org.apache.spark.SparkException: Only one SparkContext may be running in this JVM (see SPARK-2243). To ignore this error, set spark.driver.allowMultipleContexts = true. The currently running SparkContext was created at: org.apache.spark.SparkContext.<init>(SparkContext.scala:80) org.apache.spark.streaming.StreamingContext$.createNewSparkContext(StreamingContext.scala:836) org.apache.spark.streaming.StreamingContext.<init>(StreamingContext.scala:84) org.apache.spark.streaming.StreamingContextSuite.createValidCheckpoint(StreamingContextSuite.scala:818) org.apache.spark.streaming.JavaAPISuite.testContextGetOrCreate(JavaAPISuite.java:1825) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:497) org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)

sbt.ForkMain$ForkError: org.apache.spark.SparkException: Only one SparkContext may be running in this JVM (see SPARK-2243). To ignore this error, set spark.driver.allowMultipleContexts = true. The currently running SparkContext was created at:
org.apache.spark.SparkContext.<init>(SparkContext.scala:80)
org.apache.spark.streaming.StreamingContext$.createNewSparkContext(StreamingContext.scala:836)
org.apache.spark.streaming.StreamingContext.<init>(StreamingContext.scala:84)
org.apache.spark.streaming.StreamingContextSuite.createValidCheckpoint(StreamingContextSuite.scala:818)
org.apache.spark.streaming.JavaAPISuite.testContextGetOrCreate(JavaAPISuite.java:1825)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:497)
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.apache.spark.SparkContext$$anonfun$assertNoOtherContextIsRunning$2.apply(SparkContext.scala:2231)
	at org.apache.spark.SparkContext$$anonfun$assertNoOtherContextIsRunning$2.apply(SparkContext.scala:2227)
	at scala.Option.foreach(Option.scala:257)
	at org.apache.spark.SparkContext$.assertNoOtherContextIsRunning(SparkContext.scala:2227)
	at org.apache.spark.SparkContext$.markPartiallyConstructed(SparkContext.scala:2300)
	at org.apache.spark.SparkContext.<init>(SparkContext.scala:89)
	at org.apache.spark.streaming.StreamingContext$.createNewSparkContext(StreamingContext.scala:836)
	at org.apache.spark.streaming.StreamingContext.<init>(StreamingContext.scala:84)
	at org.apache.spark.streaming.api.java.JavaStreamingContext.<init>(JavaStreamingContext.scala:138)
	at org.apache.spark.streaming.LocalJavaStreamingContext.setUp(LocalJavaStreamingContext.java:35)
	at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runners.Suite.runChild(Suite.java:128)
	at org.junit.runners.Suite.runChild(Suite.java:27)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
	at com.novocode.junit.JUnitRunner$1.execute(JUnitRunner.java:132)
	at sbt.ForkMain$Run$2.call(ForkMain.java:296)
	at sbt.ForkMain$Run$2.call(ForkMain.java:286)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)