How do I fix SLF4J class path contains multiple SLF4J bindings?
If you are looking for quick solution for this issue, you need to find out how log4j is present on your path. run mvn dependency:tree and figure out the maven dependency and exclude log4j with snippet below to that dependency in your pom. xml . This should resolve SLF4J: Class Path Contains Multiple SLF4J Bindings.
What are SLF4J bindings?
Bindings are basically implementations of a particular SLF4J class meant to be extended to plug in a specific logging framework. By design, SLF4J will only bind with one logging framework at a time. Consequently, if more than one binding is present on the classpath, it will emit a warning.
How does slf4j binding work?
The “binding” happened when the SLF4J developers created libraries to handle the most popular Java logging frameworks. When the docs say that the “binding is hardwired at compile time,” it means the SLF4J developers have created a targeted library for a particular Java logging framework.
How do I exclude a Logback Classic?
Remove the jar from while packeging by adding this “excludeGroupIds log4j-slf4j-impl /excludeGroupIds” Find out the which library is depends on “logback-classic” by using command “mvn dependecy:tree” Wherever you find it exclude it from the dependency.
What is slf4j vs Log4j?
Unlike log4j, SLF4J (Simple Logging Facade for Java) is not an implementation of logging framework, it is an abstraction for all those logging frameworks in Java similar to log4J. Therefore, you cannot compare both. If you have a choice, logging abstraction is always preferable than logging framework.
What is slf4j?
SLF4J stands for Simple Logging Facade for Java. It provides a simple abstraction of all the logging frameworks. It enables a user to work with any of the logging frameworks such as Log4j, Logback, JUL (java.
What is slf4j vs log4j?
Why do we use slf4j?
This is the main purpose of SLF4J (Simple Logging Facade for Java) – a logging abstraction which helps to decouple your application from the underlying logger by allowing it to be plugged in – at runtime. Of course, the flexibility that such an abstraction provides is the main reason to use SLF4J.
How does SLF4J binding work?
Which is better SLF4J or Log4j2?
There is no difference in this respect between the Log4j2 API and SLF4J.
What is SLF4J?
How many SLF4J bindings are in the class path?
Multiple bindings of SLF4J 2 Groovy @Slf4j annotation: “Class path contains multiple SLF4J bindings” 4 Maven Class path error multiple SLF4J bindings 1 Gradle Class path contains multiple SLF4J bindings 0 Conflicts with logs libraries – Class path contains multiple SLF4J bindings 1
Why does SLF4J emit warning when there is more than one logging framework?
By design, SLF4J will only bind with one logging framework at a time. Consequently, if more than one binding is present on the classpath, it will emit a warning. It is worth noting that embedded components such as libraries or frameworks should never declare a dependency on any SLF4J binding.
Which is Gradle plugin contains multiple SLF4J bindings?
Gradle intelliJ plugin SLF4J: Class path contains multiple SLF4J bindings 16 Correct the classpath of your application so that it contains a single, compatible version of org.springframework.plugin.core.PluginRegistry
Are there any SLF4J bindings in Logback classic?
This warning is telling us that SLF4J has found two bindings. One is in slf4j-log4j12-1.7.21.jar and the other in logback-classic-1.1.7.jar. Now, let’s understand why we see this warning.