private void createLevelJob() throws IllegalArgumentException {
if(this.manager != null) {
this.manager.terminate();
}
this.manager = new LevelManagerImpl( getLevel() );
this.manager.pauseOnDeath( true );
this.manager.setInterval( GameSettings.getInstance()
.getValue( GameSettings.INTEGER_SETTINGS_TYPE.MOVE_MILLIS_TIMEOUT ) );
this.manager.addLevelStopListener( GameHolder.this );
}