public Builder clear() {
        super.clear();
        javaPackage_ = "";
        bitField0_ = (bitField0_ & ~0x00000001);
        javaOuterClassname_ = "";
        bitField0_ = (bitField0_ & ~0x00000002);
        javaMultipleFiles_ = false;
        bitField0_ = (bitField0_ & ~0x00000004);
        javaGenerateEqualsAndHash_ = false;
        bitField0_ = (bitField0_ & ~0x00000008);
        optimizeFor_ = com.google.protobuf.DescriptorProtos.FileOptions.OptimizeMode.SPEED;
        bitField0_ = (bitField0_ & ~0x00000010);
        goPackage_ = "";
        bitField0_ = (bitField0_ & ~0x00000020);
        ccGenericServices_ = false;
        bitField0_ = (bitField0_ & ~0x00000040);
        javaGenericServices_ = false;
        bitField0_ = (bitField0_ & ~0x00000080);
        pyGenericServices_ = false;
        bitField0_ = (bitField0_ & ~0x00000100);
        if (uninterpretedOptionBuilder_ == null) {
          uninterpretedOption_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000200);
        } else {
          uninterpretedOptionBuilder_.clear();
        }
        return this;
      }