code: public void setApplicationId(String applicationId) {
  		// Set the application id as a GeoPackage
  		int applicationIdInt = ByteBuffer.wrap(applicationId.getBytes())
  				.asIntBuffer().get();
  		execSQL(String.format("PRAGMA application_id = %d;", applicationIdInt));
  	}
docs: Set the GeoPackage application id
  
  @param applicationId
  application id
  @since 1.2.1