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https://issues.apache.org/jira/browse/SOLR-1419?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Noble Paul closed SOLR-1419.
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Resolution: Invalid
Do not drop your plugins in the system classpath . it WILL NOT WORK. it can
work only if your solr internal classes are also loaded by system classpath.
drop your jars in the $solr.home/lib dir
> Solr won't load filters from parent class loader, and the resulting error
> stacktrace is very confusing
> ------------------------------------------------------------------------------------------------------
>
> Key: SOLR-1419
> URL: https://issues.apache.org/jira/browse/SOLR-1419
> Project: Solr
> Issue Type: Bug
> Components: search
> Affects Versions: 1.3
> Reporter: Benson Margulies
>
> I specified a token filter class in my schema, and provided that class in a
> jar file in the system classpath of my jetty instance instead of in
> WEB-INF/lib of my solr webapp.
> This did not work.
> To make matters odder, the logged error did not mention my filter, but rather
> an internal solr interface:
> Caused by: java.lang.ClassNotFoundException:
> org.apache.solr.util.plugin.ResourceLoaderAware
> at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:319)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:254)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:399)
> I note in passing that the token filter in turn uses other classes which
> stayed happily behind in the outer classloader after moved the immediate
> filter class into the webapp.
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