Exception in thread "main" java.lang.NoClassDefFoundError: dev/failsafe/Poli

### 异常处理：NoClassDefFoundError #### 1. 概述在Java开发中，当我们的代码尝试使用某个类，但是在编译或运行时找不到该类的定义时，就会抛出`NoClassDefFoundError`异常。这种情况通常是由于类路径问题导致的。本文将介绍在出现`NoClassDefFoundError`异常时，你应该如何解决这个问题。我们将分步骤讲解整个过程，并提供相应的代

类文件

jar包

环境变量

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mob649e8157ebce

2023-08-03 19:26:44

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Exception in thread "main " java.lang.NoClassDefFoundError:

通过cmd进入到当前路径，输入javac XXX.java命令，编译成功在输入java XXX命令，就出现 Exception in thread "main " java.lang.NoClassDefFoundError:XXX classpath要么就不要加，如果要加一

java

职场

虚拟机

thread

休闲

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sun45666

2011-12-13 13:12:38

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Exception in thread “main“ java.lang.NoClassDefFoundError: scala/Cloneable

Spark环境加入后启动报错Exception in thread “main” java.lang.NoClassDefFoun前环境: scala 2.13.5解决将 scala 2.13.5 环境降低到2.12.13解决该问题

scala

spark

java

原创

图图是只猫

2022-08-12 14:19:12

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Exception in thread "main" java.lang.NoClassDefFoundError

在eclipse中编辑的java源码，编译成功后，产生的class文件在项目的bin文件夹中。但是进入class文件所在夹中，运行java 类名命令显示结果，却出现标题显示的错误。解决的方法是将文件的路径带入，在eclipse中包和源码的结构对应的了文件夹的结构，所以在CMD中返回到bin文件夹，运行java 包名/类名就可以正确显示，不会出现标题错误了。

java

问题

入门

原创

hspt123

2016-09-17 17:11:35

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Exception in thread "main" java.lang.NoClassDefFoundError

# 如何解决 "Exception in thread "main" java.lang.NoClassDefFoundError" ## 1. 问题概述在Java开发中，经常会遇到 "Exception in thread "main" java.lang.NoClassDefFoundError" 异常。这个异常通常是由于缺少类文件或者类文件的路径配置不正确所引起的。本文将向你介绍如何解决

类文件

java

包名

原创

mob649e8158ed1f

2023-08-18 03:54:21

10000+阅读

Exception in thread “main“ java.lang.NoClassDefFoundError: org/springframework/boot/SpringApplicatio

运行主类报错如下："C:\Program Files\Java\jdk1.8.0_241\bin\java.exe""-javaagent:C:\work\download\baidu\pan\657654 ideaiu Portable\ideaIU_2020.2.4_Portable\ideaIU_2020.2.4_Portable\lib\idea_rt.jar=61556:C:\work\download\baidu\pan\657654 ideaiu Portable\ideaIU_202

java

jar

ide

spring

maven

原创

wx61133eeec1457

2021-08-13 10:22:44

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【Spark】Exception in thread “main“ java.lang.BootstrapMethodError: java.lang.NoClassDefFoundError: sc

版本匹配问题！参见：Spark代码提交到Yarn报错

spark

匹配问题

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阿呆小记

2022-08-12 10:15:24

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Exception in thread “main“ java.lang.NoClassDefFoundError: opennlp/tools/tokenize/TokenizerModel

缺少库。解决办法：下载。Download - Apache OpenNLPApache OpenNLP is a machine learning based toolkit for the processing of natural language text.http://opennlp.apache.org/download.html下载后解，找到相应的jar导入即可。

java

apache

html

sed

原创

柳鲲鹏泰山

2022-01-28 12:49:21

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Linux：Exception in thread "main" java.lang.NoClassDefFoundError

Java programming problem in linux env: Exception in thread "main" java.lang.NoClassDefFoundError Most people always have the following problem when run their java programs under linux

java

Linux

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休闲

原创

tianya23

2011-09-13 23:15:24

3442阅读

Exception in thread “main“ java.lang.NoClassDefFoundError: opennlp/tools/tokenize/TokenizerModel

缺少库。解决办法：下载。Download - Apache OpenNLPApache OpenNLP is a machine learning based toolkit for the processing of natural language text.http://opennlp.apache.org/download.html下载后解，找到相应的jar导入即可。

java

apache

html

sed

jar

原创

柳鲲鹏泰山

2021-10-08 16:00:04

262阅读

Exception in thread “main“ java.lang.NoClassDefFoundError: org/springframework/util/Assert

Idea项目启动异常Exception in thread “main” java.lang.NoClassDefFoundError:org/springframework/util/Assert原因：由于切换maven的settings文件产生的异常解决：重启idea

ide

java

maven

原创

图图是只猫

2022-08-12 14:18:56

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Exception in thread “main“ java.lang.NoClassDefFoundError: org/springframework/boot/SpringApplicatio

通过确保 spring-boot-maven-plugin 正确配置并重新打包，可以生成包含所有依赖的 Fat Jar，解决 NoClassDefFoundError 问题。你遇到的错误 NoClassDefF

java

pycharm

开发语言

spring

xml

原创

学技术赢未来

2月前

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Exception in thread "main" java.lang.NoClassDefFoundError错误总结

