Respect the UTF8 validation behavior specified by the global utf8_validation feature.

Invalid default, which should never be used.

Verifies UTF8 validity overriding the global utf8_validation feature.

Enum value maps for CppFeatures_StringType.

Enum value maps for CppFeatures_StringType.

optional pb.CppFeatures cpp = 1000;.

optional pb.JavaFeatures java = 1001;.

Enum value maps for JavaFeatures_Utf8Validation.

Enum value maps for JavaFeatures_Utf8Validation.

The UTF8 validation strategy to use.