I posted on this issue in
http://apache-spark-user-list.1001560.n3.nabble.com/How-to-access-objects-declared-and-initialized-outside-the-call-method-of-JavaRDD-td17094.html#a17150
Code starts
public class SparkUtilities extends Serializable
private transient static ThreadLocal<JavaSparkContext> threadContext;
private static String appName = "Anonymous";
essentially you need to get a context on the slave machine saving it in a
transient (non serialized) field - at least that is what you want to do in
Java
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