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# # The following statement executes a Java class that uses XMLDecoder to instantiate # a class from an XMLEncoded xml file. I have required the jar that has the class being # instantiated. I can create an instance of the class directly however when I execute # this code I get a ClassNotFoundException. # bundleManager.addBundles(configUrl.openStream) java.lang.ClassNotFoundException: net.sf.sail.core.service.impl.CurnitUrlProviderImpl # # I think the reason is because XMLDecoder uses a thread context classloader # and bypasses the JRuby class loader. # # Some forensics: # # make a new instance of a random class I loaded from a jar I required # b = SailCoreBundle::BundleManager.new # => #<Java::NetSfSailCoreBundle::BundleManager:0x3c43e5 @java_object=net.sf.sail.core.bundle.BundleManager@8d9a14> # # get the JRuby classloader # jcl = b.getClass.getClassLoader # => #<Java::OrgJrubyUtil::JRubyClassLoader:0xe646e8 @java_object=org.jruby.util.JRubyClassLoader@33788d> # # get the current thread # t = java.lang.Thread.currentThread # => #<Java::JavaLang::Thread:0xdd7c4b @java_object=Thread[main,5,main]> # # get the thread context classloader # tcl = t.getContextClassLoader # => #<#<Class:01xc901e4>:0x9b3c58 @java_object=sun.misc.Launcher$AppClassLoader@a9c85c> # # the thread context classloader is the parent of the JRuby classloader # jcl.getParent == tcl # => true

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