@Test
  public void logServiceReturnsFastLoggers() {
    logger = LogService.getLogger();

    assertThat(logger).isInstanceOf(FastLogger.class);
  }
LogService getLogger should return loggers wrapped in FastLogger
geode-log4j/src/integrationTest/java/org/apache/geode/logging/log4j/internal/impl/FastLoggerWithDefaultConfigIntegrationTest.java