The Java project is using log4j2, but look like some components are used SLF4J logging and caused the following error message:
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Solution
To fix it, we need a SLF4J Bridge. Puts log4j-slf4j-impl in the classpath.
pom.xml
<!-- log4j2 -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j</artifactId>
<version>2.11.2</version>
</dependency>
<!-- SLF4J Bridge -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>2.11.2</version>
</dependency>
Thanks. It worked for me.
Thank you!
A little bit higher version helped me
<!-- log4j2 --> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j</artifactId> <version>2.19.0</version> <type>pom</type> </dependency> <!-- SLF4J Bridge --> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-slf4j-impl</artifactId> <version>2.19.0</version> </dependency>Hi Mkyong,
I added the Log4j sl4j binding dependency but now i get lot of DEBUG log messages.
Worked for me. Thanks dude.
Saved my day
SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”.
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
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:: Spring Boot :: (v2.1.9.RELEASE)
It did not resolve my same issue