public Builder clearMissingHeaders() {
      if (missingHeadersBuilder_ == null) {
        missingHeaders_ = java.util.Collections.emptyList();
        bitField0_ = (bitField0_ & ~0x00000002);
        onChanged();
      } else {
        missingHeadersBuilder_.clear();
      }
      return this;
    }
<pre>
List of missing headers.
</pre>

<code>
repeated .google.cloud.websecurityscanner.v1alpha.VulnerableHeaders.Header missing_headers = 2;
</code>
java-websecurityscanner/proto-google-cloud-websecurityscanner-v1alpha/src/main/java/com/google/cloud/websecurityscanner/v1alpha/VulnerableHeaders.java