code: @Test public void setLoggerLevel_LBCLASSIC_79(){
    String objectNameAsStr="ch.qos" + diff + ":Name="+ lc.getName()+ ",Type="+ this.getClass().getName();
    ObjectName on=MBeanUtil.string2ObjectName(lc,this,objectNameAsStr);
    JMXConfigurator configurator=new JMXConfigurator(lc,mbs,on);
    configurator.setLoggerLevel(testLogger.getName(),"DEBUG");
    assertEquals(Level.DEBUG,testLogger.getLevel());
    configurator.setLoggerLevel(testLogger.getName(),"null");
    assertNull(testLogger.getLevel());
    MBeanUtil.unregister(lc,mbs,on,this);
  }
  