java.lang.ClassNotFoundException

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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.

tip

If you're using Hibernate, this indicates you're missing FasterXML Classmate dependency, which you can add to your dependencies. To add it, the groupId is com.fasterxml and artifactId is Classmate.

tip

Check if you didn't forget to instantiate your topic in the kafka broker.

tip

NoClassDefFoundError means java has failed to find a class you're trying to instantiate, look if you've added the class you're trying to instantiate to the dependencies.

tip

You need to add httpcore to your dependencies. Try adding version 4.3 or further.

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Needs to add netty-transport-native-epoll with a OS classifier to the classpath, it's not included in netty-all

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This might be an issue with the file location in the Spark submit command. Try it with "spark-submit --master spark://master:7077 hello_world_from_pyspark.py {file location}"

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  • Re: Dropwizard 0.9.2 issue related to jersey 1.x
    via by Evan Meagher,
  • Graphs in swt exception
    via Stack Overflow by user3061943
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  • NoClassDefFound Exception Spark Streaming
    via Stack Overflow by Dawn06
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  • GitHub comment 363#238374935
    via GitHub by nebhale
    ,
  • visual-c++: mai 2015
    via by Unknown author,
    • java.lang.ClassNotFoundException: com.sun.jersey.core.provider.jaxb.AbstractRootElementProvider at java.net.URLClassLoader.findClass(URLClassLoader.java:381)[na:1.8.0_45] at java.lang.ClassLoader.loadClass(ClassLoader.java:424)[na:1.8.0_45] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)[na:1.8.0_45] at java.lang.ClassLoader.loadClass(ClassLoader.java:357)[na:1.8.0_45]

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