MQ jars not loading under Win 64

Ruby JRuby
1

Hi

My exact code , and with the exact IBM jars placed under jruby/lib fail
to do an import of the MQ IBM Jar on Windows 7 64 bit. So i thought
perhaps I was being naive i.e. I did not have to install any .so for mq
client on Mac OS X and thus thought the jars sufficient on Windows.
Therefore I installed the IBM MQ client package for Windows but
unfortunately that had no effect. Jruby still complains about not
finding the java package , see stack below.

It fails on this line i.e. from my jruby code:

import com.ibm.mq.MQQueueManager

which works on Mac OS X.

well full disclosure I have not tested launching if from TorqueBox
within OS X, but on OS X instead Im running on Trinidad. I dont think
that the container should matter unless TB is messing with loadpaths
i.e. Im relying on putting the jars I needed within the jruby/lib
folder.

thanks for the help

-charles

stack:

JBWEB000309: type JBWEB000066: Exception report

JBWEB000068: message org.jruby.exceptions.RaiseException: (NameError)
missing class or uppercase package name (`com.ibm.mq.MQQueueManager’)

JBWEB000069: description JBWEB000145: The server encountered an internal
error that prevented it from fulfilling this request.

JBWEB000070: exception

javax.servlet.ServletException: org.jruby.exceptions.RaiseException:
(NameError) missing class or uppercase package name
(`com.ibm.mq.MQQueueManager’)
org.torquebox.web.servlet.RackFilter.doRack(RackFilter.java:129)
org.torquebox.web.servlet.RackFilter.doFilter(RackFilter.java:108)
org.torquebox.web.servlet.RackFilter.doFilter(RackFilter.java:74)
org.torquebox.web.servlet.SendfileFilter.doFilter(SendfileFilter.java:49)
org.torquebox.web.servlet.SendfileFilter.doFilter(SendfileFilter.java:33)
JBWEB000071: root cause

org.jruby.exceptions.RaiseException: (NameError) missing class or
uppercase package name (`com.ibm.mq.MQQueueManager’)
org.jruby.javasupport.JavaUtilities.get_proxy_or_package_under_package(org/jruby/javasupport/JavaUtilities.java:54)
RUBY.method_missing(file:/C:/torquebox-3.0.0/jruby/lib/jruby.jar!/jruby/java/java_package_module_template.rb:14)
RUBY.(root)(C:/torquebox-3.0.0/jboss/standalone/tmp/vfs/deploymentf5c6fd4ab93531c5/tbxdataproc.knob-d0c62f863d8435ec/mq_manager.rb:7)
org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1054)
RUBY.(root)(C:/torquebox-3.0.0/jboss/standalone/tmp/vfs/deploymentf5c6fd4ab93531c5/tbxdataproc.knob-d0c62f863d8435ec/tb_x_data_processor.rb:1)
org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1054)
RUBY.(root)(C:/torquebox-3.0.0/jboss/standalone/tmp/vfs/deploymentf5c6fd4ab93531c5/tbxdataproc.knob-d0c62f863d8435ec/tb_x_data_processor.rb:4)
org.jruby.RubyBasicObject.instance_eval(org/jruby/RubyBasicObject.java:1735)
RUBY.(root)(C:\torquebox-3.0.0\jboss\standalone\tmp\vfs\deploymentf5c6fd4ab93531c5\tbxdataproc.knob-d0c62f863d8435ec\config.ru:1)
RUBY.(C:\torquebox-3.0.0\jboss\standalone\tmp\vfs\deploymentf5c6fd4ab93531c5\tbxdataproc.knob-d0c62f863d8435ec\config.ru:7)
org.jruby.RubyKernel.eval(org/jruby/RubyKernel.java:1093)
RUBY.initialize(C:/torquebox-3.0.0/jruby/lib/ruby/gems/shared/gems/rack-1.5.2/lib/rack/builder.rb:55)
JBWEB000072: note JBWEB000073: The full stack trace of the root cause is
available in the JBoss Web/7.2.0.Final logs.

JBoss Web/7.2.0.Final

Charles

2

What happens if you put the jars you need under your application’s lib/
directory instead of jruby/lib? TorqueBox, being based on JBoss AS7,
does have some different classloading semantics for Java jars.

Ben

3

Ill try but what if I had multiple apps that used MQ , would not want
that replication? Does TB itself have a centralized place it looks for
JARS ?

thanks

Charles

4

You should be able to put your jars anywhere you want as long as you
require them from Ruby before trying to import or use them.

require ‘/path/to/mq.jar’

Ben

5

sorry for doing this piecemeal

I ran some isolated tests and Im able to do mq puts outside of TorqueBox
via straight jruby i.e.

C:\torquebox-3.0.0\jruby\bin\jruby.exe --1.9 -e
$stdout.sync=true;$stderr.sync=true;load($0=ARGV.shift) --2.0
"C:/Users/Charles M./RubymineProjects/TestMQ/test_mq.rb

TB is using 1.7.4

also tried 1.7.6

and this all works.

So I guess this is pointing to that there is something about the
deployed context with TB that is not making those jars accessible.

Again, would hate to have to co-locate to my apps/lib dir

perhaps force jruby/lib into the loadpath i.e. from within my app ? or
some TB config setting ?

Charles

6

It seems that Torquebox due to its concept of Runtime pools effectively
bypasses/prevents jruby/lib from being in the load path, they provide a
torquebox_init.rb which is ran upon runtime init
so I assume that adding jruby/lib to the load_path there might work.

any reason why that might not be a good idea ?

thanks

Charles