Namasthe,

 

I have switched from log4j to logback. For configuration,  I initially worked with logback.xml  which worked fine. I wanted to get rid of xml so re-wrote the logback.xml in groovy.

The logback.groovy is as below:

import ch.qos.logback.classic.PatternLayout

import ch.qos.logback.classic.filter.ThresholdFilter

import ch.qos.logback.classic.net.SMTPAppender

import ch.qos.logback.core.ConsoleAppender

import ch.qos.logback.core.rolling.FixedWindowRollingPolicy

import ch.qos.logback.core.rolling.RollingFileAppender

import ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy

 

import static ch.qos.logback.classic.Level.ERROR

import static ch.qos.logback.classic.Level.INFO

 

appender("RootFileAppender", RollingFileAppender) {

  file = "project"

  append = true

  filter(ThresholdFilter) {

    level = INFO

  }

  rollingPolicy(FixedWindowRollingPolicy) {

    fileNamePattern = "project_log.%i"

    maxIndex = 1

  }

  triggeringPolicy(SizeBasedTriggeringPolicy) {

    maxFileSize = 1000000

  }

  layout(PatternLayout) {

    pattern = "%d{yyyy-MM-dd HH:mm:ss}, %p, %c, %t, %ex, %F, %L, %C{1}, %M %m%n"

  }

}

appender("RootConsoleAppender", ConsoleAppender) {

  filter(ThresholdFilter) {

    level = INFO

  }

  layout(PatternLayout) {

    pattern = "%d{yyyy-MM-dd HH:mm:ss}, %p, %c, %t %m%n"

  }

}

appender("RootEmailAppender", SMTPAppender) {

  filter(ThresholdFilter) {

    level = ERROR

  }

  bufferSize = 10

  SMTPHost = "smtp.hostaddress"

  to = "logback.user@xyz.com"

  from = " logback.user@xyz.com "

  username = "user"

  password = "password"

  subject = "Logback Error"

  layout(PatternLayout) {

    pattern = "%d{yyyy-MM-dd HH:mm:ss}, %p, %c, %t, %ex, %F, %L, %C{1}, %M %m%n"

  }

}

root(INFO, ["RootFileAppender", "RootConsoleAppender", "RootEmailAppender"])

 (Some values have been masked for security reasons).

I put this file in the classpath.

After that I started my application, but I got this exception:

Failed to instantiate [ch.qos.logback.classic.LoggerContext]

Reported exception:

java.lang.VerifyError: (class: groovy/runtime/metaclass/java/lang/StringMetaClass, method: super$2$invokeMethod signature: (Ljava/lang/Class;Ljava/lang/Object;Ljava/lang/String;[Ljava/lang/Object;ZZ)Ljava/lang/Object;) Illegal use of nonvirtual function call

      at java.lang.Class.forName0(Native Method)

      at java.lang.Class.forName(Class.java:169)

      at groovy.lang.MetaClassRegistry$MetaClassCreationHandle.createWithCustomLookup(MetaClassRegistry.java:127)

      at groovy.lang.MetaClassRegistry$MetaClassCreationHandle.create(MetaClassRegistry.java:122)

      at org.codehaus.groovy.reflection.ClassInfo.getMetaClassUnderLock(ClassInfo.java:165)

      at org.codehaus.groovy.reflection.ClassInfo.getMetaClass(ClassInfo.java:195)

      at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.getMetaClass(MetaClassRegistryImpl.java:214)

      at org.codehaus.groovy.runtime.InvokerHelper.getMetaClass(InvokerHelper.java:747)

      at org.codehaus.groovy.runtime.callsite.CallSiteArray.createPojoSite(CallSiteArray.java:107)

      at org.codehaus.groovy.runtime.callsite.CallSiteArray.createCallSite(CallSiteArray.java:148)

      at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)

      at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)

      at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)

      at ch.qos.logback.classic.gaffer.ConfigurationDelegate.appender(ConfigurationDelegate.groovy:117)

      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

      at java.lang.reflect.Method.invoke(Method.java:597)

      at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)

      at org.codehaus.groovy.runtime.metaclass.MixinInstanceMetaMethod.invoke(MixinInstanceMetaMethod.java:53)

      at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoMetaMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:307)

      at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:51)

      at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)

      at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)

      at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:157)

      at Script1.run(Script1.groovy:24)

      at Script1$run.call(Unknown Source)

      at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)

      at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)

      at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:120)

      at ch.qos.logback.classic.gaffer.GafferConfigurator.run(GafferConfigurator.groovy:59)

      at ch.qos.logback.classic.gaffer.GafferConfigurator$run.callCurrent(Unknown Source)

      at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)

      at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)

      at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)

      at ch.qos.logback.classic.gaffer.GafferConfigurator.run(GafferConfigurator.groovy:37)

      at ch.qos.logback.classic.gaffer.GafferUtil.runGafferConfiguratorOn(GafferUtil.java:44)

      at ch.qos.logback.classic.util.ContextInitializer.configureByResource(ContextInitializer.java:67)

      at ch.qos.logback.classic.util.ContextInitializer.autoConfig(ContextInitializer.java:150)

      at org.slf4j.impl.StaticLoggerBinder.init(StaticLoggerBinder.java:85)

      at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:55)

      at org.slf4j.LoggerFactory.bind(LoggerFactory.java:121)

      at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:111)

      at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:268)

      at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:241)

      at src.temporalprocessing.StartProgram.<clinit>(StartProgram.java:37)

 

 

When I switch from logback.groovy to logback.xml, everything works perfectly (both the configurations are equal in functionality).

 

My google search did not yield useful information.

 

I am using the following jars:

1.       groovy-all-1.7.8.jar

2.       logback-access-0.9.28.jar

3.       logback-classic-0.9.28.jar

4.       logback-core-0.9.28.jar

5.       slf4j-api-1.6.1.jar

 

Can somebody please help me to resolve the issue.

 

Regards

Rathnadhar.K.V