private com.google.protobuf.SingleFieldBuilderV3<
              com.google.cloud.workflows.executions.v1.Execution.StackTraceElement.Position,
              com.google.cloud.workflows.executions.v1.Execution.StackTraceElement.Position.Builder,
              com.google.cloud.workflows.executions.v1.Execution.StackTraceElement
                  .PositionOrBuilder>
          getPositionFieldBuilder() {
        if (positionBuilder_ == null) {
          positionBuilder_ =
              new com.google.protobuf.SingleFieldBuilderV3<
                  com.google.cloud.workflows.executions.v1.Execution.StackTraceElement.Position,
                  com.google.cloud.workflows.executions.v1.Execution.StackTraceElement.Position
                      .Builder,
                  com.google.cloud.workflows.executions.v1.Execution.StackTraceElement
                      .PositionOrBuilder>(getPosition(), getParentForChildren(), isClean());
          position_ = null;
        }
        return positionBuilder_;
      }
<pre>
The source position information of the stack trace element.
</pre>

<code>
.google.cloud.workflows.executions.v1.Execution.StackTraceElement.Position position = 3;
</code>
java-workflow-executions/proto-google-cloud-workflow-executions-v1/src/main/java/com/google/cloud/workflows/executions/v1/Execution.java