从spring-boot 1.3.2升级到最近发布的1.3.3时,我们遇到了一个问题。
我们的应用程序一直在使用以下依赖项,每个依赖项都是最新的,没有问题:
<neo4j.version>2.3.2</neo4j.version>
<sdn.version>4.0.0.RELEASE</sdn.version>
<sdn.rest.version>3.4.0.RELEASE</sdn.rest.version>
<neo4j.ogm.version>1.1.5</neo4j.ogm.version>
今天我升级了我们的spring-boot和基于Spring Data Neo4j的应用程序,它通过改变pom.xml来启动并与spring-boot 1.3.2.RELEASE一起运行良好:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.2.RELEASE</version>
</parent>
到
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.3.RELEASE</version>
</parent>
这实际上是唯一的变化,应用程序现在无法启动以下错误:
...
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.core.joran.action.NestedComplexPropertyIA.end(NestedComplexPropertyIA.java:167)
at ch.qos.logback.core.joran.spi.Interpreter.callEndAction(Interpreter.java:317)
at ch.qos.logback.core.joran.spi.Interpreter.endElement(Interpreter.java:196)
at ch.qos.logback.core.joran.spi.Interpreter.endElement(Interpreter.java:182)
at ch.qos.logback.core.joran.spi.EventPlayer.play(EventPlayer.java:62)
at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:149)
at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:135)
at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:99)
at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:49)
at ch.qos.logback.classic.util.ContextInitializer.configureByResource(ContextInitializer.java:77)
at ch.qos.logback.classic.util.ContextInitializer.autoConfig(ContextInitializer.java:152)
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 com.mycompany.Application.<clinit>(Application.java:35)
正如预期的那样,返回1.3.2.RELEASE不会引起任何问题。
到目前为止搜索显示没有可追踪的踪迹。比较使用spring-boot 1.3.2.RELEASE和1.3.3.RELEASE之间的mvn dependency:tree
输出,我可以看到ch.qos.logback的瞬态依赖:logback-classic和ch.qos.logback:logback -access jar已经从1.8.3 for spring-boot 1.3.2.RELEASE更改为1.1.5 for spring-boot 1.3.3.RELEASE,而ch.qos.logback:logback-core仍为1.1.3 -boot flavors。
有没有人知道底层问题是什么(我猜测未能实例化的类已被删除或重新定位)和/或 - 更重要的是 - 我可以做些什么来解决它? / p>
答案 0 :(得分:23)
Spring Boot缺少logback-core
的一些依赖管理,允许不同的版本进入。我已经打开an issue来解决这个问题。
与此同时,您可以通过将自己的依赖关系管理添加到您的pom来避免此问题:
<dependencyManagement>
<dependencies>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>${logback.version}</version>
</dependency>
</dependencies>
</dependencyManagement>