score:0
You need to import the missing libraries like below
import org.apache.spark.api.java.JavaPairRDD;
import org.apache.spark.api.java.function.FlatMapFunction;
import org.apache.spark.api.java.function.Function2;
import org.apache.spark.api.java.function.PairFunction;
Eclipse provides shortcut Ctrl+Shft+O for getting all missing imports.
Source: stackoverflow.com
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