最近在强化自己的java基础，尝试不用任何IDE工具，编写并运行一个简单的java程序，结果不试不知道，一试吓一跳，其中就被“ Exception in thread "main" java.lang.NoClassDefFoundError”的难住了。具体解决办法见原文：http://blog.csdn.net/xw13106209/articl

Java

thread

exception

原创

lipslive

2015-03-26 21:29:50

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Exception in thread “main“ java.lang.NoClassDefFoundError: org/apache/velocity/context/Context at

错误原因缺少模板依赖  <dependency> <groupId>org.apache.velocity</groupId> <artifactId>velocity-engine-core</artifactId> <version>2.0</version> </d

ci

apache

模板引擎

原创

已注销

2024-03-26 10:45:17

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Exception in thread “main“ java.lang.NoClassDefFoundError: com/sun/mail/util/MailLogger

<dependency>

java

原创

szlsay

2022-09-13 12:21:19

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Exception in thread "main" java.lang.NoClassDefFoundError: antlr/ANTLRException

Exception in thread "main" java.lang.NoClassDefFoundError: antlr/ANTLRException at org.hibernate.hql.ast.ASTQueryTranslatorFactory.createQueryTranslator(ASTQueryTranslatorFactory.java

职场

生活

休闲

antlr/ANTLRException

原创

QYin

2010-12-09 15:07:36

1756阅读

解决Exception in thread “main” java.lang.NoClassDefFoundError: org/codehaus/janino/InternalCompilerException

问题描述spark读取hdfs文件时候报错解决方法 <dependency> <groupId>org.codehaus.janino</groupId> <artifactId>janino</artifactId> <version>3.0.8</version> </dependency>— ...

解决方法

spark

.net

hdfs

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mob604756eedb0b

2021-07-27 11:51:00

2413阅读

2评论

exception in thread main java.lang.NoClassDefFoundError wrong name解决方法

当不含包层次的HelloWorld.java代码（此时程序运行正常） [java] view plain copy public class HelloWorld{ public static void main(String[] args) { System.out.println("Hello

java

大小写

当前目录

类文件

错误信息

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mob60475702efd6

2016-03-10 17:18:00

493阅读

2评论

Exception in thread “main“ java.lang.NoClassDefFoundError: org/apache/spark/sql/SparkSession$

有个项目，依赖了jar包A，然后A又依赖B，B又依

spark

java

大数据

ide

spring

原创

红目香薰

2022-08-14 00:57:42

564阅读

jenkins Exception in thread "main" java.lang.NoClassDefFoundError: java/util

### 如何解决"jenkins Exception in thread "main" java.lang.NoClassDefFoundError: java/util"错误作为一名经验丰富的开发者，我将帮助你解决"jenkins Exception in thread "main" java.lang.NoClassDefFoundError: java/util"错误。首先，让我们先了解

Jenkins

java

Google

原创

mob649e815ecee0

2023-08-29 11:14:10

480阅读

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Exception in thread "main" java.lang.NoClassDefFoundError: dev/failsafe/Poli

Exception in thread "main" java.lang.NoClassDefFoundError: dev/failsafe/Poli

Exception in thread "main " java.lang.NoClassDefFoundError:

Exception in thread “main“ java.lang.NoClassDefFoundError: scala/Cloneable

Exception in thread "main" java.lang.NoClassDefFoundError

Exception in thread "main" java.lang.NoClassDefFoundError

Exception in thread “main“ java.lang.NoClassDefFoundError: org/springframework/boot/SpringApplicatio

【Spark】Exception in thread “main“ java.lang.BootstrapMethodError: java.lang.NoClassDefFoundError: sc

Exception in thread “main“ java.lang.NoClassDefFoundError: opennlp/tools/tokenize/TokenizerModel

Linux：Exception in thread "main" java.lang.NoClassDefFoundError

Exception in thread “main“ java.lang.NoClassDefFoundError: opennlp/tools/tokenize/TokenizerModel

Exception in thread “main“ java.lang.NoClassDefFoundError: org/springframework/util/Assert

Exception in thread “main“ java.lang.NoClassDefFoundError: org/springframework/boot/SpringApplicatio

Exception in thread "main" java.lang.NoClassDefFoundError错误总结

Exception in thread “main“ java.lang.NoClassDefFoundError: org/apache/velocity/context/Context at

Exception in thread “main“ java.lang.NoClassDefFoundError: com/sun/mail/util/MailLogger

Exception in thread "main" java.lang.NoClassDefFoundError: antlr/ANTLRException

解决Exception in thread “main” java.lang.NoClassDefFoundError: org/codehaus/janino/InternalCompilerException

exception in thread main java.lang.NoClassDefFoundError wrong name解决方法

Exception in thread “main“ java.lang.NoClassDefFoundError: org/apache/spark/sql/SparkSession$

jenkins Exception in thread "main" java.lang.NoClassDefFoundError: java/util

beeline Exception in thread "main" java.lang.NoClassDefFoundError: org/apach

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/flink/

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/veloci

【MongoDB测试所遇到的Exception in thread “main“ java.lang.NoClassDefFoundError问题】

Exception in thread "main" java.lang.NoClassDefFoundError: javax/transaction/Syn

Exception in thread "main" java.lang.NoClassDefFoundError: org/codehaus/plex

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop

Exception in thread "main" java.lang.NoClassDefFoundError: sun/io/UnknownCha

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/common

Exception in thread "main " java.lang.NoClassDefFoundError