Possibly unintentional inclusion of logging framework

[salamanders]

I'm newish to maven, but I don't think this is normally what is done:
from mvn dependency:tree

[INFO] +- ai.djl:examples:jar:0.2.1:compile
[INFO] |  +- commons-cli:commons-cli:jar:1.4:runtime
[INFO] |  +- org.apache.logging.log4j:log4j-slf4j-impl:jar:2.12.1:runtime
[INFO] |  |  +- org.apache.logging.log4j:log4j-api:jar:2.12.1:runtime
[INFO] |  |  \- org.apache.logging.log4j:log4j-core:jar:2.12.1:runtime

Because it gives off warnings like

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/Users/ME/.m2/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.12.1/log4j-slf4j-impl-2.12.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/Users/ME/.m2/repository/org/slf4j/slf4j-simple/1.7.30/slf4j-simple-1.7.30.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]

All the other ai.djl:* dependencies look ok.

[frankfliu]

@salamanders
I'm not able to reproduce your error message with following command:

cd examples
mvn package -DskipTests
mvn exec:java -Dexec.mainClass="ai.djl.examples.inference.ObjectDetection"

And your maven dependency tree didn't show you have slf4j-simple included as well.

For the examples module, we only include log4j binding, I'm not sure how your slf4j-simple was added. Can you share your pom.xml file?

[frankfliu]

@salamanders
Feel free to reopen this issue if you can reproduce it with our examples.