src/main/java/io/arivera/oss/embedded/rabbitmq/apache/commons/lang3/StopWatch.java
public void start() {
    if (this.runningState == State.STOPPED) {
      throw new IllegalStateException("Stopwatch must be reset before being restarted. ");
    }
    if (this.runningState != State.UNSTARTED) {
      throw new IllegalStateException("Stopwatch already started. ");
    }
    this.startTime = System.nanoTime();
    this.startTimeMillis = System.currentTimeMillis();
    this.runningState = State.RUNNING;
  }
public void start() {
    if (this.runningState == State.STOPPED) {
      throw new IllegalStateException("Stopwatch must be reset before being restarted. ");
    }
    if (this.runningState != State.UNSTARTED) {
      throw new IllegalStateException("Stopwatch already started. ");
    }
    this.startTime = System.nanoTime();
    this.startTimeMillis = System.currentTimeMillis();
    this.runningState = State.RUNNING;
  }
public void start ( ) { if ( this . runningState == State . STOPPED ) { throw new IllegalStateException ( "Stopwatch must be reset before being restarted. " ) ; } if ( this . runningState != State . UNSTARTED ) { throw new IllegalStateException ( "Stopwatch already started. " ) ; } this . startTime = System . nanoTime ( ) ; this . startTimeMillis = System . currentTimeMillis ( ) ; this . runningState = State . RUNNING ; }
<p>
Start the stopwatch.
</p>

<p>
This method starts a new timing session, clearing any previous values.
</p>

@throws IllegalStateException
if the StopWatch is already running.
<p > Start the stopwatch . < / p >