@Nonnull
  public PhotonGlobalState setDefaultApplicationID (@Nullable final String sDefaultApplicationID)
  {
    m_aRWLock.writeLocked ( () -> {
      if (!EqualsHelper.equals (m_sDefaultApplicationID, sDefaultApplicationID))
      {
        m_sDefaultApplicationID = sDefaultApplicationID;
        if (LOGGER.isInfoEnabled ())
          LOGGER.info ("Default application ID set to '" + sDefaultApplicationID + "'");
      }
    });
    return this;
  }
@ Nonnull public PhotonGlobalState setDefaultApplicationID ( @ Nullable final String sDefaultApplicationID ) { m_aRWLock . writeLocked ( ( ) -> { if ( ! EqualsHelper . equals ( m_sDefaultApplicationID , sDefaultApplicationID ) ) { m_sDefaultApplicationID = sDefaultApplicationID ; if ( LOGGER . isInfoEnabled ( ) ) LOGGER . info ( "Default application ID set to '" + sDefaultApplicationID + "'" ) ; } } ) ; return this ; }
Set the default application ID of an application servlet.

@param sDefaultApplicationID
The last application ID to be set. May be <code>null</code>.
@return this for chaining