public Builder setEndTime(com.google.protobuf.Timestamp.Builder builderForValue) {
      if (endTimeBuilder_ == null) {
        endTime_ = builderForValue.build();
      } else {
        endTimeBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }
<pre>
Output only. Marks the end of execution, successful or not.
</pre>

<code>.google.protobuf.Timestamp end_time = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-workflow-executions/proto-google-cloud-workflow-executions-v1/src/main/java/com/google/cloud/workflows/executions/v1/Execution.java