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Comment: Added ScalaTest issues

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--launcher.XXMaxPermSize
256M
ScalaTest Issues

If the following error occurs when running ScalaTest

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An internal error occurred during: "Launching XYZSuite.scala".
java.lang.NullPointerException

It is due to an incorrect Scala library in the classpath. To fix it, right click on project, select Build Path | Configure Build Path

  • Add Library | Scala Library
  • Remove scala-library-2.10.4.jar - lib_managed\jars

In the event of "Could not find resource path for Web UI: org/apache/spark/ui/static", it's due to a classpath issue (some classes were probably not compiled). To fix this, it sufficient to run a test from the command line:

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sbt "test-only org.apache.spark.rdd.SortingSuite"