[logback-user] TRACE messages get through even at DEBUG Level

[Ceki Gulcu]

Andy,

Thank you for your message. I think the following test reproduces the bug you 
have encountered.

   @Test
   public void levelResetTest() {
     LoggerContext loggerContext = new LoggerContext();

     Logger root = loggerContext.getLogger(LoggerContext.ROOT_NAME);
     root.setLevel(Level.TRACE);
     assertTrue(root.isTraceEnabled());
     loggerContext.reset();
     assertFalse(root.isTraceEnabled());  <-- assertion fails
     assertTrue(root.isDebugEnabled());
   }

If so, could you please enter a jira issue at http://jira.qos.ch   ? Many thanks 
in advance,

Andy Ruch wrote:
> Hello,
> 
> I'm using SLF4J 1.5.6 and Logback 0.9.15.
> 
> I'm wanting to reconfigure Logback in my code, but I think I've found a bug. I've copied the following code from the documentation for how to reconfigure Logback.
> 
> // assume SLF4J is bound to logback in the current environment
> LoggerContext lc = ( LoggerContext ) LoggerFactory.getILoggerFactory();
> 
> try {
>     JoranConfigurator configurator = new JoranConfigurator();
>     configurator.setContext( lc );
>     // the context was probably already configured by default configuration
>     // rules
>     lc.reset();
>     configurator.doConfigure( url );
> }
> catch ( JoranException je ) {
>     je.printStackTrace();
> }
> StatusPrinter.printInCaseOfErrorsOrWarnings( lc );
> 
> 
> This works fine, except for when my new root logger level is DEBUG. If that is the case, 
 > I receive trace messages also. I have tracked the issue down to
 > ch.qos.logback.classic.Logger. When localLevelReset() is called, the
 > effectiveLevelInt is set to DEBUG_INT = 10. If it is the root logger,
 > the level is also set to DEBUG. When the logger is being reconfigured,
> setLevel() is called with newLevel = DEBUG. Because level == newLevel, 
 > nothing happens and the method returns. However, effectiveLevelInt is never
 > being set to ch.qos.logback.classic.Level.DEBUG_INT = 10000. When a TRACE log
 > message is then evaluated, it is sent through because the effectiveLevelInt 
is still 10,
 > even though Level should be DEBUG.

-- 
Ceki Gülcü
Logback: The reliable, generic, fast and flexible logging framework for Java.
http://logback.qos.ch