JRuby: Rails fails to start because of Rhino::JSError: [ruby LoadError]

[mindscratch]

I'm using JRuby to create a new Rails 3.1.3 application which depends on the less-rails-bootstrap gem and therubyrhino (2.0.0).

I've created a view (home/index.html.erb) that just has a single <p> element and the root route points to home#index.

When I try to start Rails, I get the following (I can't copy and paste this so I'm typing some out):

Rhino::JSError: [ruby LoadError]
    call at /home/me/.rvm/gems/jruby-1.6.7@futz/gems/therubyrhino-2.0.0/lib/rhino/rhino_ext.rb:170
    call at /home/me/.rvm/gems/jruby-1.6.7@futz/gems/commonjs-0.2.6/lib/commonjs/environment.rb:18
    call at /home/me/.rvm/gems/jruby-1.6.7@futz/gems/less-2.2.1/lib/less/loader.rb:22
    call at /home/me/.rvm/gems/jruby-1.6.7@futz/gems/less-2.2.1/lib/less.rb:15
    call at /home/me/.rvm/gems/jruby-1.6.7@futz/gems/less-2.2.1/lib/less.rb:9

Output from gem env

- RUBYGEMS VERSION: 1.8.15
- RUBY VERSION: 1.9.2 (2012-02-22 patchlevel 312) [java]
- RUBYGEMS PLATFORMS:
    - ruby
    - universal-java-1.6

I think that's all the relevant bits.

[kares]

it seems to be missing a file to be loaded - I failed to reproduce this with a quick try. could you please setup a minimal rails application where we can reproduce this ?

[mindscratch]

I'll give it a shot this evening and post back a link to the app.

[mindscratch]

I've created an application that reproduces the problem: https://github.com/mindscratch/therubyrhino-issue-25

[kares]

thanks, there seems to be some kind of regression - until resolved the previous version seems to work fine, just :

gem 'therubyrhino', '1.73.5'

[kares]

2.0.0 works as well but not with the latest rhino.jar :

gem 'therubyrhino', '2.0.0'
gem 'therubyrhino_jar', '1.7.3'

latest version for _therubyrhinojar is 1.7.4 where the only difference is the updated Rhino's js.jar to the latest 1.7R4 release. error appears updating gem 'therubyrhino_jar', '1.7.4' thus it's either a :

• Rhino (Java) regression - hard to tell since there's ton of commits
• JRuby Java integration issue - can't handle the updated Java code the same

I've built Rhino's jar from master - same error. I've also tried jruby-head (1.7) - still same error. This is going to take some time, for the record here's the relevant Java stack trace :

