Mirah ClassLoader fixen

mirah_class_loader.mirah

import java.security.SecureClassLoader
import java.lang.ClassLoader
import java.util.Map
import java.nio.charset.Charset

class MirahClassLoader < SecureClassLoader
  def initialize(parent:ClassLoader, class_map:Map)
    super(parent)
    @class_map = class_map
  end

  def findClass(name)
    if @class_map[name]
      bytes = String(@class_map[name]).getBytes "ISO-8859-1"
      defineClass(name, bytes, 0, bytes.length)
    else
      raise ClassNotFoundException.new(name)
    end
  end

  def loadClass(name, resolve)
    cls = findLoadedClass(name)
    if cls.nil?
      if @class_map[name]
        cls = findClass(name)
      else
        cls = super(name, false)
      end
    end

    resolveClass(cls) if resolve

    cls
  end
end

ruby_class_loader.rb

class ClassLoader < java::security::SecureClassLoader
  def initialize(parent, class_map)
    super(parent)
    @class_map = class_map
  end

  def findClass(name)
    if @class_map[name]
      bytes = @class_map[name].to_java_bytes
      defineClass(name, bytes, 0, bytes.length)
    else
      raise java.lang.ClassNotFoundException.new(name)
    end
  end

  def loadClass(name, resolve)
    cls = findLoadedClass(name)
    if cls.nil?
      if @class_map[name]
        cls = findClass(name)
      else
        cls = super(name, false)
      end
    end

    resolveClass(cls) if resolve

    cls
  end
end

snag

NativeException: java.lang.ClassFormatError: Incompatible magic value 4022320623 in class file Script1315875556881086000
    java/lang/ClassLoader.java:-2:in `defineClass1'
    java/lang/ClassLoader.java:631:in `defineClassCond'
    java/lang/ClassLoader.java:615:in `defineClass'
    java/lang/ClassLoader.java:465:in `defineClass'
    org/mirah/class_loader.mirah:33:in `findClass'
    org/mirah/class_loader.mirah:44:in `loadClass'
    java/lang/ClassLoader.java:247:in `loadClass'
    /.../mirah/test/jvm/bytecode_test_helper.rb:121:in `generate_classes'