public Builder mergeThreatJustification(
        com.google.webrisk.v1.ThreatInfo.ThreatJustification value) {
      if (threatJustificationBuilder_ == null) {
        if (((bitField0_ & 0x00000004) != 0)
            && threatJustification_ != null
            && threatJustification_
                != com.google.webrisk.v1.ThreatInfo.ThreatJustification.getDefaultInstance()) {
          getThreatJustificationBuilder().mergeFrom(value);
        } else {
          threatJustification_ = value;
        }
      } else {
        threatJustificationBuilder_.mergeFrom(value);
      }
      if (threatJustification_ != null) {
        bitField0_ |= 0x00000004;
        onChanged();
      }
      return this;
    }
<pre>
Context about why the URI is unsafe.
</pre>

<code>.google.cloud.webrisk.v1.ThreatInfo.ThreatJustification threat_justification = 3;
</code>
java-webrisk/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/ThreatInfo.java