java.lang.ClassNotFoundException

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tip

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}"

tip

Check if you've set a name in Application -> Run. If you didn't, the generated XML is gonna have missing information and then this exception will be thrown.

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You might've forgot to add a dependency or it's written wrong. Also, you might be using incompatible versions of Java and Hibernate. More on this here: https://goo.gl/SjSlRA

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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.

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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.

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This error means there's a class missing in your classpath during runtime. You need to create a jar with all your dependencies and have it in your classpath. Check Maven Assembly Plugin and how to add your dependencies to a jar: https://goo.gl/U2zr8k

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jsp-api and servlet-api jars must NOT be deployed by your web app. They should be marked as provided but not deployed by your app.

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

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The server rejects all jars that already belong to the server runtime (such as tomcat-**.jar, servlet**.jar). Consider substituting the CORS filter you're using for this one: https://goo.gl/ctQ7Fs

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  • Can someone verify that the enron Amazon Elastic MapReduce example still works? It appears that the way to pass arguments to a custom jar step in an Amazon ElasticMap Reduce Job Flow Step has changed. When using the bson enron example, when the custom jar step is submitted and ran in the Amazon ElasticMap Reduce service as documented, it seems that the jar step is trying to use the '-D' as a class name, and returns a 'ClassNotFoundException: -D' error as seen below: Exception in thread "main" java.lang.ClassNotFoundException: -D at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:270) at org.apache.hadoop.util.RunJar.main(RunJar.java:180) Even after removing the '-D' in the run_emr_job.sh script to see if that will allow the arguments to be passed to the jar it seems to treat the key/value pairs as an actual class, as seen below: Exception in thread "main" java.lang.ClassNotFoundException: mongo.job.input.format=com.mongodb.hadoop.BSONFileInputFormat at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:270) at org.apache.hadoop.util.RunJar.main(RunJar.java:180)
    via by KenRoy Regester,
  • Can someone verify that the enron Amazon Elastic MapReduce example still works? It appears that the way to pass arguments to a custom jar step in an Amazon ElasticMap Reduce Job Flow Step has changed. When using the bson enron example, when the custom jar step is submitted and ran in the Amazon ElasticMap Reduce service as documented, it seems that the jar step is trying to use the '-D' as a class name, and returns a 'ClassNotFoundException: -D' error as seen below: Exception in thread "main" java.lang.ClassNotFoundException: -D at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:270) at org.apache.hadoop.util.RunJar.main(RunJar.java:180) Even after removing the '-D' in the run_emr_job.sh script to see if that will allow the arguments to be passed to the jar it seems to treat the key/value pairs as an actual class, as seen below: Exception in thread "main" java.lang.ClassNotFoundException: mongo.job.input.format=com.mongodb.hadoop.BSONFileInputFormat at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:270) at org.apache.hadoop.util.RunJar.main(RunJar.java:180)
    via by KenRoy Regester,
  • How to run WordCount in Amazon EMR?
    via Stack Overflow by kylas
    ,
  • HiveServer Class Not Found Exception
    via Stack Overflow by Gazal Begum
    ,
  • command line interface is failing when i tried to load 1gb file. I tried to increase the memory using command line I am getting fallowing error. can you please advice how i can work around it? [root@bda1node03 forecast]# flags="-Xmx2048m" kite-dataset csv-import AccuWeatherForecast11222015.csv ctest1 Exception in thread "main" java.lang.ClassNotFoundException: -Xmx2048m at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at org.apache.hadoop.util.RunJar.run(RunJar.java:214) at org.apache.hadoop.util.RunJar.main(RunJar.java:136) ---------------------------------------------------------------------------- Exception in thread "main" java.lang.OutOfMemoryError: Java heap space: failed reallocation of scalar replaced objects at java.util.Arrays.copyOfRange(Arrays.java:3664) at java.lang.String.<init>(String.java:201) at java.lang.StringBuilder.toString(StringBuilder.java:407) at au.com.bytecode.opencsv.CSVParser.parseLine(CSVParser.java:250) at au.com.bytecode.opencsv.CSVParser.parseLineMulti(CSVParser.java:174) at au.com.bytecode.opencsv.CSVReader.readNext(CSVReader.java:237) at org.kitesdk.data.spi.filesystem.CSVFileReader.advance(CSVFileReader.java:174) at org.kitesdk.data.spi.filesystem.CSVFileReader.next(CSVFileReader.java:168) at org.kitesdk.shaded.com.google.common.collect.Iterators$7.computeNext(Iterators.java:648) at org.kitesdk.shaded.com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143) at org.kitesdk.shaded.com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138) at org.kitesdk.data.spi.filesystem.MultiFileDatasetReader.hasNext(MultiFileDatasetReader.java:125) at com.google.common.collect.Lists.newArrayList(Lists.java:138) at com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:256) at com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:217) at org.apache.crunch.impl.mem.collect.MemCollection.<init>(MemCollection.java:79) at org.apache.crunch.impl.mem.MemPipeline.read(MemPipeline.java:166) at org.apache.crunch.impl.mem.MemPipeline.read(MemPipeline.java:157) at org.kitesdk.tools.TransformTask.run(TransformTask.java:135) at org.kitesdk.cli.commands.CSVImportCommand.run(CSVImportCommand.java:186) at org.kitesdk.cli.Main.run(Main.java:178) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70) at org.kitesdk.cli.Main.main(Main.java:256) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.apache.hadoop.util.RunJar.run(RunJar.java:221) at org.apache.hadoop.util.RunJar.main(RunJar.java:136) [root@bda1node03 forecast]# vi test6.csv
    via by chandra s koripella,
  • Error when running in Local Mode
    via GitHub by aironm
    ,
    • java.lang.ClassNotFoundException: mongo.job.input.format=com.mongodb.hadoop.BSONFileInputFormat at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:270) at org.apache.hadoop.util.RunJar.main(RunJar.java:180)

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