diff --git a/src/google/protobuf/compiler/java/names.cc b/src/google/protobuf/compiler/java/names.cc
index 7f026ecaf6d2..6df146353c78 100644
--- a/src/google/protobuf/compiler/java/names.cc
+++ b/src/google/protobuf/compiler/java/names.cc
@@ -39,17 +39,17 @@ const char* DefaultPackage(Options options) {
 bool IsReservedName(absl::string_view name) {
   static const auto& kReservedNames =
       *new absl::flat_hash_set<absl::string_view>({
-          "abstract", "assert",     "boolean",      "break",     "byte",
-          "case",     "catch",      "char",         "class",     "const",
-          "continue", "default",    "do",           "double",    "else",
-          "enum",     "extends",    "false",        "final",     "finally",
-          "float",    "for",        "goto",         "if",        "implements",
-          "import",   "instanceof", "int",          "interface", "long",
-          "native",   "new",        "package",      "private",   "protected",
-          "public",   "return",     "short",        "static",    "strictfp",
-          "super",    "switch",     "synchronized", "this",      "throw",
-          "throws",   "transient",  "true",         "try",       "void",
-          "volatile", "while",
+          "abstract",  "assert",     "boolean",   "break",        "byte",
+          "case",      "catch",      "char",      "class",        "const",
+          "continue",  "default",    "do",        "double",       "else",
+          "enum",      "extends",    "false",     "final",        "finally",
+          "float",     "for",        "goto",      "if",           "implements",
+          "import",    "instanceof", "int",       "interface",    "long",
+          "native",    "new",        "null",      "package",      "private",
+          "protected", "public",     "return",    "short",        "static",
+          "strictfp",  "super",      "switch",    "synchronized", "this",
+          "throw",     "throws",     "transient", "true",         "try",
+          "void",      "volatile",   "while",
       });
   return kReservedNames.contains(name);
 }