[Java-2.5.2] SimpleLoggerFactory cannot be cast to ch.qos.logback.classic.LoggerContext

[Johan Dahlberg]

I get the following errors since upgrading to 2.5.2. I got different errors on 2.5.0 and 2.5.1 so I'm not sure this begun in 2.5.2.

Anyone that knows the problem? I use the default logger XML:s listed in the documentation.

java.lang.ClassCastException: org.slf4j.impl.SimpleLoggerFactory cannot be cast to ch.qos.logback.classic.LoggerContext

at play.api.libs.logback.LogbackLoggerConfigurator.configure(LogbackLoggerConfigurator.scala:77)

at play.api.libs.logback.LogbackLoggerConfigurator.init(LogbackLoggerConfigurator.scala:26)

at play.core.server.DevServerStart$$anonfun$mainDev$1.apply(DevServerStart.scala:90)

at play.core.server.DevServerStart$$anonfun$mainDev$1.apply(DevServerStart.scala:61)

at play.utils.Threads$.withContextClassLoader(Threads.scala:21)

at play.core.server.DevServerStart$.mainDev(DevServerStart.scala:60)

at play.core.server.DevServerStart$.mainDevHttpMode(DevServerStart.scala:50)

at play.core.server.DevServerStart.mainDevHttpMode(DevServerStart.scala)

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

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:497)

at play.runsupport.Reloader$.startDevMode(Reloader.scala:233)

at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun$apply$3.devModeServer$lzycompute$1(PlayRun.scala:74)

at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun$apply$3.play$sbt$run$PlayRun$$anonfun$$anonfun$$anonfun$$devModeServer$1(PlayRun.scala:74)

at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun$apply$3.apply(PlayRun.scala:100)

at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun$apply$3.apply(PlayRun.scala:53)

at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)

[trace] Stack trace suppressed: run last compile:run for the full output.

[error] (compile:run) java.lang.reflect.InvocationTargetException

[error] Total time: 0 s, completed Apr 20, 2016 2:05:29 PM

[Will Sargent]

You have a competing SLF4J implementation in your classpath -- SimpleLoggerFactory belongs to slf4j-simple, and you should only have logback in your path.

Use https://github.com/jrudolph/sbt-dependency-graph to show all of your dependencies and then use exclude to make sure that sbt-simple and therefore the SimpleLoggerFactory class is not in your classpath.

http://www.scala-sbt.org/0.13/docs/Library-Management.html#Exclude+Transitive+Dependencies 

Will.

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[Johan Dahlberg]

Thanks, it was com.typesafe:jse that had it as a dependency.

/Johan

[shobhit singh]

Hi Johan, 

 How you resolved this issue, com.typesafe is an an sbt plugin? while exclude option is only available for library dependency in sbt.

Thanks,

Shobhit

[Johan Dahlberg]

Sorry for late response, didn't see that you wrote.

I added this line to my build.sbt:

"com.typesafe" %% "jse" % "1.1.2" exclude("org.slf4j", "slf4j-simple"),

/Johan

[shobhit singh]

Thanks Johan for the reply, by hit and trial even I landed on this solution, and its working.

Regards,

Shobhit

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Regards

Shobhit Singh