public Builder clear() {
        super.clear();
        messageSetWireFormat_ = false;
        bitField0_ = (bitField0_ & ~0x00000001);
        noStandardDescriptorAccessor_ = false;
        bitField0_ = (bitField0_ & ~0x00000002);
        if (uninterpretedOptionBuilder_ == null) {
          uninterpretedOption_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000004);
        } else {
          uninterpretedOptionBuilder_.clear();
        }
        return this;
      }