Duplicate SLF4J bindings warning

[tribule]

Hi, we see this warning in the CF logs. Should we leave the warning or remove one of the JARs? Advice appreciated. The warning only started happening recently, perhaps after a CF update.

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/C:/ColdFusion2018/cfusion/lib/log4j-slf4j-impl-2.17.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/C:/ColdFusion2018/cfusion/lib/slf4j-log4j12-1.7.12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]

[Priyank Shrivastava.]

Hi @tribule 

We are aware of this warning and this will have any impact on your server functionality. As of now, you can ignore this message. 

[tribule]

Thanks, but is there a fix?

[BKBK]

Though the warning may be ignored, I think it's even better for the ColdFusion Team to fix the issue. Especially because it is simple to fix.

See, for example, https://www.baeldung.com/slf4j-classpath-multiple-bindings

[tribule]

@BKBKI already saw the link you provided but I still do not know which JAR file we should remove/rename based on the error above.

We have these files:

Directory of C:\ColdFusion2018\cfusion\lib

04/02/2019 09:05 32,127 slf4j-api-1.7.12.jar
04/02/2019 09:05 8,860 slf4j-log4j12-1.7.12.jar

[BKBK]

@BKBKI already saw the link you provided but I still do not know which JAR file we should remove/rename based on the error above.

By @tribule

Hi @tribule ,

The change I suggested has to be done inside the ColdFusion engine. So, my suggestion, and the accompanying link, are meant for Adobe's ColdFusion Team. Not for you, the user.

[tribule]

Understood. I renamed the two files above, error has gone now and logging unaffected so far.

[BKBK]

Understood. I renamed the two files above, error has gone now and logging unaffected so far.

By @tribule

You're brave. 🙂 I wouldn't take that risk.

The crucial thing is that the ColdFusion Team has to sort out the dependencies.

[tribule]

Well, I'll watch it and the first sign of any issues I'll rename them back lol.

[tribule]

Removed.