private void ensureMissingHeadersIsMutable() {
      if (!((bitField0_ & 0x00000002) != 0)) {
        missingHeaders_ =
            new java.util.ArrayList<
                com.google.cloud.websecurityscanner.v1beta.VulnerableHeaders.Header>(
                missingHeaders_);
        bitField0_ |= 0x00000002;
      }
    }
<pre>
List of vulnerable headers.
</pre>

<code>repeated .google.cloud.websecurityscanner.v1beta.VulnerableHeaders.Header headers = 1;
</code>
java-websecurityscanner/proto-google-cloud-websecurityscanner-v1beta/src/main/java/com/google/cloud/websecurityscanner/v1beta/VulnerableHeaders.java