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NativeException: java.lang.NullPointerException: null
    RubyNumeric.java:154:in `org.jruby.RubyNumeric.num2long'
    Pack.java:1587:in `org.jruby.util.Pack.pack'
    RubyArray.java:2209:in `org.jruby.RubyArray.pack'
    null:-1:in `org.jruby.RubyArrayInvokerpack1.call'
    FastInvocationCallback.java:49:in `org.jruby.runtime.callback.FastInvocationCallback.execute'
    SimpleCallbackMethod.java:80:in `org.jruby.internal.runtime.methods.SimpleCallbackMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:417:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:312:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    AliasMethod.java:75:in `org.jruby.internal.runtime.methods.AliasMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:1296:in `org.jruby.RubyObject.send'
    null:-1:in `org.jruby.RubyObjectInvokersendxx1.call'
    InvocationCallback.java:49:in `org.jruby.runtime.callback.InvocationCallback.execute'
    FullFunctionCallbackMethod.java:77:in `org.jruby.internal.runtime.methods.FullFunctionCallbackMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:417:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:312:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:935:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1195:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:382:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:456:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:301:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:417:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:312:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1796:in `org.jruby.evaluator.EvaluationState.setupArgs'
    EvaluationState.java:740:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:1296:in `org.jruby.RubyObject.send'
    null:-1:in `org.jruby.RubyObjectInvokersendxx1.call'
    InvocationCallback.java:49:in `org.jruby.runtime.callback.InvocationCallback.execute'
    FullFunctionCallbackMethod.java:77:in `org.jruby.internal.runtime.methods.FullFunctionCallbackMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    AliasMethod.java:75:in `org.jruby.internal.runtime.methods.AliasMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:746:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1195:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:716:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    EvaluateCallable.java:58:in `org.jruby.internal.runtime.methods.EvaluateCallable.call'
    Block.java:217:in `org.jruby.runtime.Block.yield'
    ThreadContext.java:405:in `org.jruby.runtime.ThreadContext.yield'
    RubyArray.java:1195:in `org.jruby.RubyArray.each'
    null:-1:in `org.jruby.RubyArrayInvokereach0.call'
    InvocationCallback.java:49:in `org.jruby.runtime.callback.InvocationCallback.execute'
    FullFunctionCallbackMethod.java:77:in `org.jruby.internal.runtime.methods.FullFunctionCallbackMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    EvaluateCallable.java:58:in `org.jruby.internal.runtime.methods.EvaluateCallable.call'
    Block.java:217:in `org.jruby.runtime.Block.yield'
    ThreadContext.java:405:in `org.jruby.runtime.ThreadContext.yield'
    RubyArray.java:1195:in `org.jruby.RubyArray.each'
    null:-1:in `org.jruby.RubyArrayInvokereach0.call'
    InvocationCallback.java:49:in `org.jruby.runtime.callback.InvocationCallback.execute'
    FullFunctionCallbackMethod.java:77:in `org.jruby.internal.runtime.methods.FullFunctionCallbackMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1264:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:390:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:1426:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1264:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1264:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:417:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:312:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:301:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:417:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:312:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1796:in `org.jruby.evaluator.EvaluationState.setupArgs'
    EvaluationState.java:740:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    EvaluateCallable.java:58:in `org.jruby.internal.runtime.methods.EvaluateCallable.call'
    Block.java:217:in `org.jruby.runtime.Block.yield'
    Block.java:181:in `org.jruby.runtime.Block.call'
    RubyProc.java:123:in `org.jruby.RubyProc.call'
    RubyProc.java:104:in `org.jruby.RubyProc.call'
    Ruby.java:1302:in `org.jruby.Ruby.tearDown'
    Main.java:236:in `org.jruby.Main.runInterpreter'
    Main.java:189:in `org.jruby.Main.runInterpreter'
    Main.java:120:in `org.jruby.Main.run'
    RubyKernel.java:987:in `org.jruby.RubyKernel$InProcessScript.run'
    RubyNumeric.java:154:in `org.jruby.RubyNumeric.num2long'
    Pack.java:1587:in `org.jruby.util.Pack.pack'
    RubyArray.java:2209:in `org.jruby.RubyArray.pack'
    null:-1:in `org.jruby.RubyArrayInvokerpack1.call'
    FastInvocationCallback.java:49:in `org.jruby.runtime.callback.FastInvocationCallback.execute'
