java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils

GitHub | ChenJingLei | 10 months ago
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  1. 0

    NoClassDefFoundError: org/apache/commons/lang/StringUtils

    GitHub | 12 months ago | moonlightheng
    java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils
  2. 0

    有些代码没有更新到Maven库中

    GitHub | 10 months ago | ChenJingLei
    java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils
  3. 0

    版本号`0.5.3` - java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils

    GitHub | 4 months ago | hocgin
    java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils
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  5. 0
    samebug tip
    A few things cause this exception: 1) Check if you have all jars and if they're in the correct path when running. 2) Your classpath might be broken, you can define it in the command line with "java -cp yourClassPath" or at your IDE if you're using one.

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Root Cause Analysis

  1. java.lang.ClassNotFoundException

    org.apache.commons.lang.StringUtils

    at java.net.URLClassLoader.findClass()
  2. Java RT
    ClassLoader.loadClass
    1. java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    2. java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    3. sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    4. java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    4 frames
  3. us.codecraft.webmagic
    CountableThreadPool$1.run
    1. us.codecraft.webmagic.downloader.HttpClientDownloader.getHtmlCharset(HttpClientDownloader.java:212)
    2. us.codecraft.webmagic.downloader.HttpClientDownloader.getContent(HttpClientDownloader.java:194)
    3. us.codecraft.webmagic.downloader.HttpClientDownloader.handleResponse(HttpClientDownloader.java:182)
    4. us.codecraft.webmagic.downloader.HttpClientDownloader.download(HttpClientDownloader.java:96)
    5. us.codecraft.webmagic.Spider.processRequest(Spider.java:409)
    6. us.codecraft.webmagic.Spider$1.run(Spider.java:322)
    7. us.codecraft.webmagic.thread.CountableThreadPool$1.run(CountableThreadPool.java:74)
    7 frames
  4. Java RT
    Thread.run
    1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    3. java.lang.Thread.run(Thread.java:745)
    3 frames