public Builder clearEndTime() {
      bitField0_ = (bitField0_ & ~0x00000010);
      endTime_ = null;
      if (endTimeBuilder_ != null) {
        endTimeBuilder_.dispose();
        endTimeBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
The time at which the ScanRun reached termination state - that the ScanRun
is either finished or stopped by user.
</pre>

<code>.google.protobuf.Timestamp end_time = 5;</code>
java-websecurityscanner/proto-google-cloud-websecurityscanner-v1alpha/src/main/java/com/google/cloud/websecurityscanner/v1alpha/ScanRun.java