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diff --git a/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java b/ruby/src/main/java/com/google/protobuf/jruby/RubyProtobuf.java
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+/*
+ * Protocol Buffers - Google's data interchange format
+ * Copyright 2014 Google Inc.  All rights reserved.
+ * https://developers.google.com/protocol-buffers/
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.google.protobuf.jruby;
+
+import org.jruby.Ruby;
+import org.jruby.RubyModule;
+import org.jruby.anno.JRubyMethod;
+import org.jruby.anno.JRubyModule;
+import org.jruby.runtime.ThreadContext;
+import org.jruby.runtime.builtin.IRubyObject;
+
+@JRubyModule(name = "Protobuf")
+public class RubyProtobuf {
+
+    public static void createProtobuf(Ruby runtime) {
+        RubyModule mGoogle = runtime.getModule("Google");
+        RubyModule mProtobuf = mGoogle.defineModuleUnder("Protobuf");
+        mProtobuf.defineAnnotatedMethods(RubyProtobuf.class);
+    }
+
+    /*
+     * call-seq:
+     *     Google::Protobuf.encode(msg) => bytes
+     *
+     * Encodes the given message object to protocol buffers wire format. This is an
+     * alternative to the #encode method on msg's class.
+     */
+    @JRubyMethod(meta = true)
+    public static IRubyObject encode(ThreadContext context, IRubyObject self, IRubyObject message) {
+        return RubyMessage.encode(context, message.getMetaClass(), message);
+    }
+
+    /*
+     * call-seq:
+     *     Google::Protobuf.decode(class, bytes) => msg
+     *
+     * Decodes the given bytes as protocol buffers wire format under the
+     * interpretation given by the given class's message definition. This is an
+     * alternative to the #decode method on the given class.
+     */
+    @JRubyMethod(meta = true)
+    public static IRubyObject decode(ThreadContext context, IRubyObject self, IRubyObject klazz, IRubyObject message) {
+        return RubyMessage.decode(context, klazz, message);
+    }
+
+    /*
+     * call-seq:
+     *     Google::Protobuf.encode_json(msg) => json_string
+     *
+     * Encodes the given message object to its JSON representation. This is an
+     * alternative to the #encode_json method on msg's class.
+     */
+    @JRubyMethod(name = "encode_json", meta = true)
+    public static IRubyObject encodeJson(ThreadContext context, IRubyObject self, IRubyObject message) {
+        return RubyMessage.encodeJson(context, message.getMetaClass(), message);
+    }
+
+    /*
+     * call-seq:
+     *     Google::Protobuf.decode_json(class, json_string) => msg
+     *
+     * Decodes the given JSON string under the interpretation given by the given
+     * class's message definition. This is an alternative to the #decode_json method
+     * on the given class.
+     */
+    @JRubyMethod(name = "decode_json", meta = true)
+    public static IRubyObject decodeJson(ThreadContext context, IRubyObject self, IRubyObject klazz, IRubyObject message) {
+        return RubyMessage.decodeJson(context, klazz, message);
+    }
+
+    /*
+     * call-seq:
+     *     Google::Protobuf.deep_copy(obj) => copy_of_obj
+     *
+     * Performs a deep copy of either a RepeatedField instance or a message object,
+     * recursively copying its members.
+     */
+    @JRubyMethod(name = "deep_copy", meta = true)
+    public static IRubyObject deepCopy(ThreadContext context, IRubyObject self, IRubyObject message) {
+        if (message instanceof RubyMessage) {
+            return ((RubyMessage) message).deepCopy(context);
+        } else if (message instanceof RubyRepeatedField) {
+            return ((RubyRepeatedField) message).deepCopy(context);
+        } else {
+            return ((RubyMap) message).deepCopy(context);
+        }
+    }
+}