Java class loading problem at YAML::load when using "rest_client" gem
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Key: JRUBY-4986
URL: http://jira.codehaus.org/browse/JRUBY-4986
Project: JRuby
Issue Type: Bug
Components: Java Integration
Affects Versions: JRuby 1.5.1
Environment: jruby 1.5.1 (ruby 1.8.7 patchlevel 249) (2010-06-06
f3a3480) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_20) [x86_64-java]
rest-client-1.0.3
java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02-279-10M3065)
Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01-279, mixed mode)
Reporter: Tobias Vogele
There is a strange exception at {{YAML::load}}, when:
* gem "rest_client" is loaded
* java.net.URI class is not loaded yet
* YAML text encodes a java.net.URI object
Here some code snippets to reproduce the problem:
{code:title=Works, because no rest_client gem is used}
require "rubygems"
require "yaml"
YAML::load("--- !ruby/object:Java::JavaNet::URI {}")
{code}
{code:title=Works, because java.net.URI is loaded explicitly}
require "rubygems"
require "rest_client"
require "yaml"
Java::JavaNet::URI.new("http://www.example.com";) # load the java.net.URI class
YAML::load("--- !ruby/object:Java::JavaNet::URI {}")
{code}
{code:title=throws exception}
require "rubygems"
require "rest_client"
require "yaml"
YAML::load("--- !ruby/object:Java::JavaNet::URI {}")
{code}
This is the complete stacktrace of the exception:
{noformat}
Resolver.java:126:in `transfer': java.lang.ClassCastException:
org.jruby.RubyModule cannot be cast to org.jruby.RubyClass
from
org/yecht/ruby/Resolver$s_method_2_0$RUBYINVOKER$transfer.gen:65535:in `call'
from JavaMethod.java:987:in `call'
from RubyClass.java:644:in `finvoke'
from RuntimeHelpers.java:461:in `invoke'
from RubyBasicObject.java:340:in `callMethod'
from DefaultResolver.java:456:in `node_import'
from
org/yecht/ruby/DefaultResolver$s_method_1_0$RUBYINVOKER$node_import.gen:65535:in
`call'
from CachingCallSite.java:309:in `cacheAndCall'
from CachingCallSite.java:148:in `call'
from RubyLoadHandler.java:40:in `handle'
from Parser.java:300:in `addNode'
from DefaultYAMLParser.java:365:in `yyparse'
from Parser.java:290:in `yechtparse'
from Parser.java:284:in `parse'
from YParser.java:152:in `load'
from org/yecht/ruby/YParser$s_method_0_1$RUBYINVOKER$load.gen:65535:in
`call'
from JavaMethod.java:630:in `call'
from DynamicMethod.java:186:in `call'
from CachingCallSite.java:309:in `cacheAndCall'
from CachingCallSite.java:148:in `call'
from CallOneArgNode.java:57:in `interpret'
from LocalAsgnNode.java:123:in `interpret'
from NewlineNode.java:104:in `interpret'
from InterpretedMethod.java:180:in `call'
from DefaultMethod.java:172:in `call'
from CachingCallSite.java:309:in `cacheAndCall'
from CachingCallSite.java:148:in `call'
from yamltest.rb:4:in `__file__'
from yamltest.rb:-1:in `load'
from Ruby.java:685:in `runScript'
from Ruby.java:568:in `runNormally'
from Ruby.java:414:in `runFromMain'
from Main.java:286:in `run'
from Main.java:128:in `run'
from Main.java:97:in `main'
{noformat}
Note, that "works" here just means, that no exception is thrown. There is still
the problem of JRUBY-4888.
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