private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.websecurityscanner.v1alpha.VulnerableHeaders,
            com.google.cloud.websecurityscanner.v1alpha.VulnerableHeaders.Builder,
            com.google.cloud.websecurityscanner.v1alpha.VulnerableHeadersOrBuilder>
        getVulnerableHeadersFieldBuilder() {
      if (vulnerableHeadersBuilder_ == null) {
        vulnerableHeadersBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.websecurityscanner.v1alpha.VulnerableHeaders,
                com.google.cloud.websecurityscanner.v1alpha.VulnerableHeaders.Builder,
                com.google.cloud.websecurityscanner.v1alpha.VulnerableHeadersOrBuilder>(
                getVulnerableHeaders(), getParentForChildren(), isClean());
        vulnerableHeaders_ = null;
      }
      return vulnerableHeadersBuilder_;
    }
<pre>
An addon containing information about vulnerable or missing HTTP headers.
</pre>

<code>.google.cloud.websecurityscanner.v1alpha.VulnerableHeaders vulnerable_headers = 15;
</code>
java-websecurityscanner/proto-google-cloud-websecurityscanner-v1alpha/src/main/java/com/google/cloud/websecurityscanner/v1alpha/Finding.java