java.lang.NoClassDefFoundError: scala/reflect/ClassManifest

hortonworks.com | 8 months ago
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    Kafka Consumer in Java

    Stack Overflow | 2 years ago | Zerbraxi
    java.lang.NoClassDefFoundError: org/apache/log4j/Category
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    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.
  4. 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

    scala.reflect.ClassManifest

    at java.net.URLClassLoader$1.run()
  2. Java RT
    ClassLoader.loadClass
    1. java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    2. java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    3. java.security.AccessController.doPrivileged(Native Method)
    4. java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    5. java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    6. java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    6 frames
  3. Apache Kafka
    ConsumerConfig.<init>
    1. kafka.utils.Log4jController$.<init>(Log4jController.scala:29)
    2. kafka.utils.Log4jController$.<clinit>(Log4jController.scala)
    3. kafka.utils.Logging$class.$init$(Logging.scala:29)
    4. kafka.utils.VerifiableProperties.<init>(VerifiableProperties.scala:24)
    5. kafka.consumer.ConsumerConfig.<init>(ConsumerConfig.scala:78)
    5 frames
  4. net.mynet
    ReadFileConsumer.main
    1. net.mynet.ReadFileConsumer.main(ReadFileConsumer.java:42)
    1 frame
  5. Java RT
    Method.invoke
    1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    4. java.lang.reflect.Method.invoke(Method.java:606)
    4 frames
  6. Spark
    SparkSubmit.main
    1. org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:665)
    2. org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:170)
    3. org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:193)
    4. org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:112)
    5. org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
    5 frames