, type=NameNode, 
> key=NameNode:/usr/lib/hadoop-0.20, name=NameNode, 
> parent=vg61l01ad-hadoop002.apple.com].
> Caused by: java.lang.RuntimeException: core-site.xml not found
>       at 
> org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:1308)
>       at 
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:1228)
>       at 
> org.apache.hadoop.conf.Configuration.getProps(Configuration.java:1169)
>       at org.apache.hadoop.conf.Configuration.set(Configuration.java:438)
> This is because the URL
> jar:file:/usr/local/rhq-agent/data/tmp/rhq-hadoop-plugin-4.3.0-SNAPSHOT.jar6856622641102893436.classloader/hadoop-core-0.20.2+737+1.jar7204287718482036191.tmp!/core-default.xml
> cannot be found by DocumentBuilder (doesn't understand it). (Note: the logs 
> are for an old version of Configuration class, but the new version has the 
> same code.)
> The solution is to obtain the resource stream directly from the URL object 
> itself.
> That is to say:
> {code}
>          URL url = getResource((String)name);
> -        if (url != null) {
> -          if (!quiet) {
> -            LOG.info("parsing " + url);
> -          }
> -          doc = builder.parse(url.toString());
> -        }
> +        doc = builder.parse(url.openStream());
> {code}
> Note: I have a full patch pending approval at Apple for this change, 
> including some cleanup.

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