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Posted to issues@camel.apache.org by "Daniel Davis (JIRA)" <ji...@apache.org> on 2015/10/27 20:15:27 UTC

[jira] [Comment Edited] (CAMEL-8241) Exec command failures using Java 8 on Unix

    [ https://issues.apache.org/jira/browse/CAMEL-8241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14976953#comment-14976953 ] 

Daniel Davis edited comment on CAMEL-8241 at 10/27/15 7:15 PM:
---------------------------------------------------------------

I can confirm the same error on RHEL 6.x using ServiceMix 5.5.0, Camel 2.15.2 and Oracle Java 1.8_66.  The source code for the exec component has the workaround described above.

The stack trace is:

2015-10-27 14:39:58,830 | WARN  | ora.apim.update] | EndpointMessageListener          | 124 - org.apache.camel.camel-core - 2.15.2 | Execution of JMS message listener failed. Caused by: [org.apache.camel.component.exec.ExecException - Unable to execute command ExecCommand [args=[-f, staging/ID-oris-srv03-si-edu-51333-1445886844310-7-158], executable=rm, timeout=9223372036854775807, outFile=null, workingDir=null, useStderrOnEmptyStdout=false]]
org.apache.camel.component.exec.ExecException: Unable to execute command ExecCommand [args=[-f, staging/ID-oris-srv03-si-edu-51333-1445886844310-7-158], executable=rm, timeout=9223372036854775807, outFile=null, workingDir=null, useStderrOnEmptyStdout=false]
        at org.apache.camel.component.exec.impl.DefaultExecCommandExecutor.execute(DefaultExecCommandExecutor.java:102)[230:org.apache.camel.camel-exec:2.15.2]
        at org.apache.camel.component.exec.ExecProducer.process(ExecProducer.java:53)[230:org.apache.camel.camel-exec:2.15.2]
        at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)[124:org.apache.camel.camel-core:2.15.2]
        at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:448)[124:org.apache.camel.camel-core:2.15.2]
        at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)[124:org.apache.camel.camel-core:2.15.2]
 











was (Author: davisda):
I can confirm the same error on RHEL 6.x using ServiceMix 5.5.0, Camel 2.15.2 and Oracle Java 1.8_66.

> Exec command failures using Java 8 on Unix
> ------------------------------------------
>
>                 Key: CAMEL-8241
>                 URL: https://issues.apache.org/jira/browse/CAMEL-8241
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 2.14.0
>         Environment: JDK 1.8 on Unix systems
>            Reporter: Dave Heath
>            Assignee: Claus Ibsen
>             Fix For: 2.14.2, 2.15.0
>
>         Attachments: CamelExecTest.java
>
>
> I'm attaching a test case that shows an issue I've been running into with the exec command since updating my environment to Java 8. It appears that I'm running into a race condition where a stream is sometimes closed prematurely before DefaultExecutor has a chance to close it, causing DefaultExecCommandExecutor to throw and exit (even though the command did execute properly). I've tested this against the updated version of commons-exec as well just to make sure this hasn't somehow been fixed in that library.
> Please note that the attached test doesn't always fail; you may need to run it a few times before the error will show up.



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