#<NativeException: org.jruby.proxy.org.mozilla.javascript.JavaScriptException$Proxy2: [object LoadError]>
sun/reflect/NativeConstructorAccessorImpl.java:-2:in `newInstance0'
sun/reflect/NativeConstructorAccessorImpl.java:39:in `newInstance'
sun/reflect/DelegatingConstructorAccessorImpl.java:27:in `newInstance'
java/lang/reflect/Constructor.java:513:in `newInstance'
org/jruby/javasupport/proxy/JavaProxyConstructor.java:101:in `newInstance'
org/jruby/javasupport/proxy/JavaProxyConstructor.java:241:in `newInstance'
org/jruby/javasupport/Java.java:757:in `call'
org/jruby/internal/runtime/methods/JavaMethod.java:630:in `call'
org/jruby/runtime/callsite/CachingCallSite.java:322:in `cacheAndCall'
org/jruby/runtime/callsite/CachingCallSite.java:178:in `callBlock'
org/jruby/runtime/callsite/CachingCallSite.java:182:in `call'
org/jruby/java/proxies/ConcreteJavaProxy.java:47:in `call'
org/jruby/runtime/callsite/SuperCallSite.java:366:in `cacheAndCall'
org/jruby/runtime/callsite/SuperCallSite.java:192:in `callBlock'
org/jruby/runtime/callsite/SuperCallSite.java:197:in `call'
org/jruby/runtime/callsite/SuperCallSite.java:108:in `callVarargs'
org/jruby/ast/SuperNode.java:114:in `interpret'
org/jruby/ast/NewlineNode.java:104:in `interpret'
org/jruby/evaluator/ASTInterpreter.java:74:in `INTERPRET_METHOD'
org/jruby/internal/runtime/methods/InterpretedMethod.java:212:in `call'
org/jruby/internal/runtime/methods/DefaultMethod.java:207:in `call'
org/jruby/runtime/callsite/CachingCallSite.java:322:in `cacheAndCall'
org/jruby/runtime/callsite/CachingCallSite.java:178:in `callBlock'
org/jruby/runtime/callsite/CachingCallSite.java:182:in `call'
org/jruby/RubyClass.java:829:in `newInstance'
org/jruby/RubyClass$i$newInstance.gen:65535:in `call'
org/jruby/internal/runtime/methods/JavaMethod.java:266:in `call'
org/jruby/java/proxies/ConcreteJavaProxy.java:143:in `call'
org/jruby/runtime/callsite/CachingCallSite.java:312:in `cacheAndCall'
org/jruby/runtime/callsite/CachingCallSite.java:169:in `call'
org/jruby/ast/CallOneArgNode.java:57:in `interpret'
org/jruby/ast/NewlineNode.java:104:in `interpret'
org/jruby/evaluator/ASTInterpreter.java:74:in `INTERPRET_METHOD'
org/jruby/internal/runtime/methods/InterpretedMethod.java:190:in `call'
org/jruby/internal/runtime/methods/DefaultMethod.java:199:in `call'
org/jruby/runtime/callsite/CachingCallSite.java:312:in `cacheAndCall'
org/jruby/runtime/callsite/CachingCallSite.java:169:in `call'
org/jruby/ast/CallOneArgNode.java:57:in `interpret'
org/jruby/ast/FCallOneArgNode.java:36:in `interpret'
org/jruby/ast/NewlineNode.java:104:in `interpret'
org/jruby/ast/BlockNode.java:71:in `interpret'
org/jruby/ast/RescueBodyNode.java:108:in `interpret'
org/jruby/ast/RescueNode.java:181:in `handleException'
org/jruby/ast/RescueNode.java:124:in `interpretWithJavaExceptions'
org/jruby/ast/RescueNode.java:110:in `interpret'
org/jruby/ast/BeginNode.java:83:in `interpret'
org/jruby/ast/NewlineNode.java:104:in `interpret'
org/jruby/ast/BlockNode.java:71:in `interpret'
org/jruby/evaluator/ASTInterpreter.java:74:in `INTERPRET_METHOD'
org/jruby/internal/runtime/methods/InterpretedMethod.java:120:in `call'
org/jruby/internal/runtime/methods/InterpretedMethod.java:134:in `call'
org/jruby/internal/runtime/methods/DefaultMethod.java:174:in `call'
org/jruby/javasupport/proxy/JavaProxyConstructor.java:225:in `invoke'
org.jruby.proxy.org.mozilla.javascript.BaseFunction$Proxy1:-1:in `call'
org/mozilla/javascript/Interpreter.java:1473:in `interpretLoop'
org/mozilla/javascript/Interpreter.java:815:in `interpret'
org/mozilla/javascript/InterpretedFunction.java:109:in `call'
org/mozilla/javascript/NativeArray.java:1589:in `iterativeMethod'
org/mozilla/javascript/NativeArray.java:318:in `execIdCall'
org/mozilla/javascript/IdFunctionObject.java:97:in `call'
org/mozilla/javascript/Interpreter.java:1473:in `interpretLoop'
org/mozilla/javascript/Interpreter.java:815:in `interpret'
org/mozilla/javascript/InterpretedFunction.java:109:in `call'
org/mozilla/javascript/ContextFactory.java:394:in `doTopCall'
org/mozilla/javascript/ScriptRuntime.java:3091:in `doTopCall'
org/mozilla/javascript/InterpretedFunction.java:107:in `call'
sun/reflect/NativeMethodAccessorImpl.java:-2:in `invoke0'
sun/reflect/NativeMethodAccessorImpl.java:39:in `invoke'
sun/reflect/DelegatingMethodAccessorImpl.java:25:in `invoke'
java/lang/reflect/Method.java:597:in `invoke'
org/jruby/javasupport/JavaMethod.java:491:in `invokeDirectWithExceptionHandling'
/opt/local/rvm/gems/jruby-1.6.7@therubyrhino/gems/therubyrhino-2.0.0/lib/rhino/rhino_ext.rb:168:in `call'
/opt/local/rvm/gems/jruby-1.6.7@therubyrhino/gems/commonjs-0.2.6/lib/commonjs/environment.rb:18:in `require'
/opt/local/rvm/gems/jruby-1.6.7@therubyrhino/gems/less-2.2.1/lib/less/loader.rb:22:in `require'
/opt/local/rvm/gems/jruby-1.6.7@therubyrhino/gems/less-2.2.1/lib/less.rb:15:in `Less'
/opt/local/rvm/gems/jruby-1.6.7@therubyrhino/gems/less-2.2.1/lib/less.rb:9:in `(root)'
org/jruby/RubyKernel.java:1042:in `require'
/opt/local/rvm/gems/jruby-1.6.7@therubyrhino/gems/less-2.2.1/lib/less.rb:68:in `require'
org/jruby/RubyArray.java:1615:in `each'
/opt/local/rvm/gems/jruby-1.6.7@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:66:in `require'
org/jruby/RubyArray.java:1615:in `each'
/opt/local/rvm/gems/jruby-1.6.7@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:55:in `require'
/opt/local/rvm/gems/jruby-1.6.7@global/gems/bundler-1.1.4/lib/bundler.rb:119:in `require'
/home/kares/workspace/github/therubyrhino/._issue-25/config/application.rb:11:in `(root)'
org/jruby/RubyKernel.java:1042:in `require'
/home/kares/workspace/github/therubyrhino/._issue-25/config/application.rb:53:in `(root)'
org/jruby/RubyKernel.java:1787:in `tap'
/opt/local/rvm/gems/jruby-1.6.7@therubyrhino/gems/railties-3.2.8/lib/rails/commands.rb:50:in `(root)'
org/jruby/RubyKernel.java:1042:in `require'
script/rails:6:in `(root)'

[kares]

released 2.0.1 with this regression being fixed - should work with the latest therubyrhino_jar as well. thanks !

[mindscratch]

@kares awesome, thanks for the quick turn around.