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From "Alex Halovanic (JIRA)" <j...@codehaus.org>
Subject [jira] (MEAR-146) Expose parameter to not write library-directory element in application.xml
Date Thu, 16 Aug 2012 02:53:21 GMT

    [ https://jira.codehaus.org/browse/MEAR-146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=306325#comment-306325
] 

Alex Halovanic commented on MEAR-146:
-------------------------------------

I checked that empty library directory works for my use case with WebLogic too.  But only
in a way that worries me that these two scenarios don't entirely match up.

Remember that /APP-INF/lib is the older WebLogic-specific magic library classpath and /lib
is supposed to be the standardized location since EAR v5.

These are the three scenarios defined according to the Sun XSD:
# Element not present - search in /lib
## WebLogic searches /lib and in /APP-INF/lib and some other special external directories
(exploded EARs, generic file overrides, etc.)
# Element empty - disable searching
## WebLogic still searches in /APP-INF/lib and the external directories, but fails to search
/lib.
# Element defined - search in given directory
## WebLogic exclusively searches in this directory and ignores all others.

So I think in Sean and my cases an empty element works, but *only* so long as we stick to
the WebLogic specific APP-INF/lib defaultLibBundleDir.
                
> Expose parameter to not write library-directory element in application.xml
> --------------------------------------------------------------------------
>
>                 Key: MEAR-146
>                 URL: https://jira.codehaus.org/browse/MEAR-146
>             Project: Maven 2.x Ear Plugin
>          Issue Type: Improvement
>    Affects Versions: 2.7
>         Environment: Oracle WebLogic
>            Reporter: Alex Halovanic
>            Priority: Minor
>             Fix For: 2.8
>
>         Attachments: ear-remove-librarydirectory-IT.patch, ear-remove-librarydirectory-IT.patch,
ear-remove-librarydirectory.patch, ear-remove-librarydirectory.patch
>
>
> The current handling of defaultLibBundleDir leads to some issues on Oracle Weblogic 10+.
 The Ear plugin currently sets library-directory to the value of defaultLibBundleDir in the
application.xml for EARs v5+.  Some of Oracle's classloading features break (specifically
"Generic File Loading") when this element is set.  defaultLibBundleDir has to be set to APP-INF/lib
since this is the magic library folder for WebLogic.
> The patch adds a parameter to prevent setting library-directory for cases like this.

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