Tomcat异常: Unable to process Jar entry [module-info.class] from Jar

严重: Unable to process Jar entry [module-info.class] from Jar [jar:file:/D:/repository/mvn_repository/org/projectlombok/lombok/1.18.18/lombok-1.18.18.jar!/] for annotations
org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 19
	at org.apache.tomcat.util.bcel.classfile.Constant.readConstant(Constant.java:133)
	at org.apache.tomcat.util.bcel.classfile.ConstantPool.<init>(ConstantPool.java:60)
	at org.apache.tomcat.util.bcel.classfile.ClassParser.readConstantPool(ClassParser.java:209)
	at org.apache.tomcat.util.bcel.classfile.ClassParser.parse(ClassParser.java:119)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2134)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:2010)
	at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1976)
	at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1961)
	at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1319)
	at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:878)
	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:376)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5322)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

现象描述

​ SpringMVC测试案例, 在tomcat的maven插件中启动报错, 但是访问页面没有问题.

原因

​ 报错原因是由于maven依赖之间的版本冲突引起

解决方案:

​ 1, 找到版本冲突的jar, 例如当前案例,提示是: [jar:file:/D:/repository/mvn_repository/org/projectlombok/lombok/1.18.18/lombok-1.18.18.jar!/]

​ 2, 在pom文件中, 给该依赖加上作用域 provided, 限制当前jar的使用范围即可

<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.18</version>
    <scope>provided</scope>
</dependency>

​ 该jar不会在运行时参与, 所以也就不会和tomcat发生冲突了, 从而解决冲突.