[jira] [Commented] (SOLR-4852) If sharedLib is set to lib, classloader fails to find classes in lib

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[jira] [Commented] (SOLR-4852) If sharedLib is set to lib, classloader fails to find classes in lib

JIRA jira@apache.org

    [ https://issues.apache.org/jira/browse/SOLR-4852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13665170#comment-13665170 ]

Shawn Heisey commented on SOLR-4852:
------------------------------------

[~rcmuir] - thanks.  I did wonder if it might have been buggy before.  Having this issue here for others to find may help someone, even if it's decided that this isn't a bug.

I am a little mystified by the fact that it can't find a class just because it has loaded the jar twice, though.  I am not well-versed in classloader behavior ...  is that expected?

               

> If sharedLib is set to lib, classloader fails to find classes in lib
> --------------------------------------------------------------------
>
>                 Key: SOLR-4852
>                 URL: https://issues.apache.org/jira/browse/SOLR-4852
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 4.4
>         Environment: Linux bigindy5 2.6.32-358.6.1.el6.centos.plus.x86_64 #1 SMP Wed Apr 24 03:21:04 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
> java version "1.7.0_21"
> Java(TM) SE Runtime Environment (build 1.7.0_21-b11)
> Java HotSpot(TM) 64-Bit Server VM (build 23.21-b01, mixed mode)
>            Reporter: Shawn Heisey
>             Fix For: 5.0, 4.4
>
>
> I have some jars in the lib directory under solr.solr.home - DIH, ICU, and MySQL.  If I set sharedLib in solr.xml to "lib" then the ICUTokenizer class is not found, even though the jar is loaded (twice) during Solr startup.  If I set sharedLib to another location that doesn't exist, the jars are only loaded once and there is no problem.
> I'm using the old-style solr.xml on branch_4x revision 1485566.

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