sbt.ForkMain$ForkError: java.lang.OutOfMemoryError: Java heap space

sbt.ForkMain$ForkError: sbt.ForkMain$ForkError: java.lang.OutOfMemoryError: Java heap space
	at org.apache.spark.mllib.feature.Word2VecModel$.org$apache$spark$mllib$feature$Word2VecModel$$buildWordVectors(Word2Vec.scala:594)
	at org.apache.spark.mllib.feature.Word2VecModel.<init>(Word2Vec.scala:491)
	at org.apache.spark.mllib.feature.Word2VecModel$SaveLoadV1_0$.load(Word2Vec.scala:620)
	at org.apache.spark.mllib.feature.Word2VecModel$.load(Word2Vec.scala:658)
	at org.apache.spark.mllib.feature.Word2VecSuite$$anonfun$5.apply$mcV$sp(Word2VecSuite.scala:104)
	at org.apache.spark.mllib.feature.Word2VecSuite$$anonfun$5.apply(Word2VecSuite.scala:94)
	at org.apache.spark.mllib.feature.Word2VecSuite$$anonfun$5.apply(Word2VecSuite.scala:94)
	at org.scalatest.Transformer$$anonfun$apply$1.apply$mcV$sp(Transformer.scala:22)
	at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85)
	at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
	at org.scalatest.Transformer.apply(Transformer.scala:22)
	at org.scalatest.Transformer.apply(Transformer.scala:20)
	at org.scalatest.FunSuiteLike$$anon$1.apply(FunSuiteLike.scala:166)
	at org.apache.spark.SparkFunSuite.withFixture(SparkFunSuite.scala:57)
	at org.scalatest.FunSuiteLike$class.invokeWithFixture$1(FunSuiteLike.scala:163)
	at org.scalatest.FunSuiteLike$$anonfun$runTest$1.apply(FunSuiteLike.scala:175)
	at org.scalatest.FunSuiteLike$$anonfun$runTest$1.apply(FunSuiteLike.scala:175)
	at org.scalatest.SuperEngine.runTestImpl(Engine.scala:306)
	at org.scalatest.FunSuiteLike$class.runTest(FunSuiteLike.scala:175)
	at org.scalatest.FunSuite.runTest(FunSuite.scala:1555)
	at org.scalatest.FunSuiteLike$$anonfun$runTests$1.apply(FunSuiteLike.scala:208)
	at org.scalatest.FunSuiteLike$$anonfun$runTests$1.apply(FunSuiteLike.scala:208)
	at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:413)
	at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401)
	at scala.collection.immutable.List.foreach(List.scala:381)
	at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)
	at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:396)
	at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:483)
	at org.scalatest.FunSuiteLike$class.runTests(FunSuiteLike.scala:208)
	at org.scalatest.FunSuite.runTests(FunSuite.scala:1555)
	at org.scalatest.Suite$class.run(Suite.scala:1424)
	at org.scalatest.FunSuite.org$scalatest$FunSuiteLike$$super$run(FunSuite.scala:1555)