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

• Type: Bug
• Status: Reopened
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.4
• Fix Version/s: 4.9, 6.0

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)

• Assignee: Unassigned
• Reporter: Shawn Heisey
• Created: 23/May/13 04:46
• Updated: 09/May/16 18:45

Description

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.

Issue Links

• Is contained by: SOLR-4910 solr.xml persistence is completely broken
• is related to: SOLR-6188 solr.ICUFoldingFilterFactory causes NoClassDefFoundError: o/a/l/a/icu/ICUFoldingFilter
• relates to: SOLR-7771 Classloader problem with "solr.XXX" class names and jars in SOLR_HOME/lib