public void setTaskArn(String taskArn) {
        this.taskArn = taskArn;
    }
<p>
Specifies the Amazon Resource Name (ARN) of the task that you want to start.
</p>

@param taskArn
       Specifies the Amazon Resource Name (ARN) of the task that you want to start.
aws-java-sdk-datasync/src/main/java/com/amazonaws/services/datasync/model/StartTaskExecutionRequest.java