Hello all,

My Application uses Groovy to dynamically create classes at runtime.

During execution an exception is thrown but somehow the GroovyClassLoader creates an AssertionError when logback tries to calculate the PackagingData information afterwards.

I was able do deactivae the PackagingData printout using the %%ex option in the Pattern definition. But this seems only to hide the printout, it still tries to calculate.

During execution anCaused by: java.lang.AssertionError: true
    at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:719)
    at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:759)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at ch.qos.logback.classic.spi.PackagingDataCalculator.loadClass(PackagingDataCalculator.java:198)
    at ch.qos.logback.classic.spi.PackagingDataCalculator.bestEffortLoadClass(PackagingDataCalculator.java:220)
    at ch.qos.logback.classic.spi.PackagingDataCalculator.computeBySTEP(PackagingDataCalculator.java:132)
    at ch.qos.logback.classic.spi.PackagingDataCalculator.populateFrames(PackagingDataCalculator.java:95)
    at ch.qos.logback.classic.spi.PackagingDataCalculator.calculate(PackagingDataCalculator.java:58)
    at ch.qos.logback.classic.spi.ThrowableProxy.calculatePackagingData(ThrowableProxy.java:100)
    at ch.qos.logback.classic.spi.LoggingEvent.<init>(LoggingEvent.java:126)
    at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:471)
    at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:427)
    at ch.qos.logback.classic.Logger.log(Logger.java:846)

Having a look at ch.qos.logback.classic.spi.LoggingEvent.<init>(LoggingEvent.java:126)

122    if (throwable != null) {
123        this.throwableProxy = new ThrowableProxy(throwable);
124        LoggerContext lc = logger.getLoggerContext();
125        if (lc.isPackagingDataEnabled()) {
126            this.throwableProxy.calculatePackagingData();
127        }
128    }

Is the any possibility in the configuration file to set lc.isPackagingDataEnabled() to false?

Kind regards

Christian