Could not initialize class org.apache.log4j.LogManager

最新推荐文章于 2024-02-27 19:41:31 发布
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本文介绍了解决Eclipse中Maven项目出现的包冲突问题的方法。通过定位冲突的依赖包，并在pom.xml文件中进行排除，可以有效解决此类问题。

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这个问题的原因就是他的包冲突了 在这里（eclipse maven 项目 pom文件）找到
这里写图片描述
类似 下面这样的包 over
这里写图片描述
然后排除

storm整合kafka过程中解决log4j冲突问题（Could not initialize class org.apache.log4j.Log4jLoggerFactory）
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1、在storm整合kafka后，运行storm程序，报错如下： 12:47:09.110 [Thread-26-kafkaspout-executor[3 4]] ERROR org.apache.storm.util - Async loop died! java.lang.NoClassDefFoundError: Could not initialize class org.apach...
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根据服务启动的报第一次这个java.lang.NoClassDefFoundError可知，jvm本来是要加载 SearchSourceBuilder 这个类，这个类初始化时却依赖了 log4j 的 API，而 log4j 的依赖包在项目里面有缺失，导致最后类 SearchSourceBuilder 一直无法初始化。
java.lang.NoClassDefFoundError: Could not initialize class org.apache.log4j.Log4jLoggerFactory
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（一） 现象与解决方法前些天在进行storm job的开发时候突然报了一个错误，记录一下Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.log4j.Log4jLoggerFactory当然我们的第一个反应是log4j这个包缺失（当然也有这种情况，需要首先确认），打开pom文件查看依赖，文
Could not initialize class org.apache.log4j.LogManager 报错
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<!-- mybatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.2.3</version> <exclu
Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class org.apache.logging.log4j.LogManager
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我们正在解决的是 `java.lang.NoClassDefFoundError: Could not initialize class org.apache.logging.log4j.LogManager` 错误。这个错误通常发生在 Log4j2 初始化失败时，可能的原因包括： 1. 类路径中存在冲突的...
Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class org.apache.logging.log4j.core.LoggerContext at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.createContext(ClassLoaderContextSelector.java:254) at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.locateContext(ClassLoaderContextSelector.java:218) at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:136) at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:123) at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:117) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:150) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47) at org.apache.logging.log4j.LogManager.getContext(LogManager.java:194) at org.apache.commons.logging.LogAdapter$Log4jLog.<clinit>(LogAdapter.java:155) at org.apache.commons.logging.LogAdapter$Log4jAdapter.createLog(LogAdapter.java:122) at org.apache.commons.logging.LogAdapter.createLog(LogAdapter.java:89) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:67) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:59) at org.springframework.boot.SpringApplication.<clinit>(SpringApplication.java:196) at com.zpkj.eps.outernet.OuternetApplication.main(OuternetApplication.java:21) Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.NoSuchFieldError: EMPTY_BYTE_ARRAY [in thread "main"] at org.apache.logging.log4j.core.config.ConfigurationSource.<clinit>(ConfigurationSource.java:59) at org.apache.logging.log4j.core.config.NullConfiguration.<init>(NullConfiguration.java:32) at org.apache.logging.log4j.core.LoggerContext.<clinit>(LoggerContext.java:74) at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.createContext(ClassLoaderContextSelector.java:254) at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.locateContext(ClassLoaderContextSelector.java:218) at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:136) at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:123) at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:117) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:150) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47) at org.apache.logging.log4j.LogManager.getContext(LogManager.java:194) at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:138) at org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:45) at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:48) at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:363) at reactor.util.Loggers$Slf4JLoggerFactory.getLogger(Loggers.java:205) at reactor.util.Loggers.useSl4jLoggers(Loggers.java:166) at reactor.util.Loggers.resetLoggerFactory(Loggers.java:69) at reactor.util.Loggers.<clinit>(Loggers.java:53) at reactor.core.publisher.Hooks.<clinit>(Hooks.java:550) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at com.intellij.rt.debugger.agent.DebuggerAgent.premain(DebuggerAgent.java:14) 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 sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:386) at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:401)
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好的，我现在需要帮助用户解决Java应用程序中Log4j相关的NoClassDefFoundError异常问题，具体是java.lang.NoClassDefFoundError: org.apache.logging.log4j.core.LoggerContext，并且用户提到是在Spring Boot项目中...
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包冲突 Could not initialize class org.apache.log4j.Log4jLoggerFactory 的解决方法
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