    SimpleCallbackMethod.java:80:in `org.jruby.internal.runtime.methods.SimpleCallbackMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:417:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:312:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    AliasMethod.java:75:in `org.jruby.internal.runtime.methods.AliasMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:1296:in `org.jruby.RubyObject.send'
    null:-1:in `org.jruby.RubyObjectInvokersendxx1.call'
    InvocationCallback.java:49:in `org.jruby.runtime.callback.InvocationCallback.execute'
    FullFunctionCallbackMethod.java:77:in `org.jruby.internal.runtime.methods.FullFunctionCallbackMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:417:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:312:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:935:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1195:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:382:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:456:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:301:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:417:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:312:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1796:in `org.jruby.evaluator.EvaluationState.setupArgs'
    EvaluationState.java:740:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:1296:in `org.jruby.RubyObject.send'
    null:-1:in `org.jruby.RubyObjectInvokersendxx1.call'
    InvocationCallback.java:49:in `org.jruby.runtime.callback.InvocationCallback.execute'
    FullFunctionCallbackMethod.java:77:in `org.jruby.internal.runtime.methods.FullFunctionCallbackMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    AliasMethod.java:75:in `org.jruby.internal.runtime.methods.AliasMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:746:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1195:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:716:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    EvaluateCallable.java:58:in `org.jruby.internal.runtime.methods.EvaluateCallable.call'
    Block.java:217:in `org.jruby.runtime.Block.yield'
    ThreadContext.java:405:in `org.jruby.runtime.ThreadContext.yield'
    RubyArray.java:1195:in `org.jruby.RubyArray.each'
    null:-1:in `org.jruby.RubyArrayInvokereach0.call'
    InvocationCallback.java:49:in `org.jruby.runtime.callback.InvocationCallback.execute'
    FullFunctionCallbackMethod.java:77:in `org.jruby.internal.runtime.methods.FullFunctionCallbackMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    EvaluateCallable.java:58:in `org.jruby.internal.runtime.methods.EvaluateCallable.call'
    Block.java:217:in `org.jruby.runtime.Block.yield'
    ThreadContext.java:405:in `org.jruby.runtime.ThreadContext.yield'
    RubyArray.java:1195:in `org.jruby.RubyArray.each'
    null:-1:in `org.jruby.RubyArrayInvokereach0.call'
    InvocationCallback.java:49:in `org.jruby.runtime.callback.InvocationCallback.execute'
    FullFunctionCallbackMethod.java:77:in `org.jruby.internal.runtime.methods.FullFunctionCallbackMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1264:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:390:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:1426:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1264:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1264:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:417:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:312:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:301:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:395:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:321:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:280:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    DefaultMethod.java:157:in `org.jruby.internal.runtime.methods.DefaultMethod.internalCall'
    AbstractMethod.java:64:in `org.jruby.internal.runtime.methods.AbstractMethod.call'
    DefaultMethod.java:113:in `org.jruby.internal.runtime.methods.DefaultMethod.call'
    RubyObject.java:473:in `org.jruby.RubyObject.callMethod'
    RubyObject.java:417:in `org.jruby.RubyObject.callMethod'
    EvaluationState.java:312:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:1796:in `org.jruby.evaluator.EvaluationState.setupArgs'
    EvaluationState.java:740:in `org.jruby.evaluator.EvaluationState.evalInternal'
    EvaluationState.java:158:in `org.jruby.evaluator.EvaluationState.eval'
    EvaluateCallable.java:58:in `org.jruby.internal.runtime.methods.EvaluateCallable.call'
    Block.java:217:in `org.jruby.runtime.Block.yield'
    Block.java:181:in `org.jruby.runtime.Block.call'
    RubyProc.java:123:in `org.jruby.RubyProc.call'
    RubyProc.java:104:in `org.jruby.RubyProc.call'
    Ruby.java:1302:in `org.jruby.Ruby.tearDown'
    Main.java:236:in `org.jruby.Main.runInterpreter'
    Main.java:189:in `org.jruby.Main.runInterpreter'
    Main.java:120:in `org.jruby.Main.run'
    RubyKernel.java:987:in `org.jruby.RubyKernel$InProcessScript.run'
    /Users/headius/NetBeansProjects/rails/activesupport/./test/../lib/active_support/multibyte/chars.rb:81:in `send'
    /Users/headius/NetBeansProjects/rails/activesupport/./test/../lib/active_support/multibyte/chars.rb:81:in `method_missing'
    /Users/headius/NetBeansProjects/rails/activesupport/lib/active_support/core_ext/string/access.rb:43:in `first'
    ./test/core_ext/hash_ext_test.rb:292:in `test_two_levels_with_second_level_overriding_to_xml'