https://github.com/jruby/jruby/jruby-core: JRuby is the effort to recreate the Ruby (https://www.ruby-lang.org) interpreter in Java. (JRuby)
  • headius
  • enebo
  • wmeissner
  • BanzaiMan
  • mkristian 
package org.jruby.java.invokers;

import java.lang.reflect.Field;

import org.jruby.RubyModule;
import org.jruby.javasupport.JavaUtil;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;

public class InstanceFieldGetter extends FieldMethodZero {

    public InstanceFieldGetter(String name, RubyModule host, Field field) {
        super(name, host, field);
    }

    @Override
    public final IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name) {
        try {
            return JavaUtil.convertJavaToUsableRubyObject(context.runtime, field.get(retrieveTarget(self)));
        }
        catch (IllegalAccessException ex) { return handleGetException(context.runtime, ex); }
    }
}