No log is printed with Slf4j 2.x.x

[toantk238]

Description

I apply the slf4j version 2.0.3 in android project.
I tried to print log with debug, error level but nothing is printed. I check via logcat.

If I rollback to version 1.7.36, it works.

Steps to reproduce

implementation("org.slf4j:slf4j-api:2.0.3")
implementation("com.github.tony19:logback-android:2.0.0")

Environment

Android version : 9
Device : Huawei Nova 3i

[MNCloudwerksTechnology]

We have the same problem in our app, just after upgrading to Android target sdk 33 and setting both source- and targetCompatibility to JDK 11. After a bit of deep diving we noticed the following:

• Xml file was not read and logger fell back into NOPLogger implementation
• This was also the case when creating a logger via programmatic approach
• Already the call LoggerFactory.getILoggerFactory() produced a NOPLoggerFactory
• Same things happen on older versions of both slf4j-api and logback-android

Same thing happens when trying to use the original logback dependencies without the logback-android one like this:

implementation 'ch.qos.logback:logback-classic:1.2.3' implementation 'ch.qos.logback:logback-core:1.2.6' implementation 'ch.qos.logback:logback-parent:1.2.6'

This makes me believe that there is a general incompatibility wiith either Android 13 or Java 11 in the core libraries. I will research further and if necessary create a ticket for ch.qos.logback. If so, i will link it here.

[conbrad]

We're also affected by this issue. I noticed the major release linked above has no specific date, would you be open to cutting that release sooner than later?

[tony19]

Fix is released in v3.0.0. It may take a while before it's indexed in Maven Central.

[conbrad]

Fix is released in v3.0.0. It may take a while before it's indexed in Maven Central.

Thank you!

[sorinirimies]

Thank you so much.