diff --git a/compiler/cpp/src/generate/t_cpp_generator.cc b/compiler/cpp/src/generate/t_cpp_generator.cc
index 6366497..2bb24c4 100644
--- a/compiler/cpp/src/generate/t_cpp_generator.cc
+++ b/compiler/cpp/src/generate/t_cpp_generator.cc
@@ -560,9 +560,11 @@
     case t_base_type::TYPE_BYTE:
     case t_base_type::TYPE_I16:
     case t_base_type::TYPE_I32:
-    case t_base_type::TYPE_I64:
       render << value->get_integer();
       break;
+    case t_base_type::TYPE_I64:
+      render << value->get_integer() << "LL";
+      break;
     case t_base_type::TYPE_DOUBLE:
       if (value->get_type() == t_const_value::CV_INTEGER) {
         render << value->get_integer();
diff --git a/compiler/cpp/src/generate/t_java_generator.cc b/compiler/cpp/src/generate/t_java_generator.cc
index 6da8e3c..887fc7a 100644
--- a/compiler/cpp/src/generate/t_java_generator.cc
+++ b/compiler/cpp/src/generate/t_java_generator.cc
@@ -478,11 +478,17 @@
       render << ((value->get_integer() > 0) ? "true" : "false");
       break;
     case t_base_type::TYPE_BYTE:
+      render << "(byte)" << value->get_integer();
+      break;
     case t_base_type::TYPE_I16:
+      render << "(short)" << value->get_integer();
+      break;
     case t_base_type::TYPE_I32:
-    case t_base_type::TYPE_I64:
       render << value->get_integer();
       break;
+    case t_base_type::TYPE_I64:
+      render << value->get_integer() << "L";
+      break;
     case t_base_type::TYPE_DOUBLE:
       if (value->get_type() == t_const_value::CV_INTEGER) {
         render << value->get_integer();
diff --git a/test/DebugProtoTest.thrift b/test/DebugProtoTest.thrift
index 515635e..e8eb9a3 100644
--- a/test/DebugProtoTest.thrift
+++ b/test/DebugProtoTest.thrift
@@ -15,15 +15,18 @@
 struct OneOfEach {
   1: bool im_true,
   2: bool im_false,
-  3: byte a_bite,
-  4: i16 integer16,
+  3: byte a_bite = 200,
+  4: i16 integer16 = 33000,
   5: i32 integer32,
-  6: i64 integer64,
+  6: i64 integer64 = 10000000000,
   7: double double_precision,
   8: string some_characters,
   9: string zomg_unicode,
   10: bool what_who,
   11: binary base64,
+  12: list<byte> byte_list = [1, 2, 3],
+  13: list<i16> i16_list = [1,2,3],
+  14: list<i64> i64_list = [1,2,3]
 }
 
 struct Bonk {