December 2012 - logback-user

logback-android problem with exception logging and logcat
by Duarte Silva 07 Dec '12

07 Dec '12

Hi, I have searched for this problem but haven't been successful in my quest for a solution. I have attached the configuration used as well as the result in the logcat output using logback and the Android Log. The logging call is the following (where LOGGER as been obtained by using the LoggerFactory and the configuration is in the application manifest): if (LOGGER.isWarnEnabled()) { LOGGER.warn("Failed to use the mark/reset, will retrieve the data again", exception); } As you may notice the output is all crapped out. What am I doing wrong? Best regards, Duarte Silva

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Release of logback version 1.0.8
by ceki 04 Dec '12

04 Dec '12

Hello all, I am happy to announce the release of logback version 1.0.8. It should hit the Maven central repository within the next 2 hours. Please refer to the news page for precise details of this release. http://logback.qos.ch/news.html You can download logback, including full source code, class files and documentation on our download page, shown below. http://logback.qos.ch/download.html You can receive logback related announcements by subscribing to the QOS.ch announce mailing list. To subscribe to QOS.ch announce list, please visit the following URL. http://www.qos.ch/mailman/listinfo/announce You may also receive announcements via twitter via the following account: https://twitter.com/qos_ch Enjoy, -- Ceki 65% of statistics are made up on the spot

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Logback, OSGi and DynamicClassLoadingException
by Benoît Thiébault 03 Dec '12

03 Dec '12

Hi everyone, I am migrating an OSGi-based application from System.out.println to slf4j / logback and I am having some problems. I have provided logback with a configuration file via the "logback.configurationFile" and it works very well. In this configuration file, I have defined a specific appender that I have developed, but logback fails to instantiate it (cf. stacktrace below). This is not really a surprise: each OSGi bundle has its own classloader. My org.test.LogConsole is in its own bundle and thus logback classloader cannot find it. One solution is to declare my org.test.LogConsole bundle as a fragment of logback. The fragment bundle is not a bundle per se and shares its classloader with the host bundle. This is however very constraining in term of bundle resolution / starting order as the fragment bundle has to be installed before the host. Isn't there another way (such as LogBack.Configuration.addClassloader()) to indicate logback classic where to search for my org.test.LogConsole class ? Kind regards, Ben 10:58:48,848 |-ERROR in ch.qos.logback.core.joran.action.AppenderAction - Could not create an Appender of type [org.test.LogConsole]. ch.qos.logback.core.util.DynamicClassLoadingException: Failed to instantiate type org.test.LogConsole at ch.qos.logback.core.util.DynamicClassLoadingException: Failed to instantiate type org.test.LogConsole at at ch.qos.logback.core.util.OptionHelper.instantiateByClassNameAndParameter(OptionHelper.java:74) at at ch.qos.logback.core.util.OptionHelper.instantiateByClassName(OptionHelper.java:49) at at ch.qos.logback.core.util.OptionHelper.instantiateByClassName(OptionHelper.java:35) at at ch.qos.logback.core.joran.action.AppenderAction.begin(AppenderAction.java:54) at at ch.qos.logback.core.joran.spi.Interpreter.callBeginAction(Interpreter.java:276) at at ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:148) at at ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:130) at at ch.qos.logback.core.joran.spi.EventPlayer.play(EventPlayer.java:50) at at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:157) at at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:143) at at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:106) at at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:56) at at ch.qos.logback.classic.util.ContextInitializer.configureByResource(ContextInitializer.java:75) at at ch.qos.logback.classic.util.ContextInitializer.autoConfig(ContextInitializer.java:148) at at org.slf4j.impl.StaticLoggerBinder.init(StaticLoggerBinder.java:84) at at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:54) at at org.slf4j.LoggerFactory.bind(LoggerFactory.java:128) at at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:107) at at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:295) at at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:269)

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