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POJRuby failing to coerce a type to itself when calling java from ruby
 

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  1. POJRuby failing to coerce a type to itself when calling java from ruby
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    <p>I'm trying to interface with java classes in a server to use them with ruby, and I need to provide callback classes. Unfortunately, JRuby seems to be trying to coerce a type to itself, and I don't understand why it's doing this and failing trying to do so.</p> <p>I have the following method in ruby</p> <pre><code>def registerEvent(id, type, priority = :normal, ignoreCancelled = false, &amp;handler) fullClassName = "org.bukkit.event." + type.join(".") fullType = java.lang.Class.forName fullClassName eventHandler = net.connorcpu.plugscript.EventHandler.new eventHandler.setHandlerId id eventHandler.setPriority matchToEnum(priority.to_s, org.bukkit.event.EventPriority) eventHandler.setEventType fullType eventHandler.setIgnoreCancelled ignoreCancelled handlerWrapper = EventExecutorWrapper.new(self, handler) eventHandler.setExecutor handlerWrapper puts eventHandler.java_class.to_s $context.registerEvent eventHandler # line 44 from the stacktrace return eventHandler end </code></pre> <p>Being used like this</p> <pre><code>registerEvent( "edit the quit message because reasons", [:player, :PlayerQuitEvent] ) {|event| puts 'test message' } </code></pre> <p>And when I try to use it, I'm getting the following stacktrace</p> <pre><code>[21:34:05 WARN]: TypeError: failed to coerce net.connorcpu.plugscript.EventHandler to net.connorcpu.plugscript.EventHandler registerEvent at &lt;script&gt;:44 (root) at &lt;script&gt;:1 run at SourceFile:617 [21:34:05 ERROR]: [PlugScript] [PlugScript] An exception occurred initializing the script file .\plugins\dev.rb javax.script.ScriptException: org.jruby.embed.EvalFailedException: (TypeError) failed to coerce net.connorcpu.plugscript.EventHandler to net.connorcpu.plugscript.EventHandler at org.jruby.embed.jsr223.JRubyEngine.wrapException(JRubyEngine.java:104) ~[jruby.jar:?] at org.jruby.embed.jsr223.JRubyEngine.eval(JRubyEngine.java:121) ~[jruby.jar:?] at org.jruby.embed.jsr223.JRubyEngine.eval(JRubyEngine.java:146) ~[jruby.jar:?] at net.connorcpu.plugscript.ScriptedPlugin.reloadScript(ScriptedPlugin.java:46) [PlugScript.jar:?] at net.connorcpu.plugscript.PlugScript.loadRubyEngines(PlugScript.java:149) [PlugScript.jar:?] at net.connorcpu.plugscript.PlugScript.onEnable(PlugScript.java:47) [PlugScript.jar:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:218) [spigot.jar:git-Spigot-1207] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:457) [spigot.jar:git-Spigot-1207] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:385) [spigot.jar:git-Spigot-1207] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugin(CraftServer.java:302) [spigot.jar:git-Spigot-1207] at org.bukkit.craftbukkit.v1_7_R1.CraftServer.enablePlugins(CraftServer.java:284) [spigot.jar:git-Spigot-1207] at net.minecraft.server.v1_7_R1.MinecraftServer.m(MinecraftServer.java:348) [spigot.jar:git-Spigot-1207] at net.minecraft.server.v1_7_R1.MinecraftServer.g(MinecraftServer.java:325) [spigot.jar:git-Spigot-1207] at net.minecraft.server.v1_7_R1.MinecraftServer.a(MinecraftServer.java:281) [spigot.jar:git-Spigot-1207] at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:184) [spigot.jar:git-Spigot-1207] at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:430) [spigot.jar:git-Spigot-1207] at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [spigot.jar:git-Spigot-1207] Caused by: org.jruby.embed.EvalFailedException: (TypeError) failed to coerce net.connorcpu.plugscript.EventHandler to net.connorcpu.plugscript.EventHandler at org.jruby.embed.internal.EmbedEvalUnitImpl.run(EmbedEvalUnitImpl.java:133) ~[jruby.jar:?] at org.jruby.embed.jsr223.JRubyEngine.eval(JRubyEngine.java:118) ~[jruby.jar:?] ... 15 more Caused by: org.jruby.exceptions.RaiseException: (TypeError) failed to coerce net.connorcpu.plugscript.EventHandler to net.connorcpu.plugscript.EventHandler at RUBY.registerEvent(&lt;script&gt;:44) ~[?:?] at RUBY.(root)(&lt;script&gt;:1) ~[?:?] ... 1 more </code></pre> <p>Thank you for any help on this, I've been stumped on this for a while.</p>
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    1. USConnie Hilarides
    1. USConnie Hilarides
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    1. COwhat is this `$context` thing and what version of JRuby is this ?
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      1. USkares
    2. COThis is the latest version of JRuby, and $context is an instance of one of my classes in java. the registerEvent method has this signature: void registerEvent(EventHandler)
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      1. POJRuby failing to coerce a type to itself when calling java from ruby
      1. USConnie Hilarides
 

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