code: private void endApplication(@Nullable Thread uncaughtExceptionThread, Throwable th) {
          final boolean letDefaultHandlerEndApplication = config.alsoReportToAndroidFramework();
  
          final boolean handlingUncaughtException = uncaughtExceptionThread != null;
          if (handlingUncaughtException && letDefaultHandlerEndApplication && defaultExceptionHandler != null) {
              // Let the system default handler do it's job and display the force close dialog.
              if (ACRA.DEV_LOGGING) ACRA.log.d(LOG_TAG, "Handing Exception on to default ExceptionHandler");
              defaultExceptionHandler.uncaughtException(uncaughtExceptionThread, th);
          } else {
              processFinisher.endApplication();
          }
      }
docs: End the application.