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From Marshall Schor <...@schor.com>
Subject Re: [jira] Commented: (UIMA-1652) Cannot hot-install a PEAR twice
Date Thu, 05 Nov 2009 17:17:57 GMT


Olivier Terrier wrote:
> I tested the code on SUN's Java6 JRE
> On other JVMs (IBM) the code should just do nothing and return (-> bug not fixed but
same behavior as before) but I didn't test it.
>   

I guess the question is - should we wait for Java 7 and fix this then,
or patch this now (in the current pending release, for instance)?

Any opinions ?

-Marshall
> O.
>
>   
>> -----Message d'origine-----
>> De : Marshall Schor (JIRA) [mailto:uima-dev@incubator.apache.org]
>> Envoyé : jeudi 5 novembre 2009 13:30
>> À : uima-dev@incubator.apache.org
>> Objet : [jira] Commented: (UIMA-1652) Cannot hot-install a PEAR twice
>>
>>
>>     [ https://issues.apache.org/jira/browse/UIMA-
>> 1652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-
>> tabpanel&focusedCommentId=12773916#action_12773916 ]
>>
>> Marshall Schor commented on UIMA-1652:
>> --------------------------------------
>>
>> Do you know which Java's this works for (it appears to be using Sun
>> class impl internals)?  We currently test and have users who run on Sun
>> Java 5 & 6, and IBM Java 5 & 6, and maybe other Javas on other
>> machines.
>>
>>     
>>> Cannot hot-install a PEAR twice
>>> -------------------------------
>>>
>>>                 Key: UIMA-1652
>>>                 URL: https://issues.apache.org/jira/browse/UIMA-1652
>>>             Project: UIMA
>>>          Issue Type: Bug
>>>          Components: Tools
>>>    Affects Versions: 2.2.2
>>>         Environment: Windows
>>>            Reporter: Olivier Terrier
>>>         Attachments: uimaj-core_UIMA-1652.patch
>>>
>>>
>>> Due to a java bug "URLClassLoader.getResourceAsStream locks jar
>>>       
>> files"
>>     
>>> http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5041014
>>> When you use PackageInstaller.installPackage(installDir, pearFile,
>>>       
>> true, true); twice from an application because you want to hot-redeploy
>> a new version of a PEAR, you have an error:
>>     
>>> java.io.IOException: Error while trying to clean the installation
>>>       
>> directory MyPearDir
>>     
>>> 	at
>>>       
>> org.apache.uima.pear.tools.InstallationController.extractFilesFromPEARF
>> ile(InstallationController.java:742)
>>     
>>> 	at
>>>       
>> org.apache.uima.pear.tools.InstallationController.extractPEARFile(Insta
>> llationController.java:854)
>>     
>>> 	at
>>>       
>> org.apache.uima.pear.tools.InstallationController.installComponent(Inst
>> allationController.java:1551)
>>     
>>> 	at
>>>       
>> org.apache.uima.pear.tools.PackageInstaller.installPackage(PackageInsta
>> ller.java:171)
>>     
>>> A patch is proposed in this article
>>> http://management-platform.blogspot.com/2009/01/classloaders-keeping-
>>>       
>> jar-files-open.html
>>     
>>> I have implemented it modifying the UIMAClassLoader and the
>>>       
>> InstallationTester classes and it works
>>     
>>> I can submit a patch if you find it usefull
>>>       
>> --
>> This message is automatically generated by JIRA.
>> -
>> You can reply to this email to add a comment to the issue online.
>>     
>
>   

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