ClassNotFound Exception While running java program from apache Spark

Question

I have Compiled Java program and attempted to run using spark but it is showing ClassNotFound Exception even if class file exists there.

    package org.apache.spark.examples;

    import org.apache.spark.SparkConf;
    import org.apache.spark.api.java.JavaRDD;
    import org.apache.spark.api.java.JavaSparkContext;
    import org.apache.spark.api.java.function;  

    public final class JavaHelloWorld
    {
         public static void main(String args[])throws Exception
         {

         SparkConf sparkConf = new SparkConf().setAppName("JavaSparkPi");
         JavaSparkContext jsc = new JavaSparkContext(sparkConf);
         System.out.println("Hello World... Niyat From Apache Spark");
         }
    }

It would be better if you post your code and stack trace in text instead of image. — Naman Gala
– Naman Gala, Commented Aug 4, 2015 at 6:36

Fran Montero · Accepted Answer · 2015-08-04 06:37:51Z

2

You have to write the exact name of the class, you have the initial j lowercase:

JavaHelloWorld

answered Aug 4, 2015 at 6:37

Fran Montero

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2 Comments

Fran Montero Over a year ago

Is the class inside the spark-examples-1.1.10-hadoop1.0.4.jar? Because it is not being found.

Niyat patel Over a year ago

Yes. It is inside the spark-examples-1.1.10

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