public Builder setErrorResponse(com.alipay.sofa.jraft.rpc.RpcRequests.ErrorResponse value) {
                if (errorResponseBuilder_ == null) {
                    if (value == null) {
                        throw new NullPointerException();
                    }
                    errorResponse_ = value;
                    onChanged();
                } else {
                    errorResponseBuilder_.setMessage(value);
                }
                bitField0_ |= 0x00000004;
                return this;
            }
<code>optional .jraft.ErrorResponse errorResponse = 99;</code>
jraft-core/src/main/java/com/alipay/sofa/jraft/rpc/CliRequests.java