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

Google Groups | Jeremy Cox | 11 months ago
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  1. 0

    Voldemort -- New Error for Server StartUp

    Google Groups | 11 months ago | Jeremy Cox
    java.lang.NoClassDefFoundError: org/apache/log4j/Logger
  2. 0

    GitHub comment 351#207625846

    GitHub | 1 year ago | arunthirupathi
    java.lang.NoClassDefFoundError: org/apache/log4j/Logger
  3. 0
    samebug tip
    Check if you didn't forget to instantiate your topic in the kafka broker.
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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.
  6. 0
    samebug tip
    If you're using Hibernate, this indicates you're missing FasterXML Classmate dependency, which you can add with the following: <groupId>com.fasterxml</groupId> <artifactId>classmate</artifactId> <version>1.0</version>

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Root Cause Analysis

  1. java.lang.ClassNotFoundException

    org.apache.log4j.Logger

    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. voldemort.common.service
    AbstractService.<clinit>
    1. voldemort.common.service.AbstractService.<clinit>(AbstractService.java:36)
    1 frame