public Builder clearSubmission() {
      bitField0_ = (bitField0_ & ~0x00000002);
      submission_ = null;
      if (submissionBuilder_ != null) {
        submissionBuilder_.dispose();
        submissionBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
Required. The submission that contains the content of the phishing report.
</pre>

<code>
.google.cloud.webrisk.v1.Submission submission = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-webrisk/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/CreateSubmissionRequest.java