java.lang.IllegalStateException: Shutdown hooks cannot be modified during shutdown.

sbt.ForkMain$ForkError: java.lang.IllegalStateException: Shutdown hooks cannot be modified during shutdown.
	at org.apache.spark.util.SparkShutdownHookManager.add(ShutdownHookManager.scala:195)
	at org.apache.spark.util.ShutdownHookManager$.addShutdownHook(ShutdownHookManager.scala:153)
	at org.apache.spark.storage.DiskBlockManager.addShutdownHook(DiskBlockManager.scala:157)
	at org.apache.spark.storage.DiskBlockManager.<init>(DiskBlockManager.scala:54)
	at org.apache.spark.storage.BlockManager.<init>(BlockManager.scala:148)
	at org.apache.spark.SparkEnv$.create(SparkEnv.scala:370)
	at org.apache.spark.SparkEnv$.createDriverEnv(SparkEnv.scala:185)
	at org.apache.spark.SparkContext.createSparkEnv(SparkContext.scala:273)
	at org.apache.spark.SparkContext.<init>(SparkContext.scala:456)
	at org.apache.spark.SparkContext.<init>(SparkContext.scala:129)
	at org.apache.spark.sql.test.TestSparkSession.<init>(TestSQLContext.scala:30)
	at org.apache.spark.sql.test.SharedSparkSessionBase.createSparkSession(SharedSparkSession.scala:100)
	at org.apache.spark.sql.test.SharedSparkSessionBase.createSparkSession$(SharedSparkSession.scala:98)
	at org.apache.spark.sql.jdbc.JDBCWriteSuite.createSparkSession(JDBCWriteSuite.scala:36)
	at org.apache.spark.sql.test.SharedSparkSessionBase.initializeSession(SharedSparkSession.scala:114)
	at org.apache.spark.sql.test.SharedSparkSessionBase.initializeSession$(SharedSparkSession.scala:112)
	at org.apache.spark.sql.jdbc.JDBCWriteSuite.initializeSession(JDBCWriteSuite.scala:36)
	at org.apache.spark.sql.test.SharedSparkSessionBase.beforeAll(SharedSparkSession.scala:122)
	at org.apache.spark.sql.test.SharedSparkSessionBase.beforeAll$(SharedSparkSession.scala:121)
	at org.apache.spark.sql.jdbc.JDBCWriteSuite.org$apache$spark$sql$test$SharedSparkSession$$super$beforeAll(JDBCWriteSuite.scala:36)
	at org.apache.spark.sql.test.SharedSparkSession.beforeAll(SharedSparkSession.scala:45)
	at org.apache.spark.sql.test.SharedSparkSession.beforeAll$(SharedSparkSession.scala:43)
	at org.apache.spark.sql.jdbc.JDBCWriteSuite.beforeAll(JDBCWriteSuite.scala:36)
	at org.scalatest.BeforeAndAfterAll.liftedTree1$1(BeforeAndAfterAll.scala:212)
	at org.scalatest.BeforeAndAfterAll.run(BeforeAndAfterAll.scala:210)
	at org.scalatest.BeforeAndAfterAll.run$(BeforeAndAfterAll.scala:208)
	at org.apache.spark.sql.jdbc.JDBCWriteSuite.org$scalatest$BeforeAndAfter$$super$run(JDBCWriteSuite.scala:36)
	at org.scalatest.BeforeAndAfter.run(BeforeAndAfter.scala:258)
	at org.scalatest.BeforeAndAfter.run$(BeforeAndAfter.scala:256)
	at org.apache.spark.sql.jdbc.JDBCWriteSuite.run(JDBCWriteSuite.scala:36)
	at org.scalatest.tools.Framework.org$scalatest$tools$Framework$$runSuite(Framework.scala:314)
	at org.scalatest.tools.Framework$ScalaTestTask.execute(Framework.scala:507)
	at sbt.ForkMain$Run$2.call(ForkMain.java:296)
	at sbt.ForkMain$Run$2.call(ForkMain.java:286)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)