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Editorial Team
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Asked: 2026-05-22T14:58:43+00:00

While trying to deploy a JRuby/Rails Application to a Weblogic 10.3 (Solaris Zone) container

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While trying to deploy a JRuby/Rails Application to a Weblogic 10.3 (Solaris Zone) container it always encounters this exception:

org.jruby.rack.RackInitializationException: library `fcntl' could not be loaded: java.lang.NullPointerException
from /xyz/war/WEB-INF/gems/gems/activesupport-3.0.6/lib/active_support/dependencies.rb:239:in `require'
from /xyz/war/WEB-INF/gems/gems/activesupport-3.0.6/lib/active_support/dependencies.rb:225:in `load_dependency'
from /xyz/war/WEB-INF/gems/gems/activesupport-3.0.6/lib/active_support/dependencies.rb:596:in `new_constants_in'
from /xyz/war/WEB-INF/gems/gems/activesupport-3.0.6/lib/active_support/dependencies.rb:225:in `load_dependency'
from /xyz/war/WEB-INF/gems/gems/activesupport-3.0.6/lib/active_support/dependencies.rb:239:in `require'
from /xyz/war/WEB-INF/gems/gems/jruby-openssl-0.7.3/lib/openssl/ssl.rb:19:in `(root)'
from org/jruby/RubyKernel.java:1038:in `require'
[..snip...]

It just don’t get it why JRuby fails to load this core library. It seems somehow Solaris related, because installing WLS on MacOS X and deploying locally works without any issues.

Any hints, or pointers where I can look next – or how to solve this issue?

UPDATE:
Probably a bug (got feedback in IRC/#jruby now tracked in JRuby JIRA, see: http://jira.codehaus.org/browse/JRUBY-5753

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1 Answer

  1. Editorial Team

    I solved this issue by adding -d32 to JAVA_OPTS, to force the use of a 32-bit JVM.

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