diff --git a/lib/rb/lib/thrift/protocol.rb b/lib/rb/lib/thrift/protocol.rb
index 547b2e4..0e451e1 100644
--- a/lib/rb/lib/thrift/protocol.rb
+++ b/lib/rb/lib/thrift/protocol.rb
@@ -43,121 +43,175 @@
       false
     end
 
-    def write_message_begin(name, type, seqid); nil; end
+    def write_message_begin(name, type, seqid)
+      raise NotImplementedError
+    end
     deprecate! :writeMessageBegin => :write_message_begin
 
     def write_message_end; nil; end
     deprecate! :writeMessageEnd => :write_message_end
 
-    def write_struct_begin(name); nil; end
+    def write_struct_begin(name)
+      raise NotImplementedError
+    end
     deprecate! :writeStructBegin => :write_struct_begin
 
     def write_struct_end; nil; end
     deprecate! :writeStructEnd => :write_struct_end
 
-    def write_field_begin(name, type, id); nil; end
+    def write_field_begin(name, type, id)
+      raise NotImplementedError
+    end
     deprecate! :writeFieldBegin => :write_field_begin
 
     def write_field_end; nil; end
     deprecate! :writeFieldEnd => :write_field_end
 
-    def write_field_stop; nil; end
+    def write_field_stop
+      raise NotImplementedError
+    end
     deprecate! :writeFieldStop => :write_field_stop
 
-    def write_map_begin(ktype, vtype, size); nil; end
+    def write_map_begin(ktype, vtype, size)
+      raise NotImplementedError
+    end
     deprecate! :writeMapBegin => :write_map_begin
 
     def write_map_end; nil; end
     deprecate! :writeMapEnd => :write_map_end
 
-    def write_list_begin(etype, size); nil; end
+    def write_list_begin(etype, size)
+      raise NotImplementedError
+    end
     deprecate! :writeListBegin => :write_list_begin
 
     def write_list_end; nil; end
     deprecate! :writeListEnd => :write_list_end
 
-    def write_set_begin(etype, size); nil; end
+    def write_set_begin(etype, size)
+      raise NotImplementedError
+    end
     deprecate! :writeSetBegin => :write_set_begin
 
     def write_set_end; nil; end
     deprecate! :writeSetEnd => :write_set_end
 
-    def write_bool(bool); nil; end
+    def write_bool(bool)
+      raise NotImplementedError
+    end
     deprecate! :writeBool => :write_bool
 
-    def write_byte(byte); nil; end
+    def write_byte(byte)
+      raise NotImplementedError
+    end
     deprecate! :writeByte => :write_byte
 
-    def write_i16(i16); nil; end
+    def write_i16(i16)
+      raise NotImplementedError
+    end
     deprecate! :writeI16 => :write_i16
 
-    def write_i32(i32); nil; end
+    def write_i32(i32)
+      raise NotImplementedError
+    end
     deprecate! :writeI32 => :write_i32
 
-    def write_i64(i64); nil; end
+    def write_i64(i64)
+      raise NotImplementedError
+    end
     deprecate! :writeI64 => :write_i64
 
-    def write_double(dub); nil; end
+    def write_double(dub)
+      raise NotImplementedError
+    end
     deprecate! :writeDouble => :write_double
 
-    def write_string(str); nil; end
+    def write_string(str)
+      raise NotImplementedError
+    end
     deprecate! :writeString => :write_string
 
-    def read_message_begin; nil; end
+    def read_message_begin
+      raise NotImplementedError
+    end
     deprecate! :readMessageBegin => :read_message_begin
 
     def read_message_end; nil; end
     deprecate! :readMessageEnd => :read_message_end
 
-    def read_struct_begin; nil; end
+    def read_struct_begin
+      raise NotImplementedError
+    end
     deprecate! :readStructBegin => :read_struct_begin
 
     def read_struct_end; nil; end
     deprecate! :readStructEnd => :read_struct_end
 
-    def read_field_begin; nil; end
+    def read_field_begin
+      raise NotImplementedError
+    end
     deprecate! :readFieldBegin => :read_field_begin
 
     def read_field_end; nil; end
     deprecate! :readFieldEnd => :read_field_end
 
-    def read_map_begin; nil; end
+    def read_map_begin
+      raise NotImplementedError
+    end
     deprecate! :readMapBegin => :read_map_begin
 
     def read_map_end; nil; end
     deprecate! :readMapEnd => :read_map_end
 
-    def read_list_begin; nil; end
+    def read_list_begin
+      raise NotImplementedError
+    end
     deprecate! :readListBegin => :read_list_begin
 
     def read_list_end; nil; end
     deprecate! :readListEnd => :read_list_end
 
-    def read_set_begin; nil; end
+    def read_set_begin
+      raise NotImplementedError
+    end
     deprecate! :readSetBegin => :read_set_begin
 
     def read_set_end; nil; end
     deprecate! :readSetEnd => :read_set_end
 
-    def read_bool; nil; end
+    def read_bool
+      raise NotImplementedError
+    end
     deprecate! :readBool => :read_bool
 
-    def read_byte; nil; end
+    def read_byte
+      raise NotImplementedError
+    end
     deprecate! :readByte => :read_byte
 
-    def read_i16; nil; end
+    def read_i16
+      raise NotImplementedError
+    end
     deprecate! :readI16 => :read_i16
 
-    def read_i32; nil; end
+    def read_i32
+      raise NotImplementedError
+    end
     deprecate! :readI32 => :read_i32
 
-    def read_i64; nil; end
+    def read_i64
+      raise NotImplementedError
+    end
     deprecate! :readI64 => :read_i64
 
-    def read_double; nil; end
+    def read_double
+      raise NotImplementedError
+    end
     deprecate! :readDouble => :read_double
 
-    def read_string; nil; end
+    def read_string
+      raise NotImplementedError
+    end
     deprecate! :readString => :read_string
 
     def write_field(name, type, fid, value)