java.lang.NoClassDefFoundError: org/apache/log4j/Level

Stack Overflow | Hanata | 3 months ago
  1. 0

    an issue with slf4j in a Java application

    Stack Overflow | 3 months ago | Hanata
    java.lang.NoClassDefFoundError: org/apache/log4j/Level
  2. 0

    Re:Re: Problem of Phoenix Hello World sample

    apache.org | 1 year ago
    java.lang.NoClassDefFoundError: org/apache/log4j/Level
  3. 0

    Re:Re: Problem of Phoenix Hello World sample

    phoenix-user | 2 years ago | 夏凉
    java.lang.NoClassDefFoundError: org/apache/log4j/Level
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  5. 0

    Restarting the Framework Results in Framework not starting

    GitHub | 2 years ago | nicgrayson
    java.lang.NoClassDefFoundError: org/apache/log4j/Level
  6. 0

    Broken with 0.3.0.RELEASE

    GitHub | 2 years ago | haggholm
    java.lang.NoClassDefFoundError: org/apache/log4j/Level

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Root Cause Analysis

  1. java.lang.ClassNotFoundException

    org.apache.log4j.Level

    at java.net.URLClassLoader$1.run()
  2. Java RT
    ClassLoader.loadClass
    1. java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    2. java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    3. java.security.AccessController.doPrivileged(Native Method)
    4. java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    5. java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    6. sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    7. java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    7 frames
  3. SLF4J API Module
    LoggerFactory.getLogger
    1. org.slf4j.LoggerFactory.bind(LoggerFactory.java:128)
    2. org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:108)
    3. org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:279)
    4. org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:252)
    5. org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:265)
    5 frames
  4. testlogger
    TestLogger.main
    1. testlogger.TestLogger.main(TestLogger.java:22)
    1 frame