Not compatible with Spring Boot 1.3.3 (upgrading logback to 1.1.5)

Hi guys,

The Spring Boot project has released version 1.3.3 and they have upgraded logback from 1.1.3 to 1.1.5 (see the relevant commit). This seems not to be compatible with the current version of logstash-logback-encoder.

Starting my spring boot 1.3.3 sample app, I have the following stacktrace and the app refuse to boot.

Failed to instantiate [ch.qos.logback.classic.LoggerContext]
Reported exception:
java.lang.AbstractMethodError: ch.qos.logback.classic.pattern.EnsureExceptionHandling.process(Lch/qos/logback/core/pattern/Converter;)V
    at ch.qos.logback.core.pattern.PatternLayoutBase.start(PatternLayoutBase.java:88)
    at ch.qos.logback.classic.encoder.PatternLayoutEncoder.start(PatternLayoutEncoder.java:28)
    at ch.qos.logback.classic.BasicConfigurator.configure(BasicConfigurator.java:50)
    at ch.qos.logback.classic.util.ContextInitializer.autoConfig(ContextInitializer.java:164)
    at org.slf4j.impl.StaticLoggerBinder.init(StaticLoggerBinder.java:85)
    at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:55)
    at org.slf4j.LoggerFactory.bind(LoggerFactory.java:143)
    at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:122)
    at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:378)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:328)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:349)
    at io.jhipster.dockermicroservices.T1App.<clinit>(T1App.java:32)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(AbstractRunMojo.java:478)
    at java.lang.Thread.run(Thread.java:745)

• Removing the dependency to logstash-logback-encoder fixes it.
• Downgrading to Spring boot 1.3.2 fixes it.

Thank you in advance. Best regards, Pierre Besson

[markbigler]

Adding these lines to your pom.xml should fix the problem temporary:

    <dependency>
        <groupId>net.logstash.logback</groupId>
        <artifactId>logstash-logback-encoder</artifactId>
        <version>4.7</version>
        <exclusions>
            <exclusion>
                <groupId>ch.qos.logback</groupId>
                <artifactId>logback-core</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

[WesternGun]

I use gradle dependencyInsight --dependency logback to check the dependency tree, and I saw that, Spring Boot starter-logging 2.1.9 seems to be using logback-classic-1.1.3.

> Task :dependencyInsight
ch.qos.logback:logback-classic:1.1.3 (selected by rule)
   variant "compile" [
      org.gradle.status              = release (not requested)
      org.gradle.usage               = java-api
      org.gradle.libraryelements     = jar (compatible with: classes)
      org.gradle.category            = library (not requested)

      Requested attributes not found in the selected variant:
         org.gradle.dependency.bundling = external
         org.gradle.jvm.version         = 8
   ]

ch.qos.logback:logback-classic:1.1.3
\--- compileClasspath

ch.qos.logback:logback-classic:1.2.3 -> 1.1.3
\--- org.springframework.boot:spring-boot-starter-logging:2.1.9.RELEASE
     \--- org.springframework.boot:spring-boot-starter:2.1.9.RELEASE
          +--- compileClasspath (requested org.springframework.boot:spring-boot-starter)
          +--- org.springframework.boot:spring-boot-starter-web:2.1.9.RELEASE
          |    +--- compileClasspath (requested org.springframework.boot:spring-boot-starter-web)
          |    \--- org.springframework.boot:spring-boot-starter-websocket:2.1.9.RELEASE
          |         \--- compileClasspath
          +--- org.springframework.boot:spring-boot-starter-json:2.1.9.RELEASE
          |    +--- org.springframework.boot:spring-boot-starter-web:2.1.9.RELEASE (*)
          |    \--- org.springframework.boot:spring-boot-starter-jersey:2.1.9.RELEASE
          |         \--- compileClasspath (requested org.springframework.boot:spring-boot-starter-jersey)
          \--- org.springframework.boot:spring-boot-starter-validation:2.1.9.RELEASE
               \--- org.springframework.boot:spring-boot-starter-jersey:2.1.9.RELEASE (*)

ch.qos.logback:logback-core:1.1.3 (selected by rule)
   variant "compile" [
      org.gradle.status              = release (not requested)
      org.gradle.usage               = java-api
      org.gradle.libraryelements     = jar (compatible with: classes)
      org.gradle.category            = library (not requested)

      Requested attributes not found in the selected variant:
         org.gradle.dependency.bundling = external
         org.gradle.jvm.version         = 8
   ]

ch.qos.logback:logback-core:1.1.3
+--- compileClasspath
\--- ch.qos.logback:logback-classic:1.1.3
     +--- compileClasspath
     \--- org.springframework.boot:spring-boot-starter-logging:2.1.9.RELEASE (requested ch.qos.logback:logback-classic:1.2.3)
          \--- org.springframework.boot:spring-boot-starter:2.1.9.RELEASE
               +--- compileClasspath (requested org.springframework.boot:spring-boot-starter)
               +--- org.springframework.boot:spring-boot-starter-web:2.1.9.RELEASE
               |    +--- compileClasspath (requested org.springframework.boot:spring-boot-starter-web)
               |    \--- org.springframework.boot:spring-boot-starter-websocket:2.1.9.RELEASE
               |         \--- compileClasspath
               +--- org.springframework.boot:spring-boot-starter-json:2.1.9.RELEASE
               |    +--- org.springframework.boot:spring-boot-starter-web:2.1.9.RELEASE (*)
               |    \--- org.springframework.boot:spring-boot-starter-jersey:2.1.9.RELEASE
               |         \--- compileClasspath (requested org.springframework.boot:spring-boot-starter-jersey)
               \--- org.springframework.boot:spring-boot-starter-validation:2.1.9.RELEASE
                    \--- org.springframework.boot:spring-boot-starter-jersey:2.1.9.RELEASE (*)

And I change my logback-core to 1.1.3 and the problem is gone.

compile group: 'ch.qos.logback', name: 'logback-core', version: '1.1.3'