SLF4J: multiple SLF4J bindings with Gradle Plugin

[jdkhome]

Expected Behavior

The procedure is executed normally

Current Behavior

➜  example git:(master) ✗ gradle bootRun

> Task :bootRun FAILED
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/Users/linkji/.gradle/caches/6.5.1/generated-gradle-jars/gradle-api-6.5.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/Users/linkji/.gradle/caches/modules-2/files-2.1/ch.qos.logback/logback-classic/1.2.3/7c4f3c474fb2c041d8028740440937705ebb473a/logback-classic-1.2.3.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.gradle.internal.logging.slf4j.OutputEventListenerBackedLoggerContext]
Exception in thread "main" java.lang.IllegalArgumentException: LoggerFactory is not a Logback LoggerContext but Logback is on the classpath. Either remove Logback or the competing implementation (class org.gradle.internal.logging.slf4j.OutputEventListenerBackedLoggerContext loaded from file:/Users/linkji/.gradle/caches/6.5.1/generated-gradle-jars/gradle-api-6.5.1.jar). If you are using WebLogic you will need to add 'org.slf4j' to prefer-application-packages in WEB-INF/weblogic.xml: org.gradle.internal.logging.slf4j.OutputEventListenerBackedLoggerContext
        at org.springframework.util.Assert.instanceCheckFailed(Assert.java:696)
        at org.springframework.util.Assert.isInstanceOf(Assert.java:596)
        at org.springframework.boot.logging.logback.LogbackLoggingSystem.getLoggerContext(LogbackLoggingSystem.java:284)
        at org.springframework.boot.logging.logback.LogbackLoggingSystem.beforeInitialize(LogbackLoggingSystem.java:104)
        at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationStartingEvent(LoggingApplicationListener.java:232)
        at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:213)
        at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
        at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
        at org.springframework.boot.context.event.EventPublishingRunListener.starting(EventPublishingRunListener.java:74)
        at org.springframework.boot.SpringApplicationRunListeners.starting(SpringApplicationRunListeners.java:47)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:305)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
        at com.jdkhome.example.Application.main(Application.java:12)

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':bootRun'.
> Process 'command '/Library/Java/JavaVirtualMachines/jdk-11.0.3.jdk/Contents/Home/bin/java'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.5.1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 1s
4 actionable tasks: 1 executed, 3 up-to-date

Context

see https://stackoverflow.com/questions/51644795/slf4j-multiple-slf4j-bindings-with-gradle-plugin
But it doesn't really solve the problem

Steps to Reproduce

https://github.com/jdkhome/multiple-SLF4J-bindings-with-Gradle-Plugin

Your Environment

jdk 11
gardle 6.5.1

[ljacomet]

Thank you for your interest in Gradle!

Please ask such a usage question on https://discuss.gradle.org or https://stackoverflow.com where to get answers by the community of Gradle users.

If, after investigation, it turns out to be a Gradle bug or missing feature, please file another issue describing the problem or use case and add a reproducer.

---

Your reproducer includes the plugin org.gradle.kotlin.kotlin-dsl. This plugin is to be used when developing Gradle logic which should not have an intersection with a Spring Boot software component.

Removing that should resolve the issue you face.