public Builder setFieldName(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      fieldName_ = value;
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }
<pre>
Output only. Indicates the full name of the ScanConfig field that triggers this error,
for example "scan_config.max_qps". This field is provided for
troubleshooting purposes only and its actual value can change in the
future.
</pre>

<code>string field_name = 2;</code>

@param value The fieldName to set.
@return This builder for chaining.
java-websecurityscanner/proto-google-cloud-websecurityscanner-v1/src/main/java/com/google/cloud/websecurityscanner/v1/ScanConfigError.java