Hi,
I’m trying to run a simple test program to access Spark though Java. I’m
using JDK 1.8, and Spark 1.5. I’m getting an Exception from the
JavaSparkContext constructor. My initialization code matches all the sample
code I’ve found online, so not sure what I’m doing wrong.
Here is my code:
SparkConf conf = new SparkConf().setAppName("Simple Application");
conf.setMaster("local");
conf.setAppName("my app");
JavaSparkContext sc = new JavaSparkContext(conf);
The stack trace of the Exception:
java.lang.ExceptionInInitializerError: null
at java.lang.Class.getField(Class.java:1690)
at
org.apache.spark.util.SparkShutdownHookManager.install(ShutdownHookManager.scala:220)
at
org.apache.spark.util.ShutdownHookManager$.shutdownHooks$lzycompute(ShutdownHookManager.scala:50)
at
org.apache.spark.util.ShutdownHookManager$.shutdownHooks(ShutdownHookManager.scala:48)
at
org.apache.spark.util.ShutdownHookManager$.addShutdownHook(ShutdownHookManager.scala:189)
at
org.apache.spark.util.ShutdownHookManager$.<init>(ShutdownHookManager.scala:58)
at
org.apache.spark.util.ShutdownHookManager$.<clinit>(ShutdownHookManager.scala)
at
org.apache.spark.storage.DiskBlockManager.addShutdownHook(DiskBlockManager.scala:147)
at
org.apache.spark.storage.DiskBlockManager.<init>(DiskBlockManager.scala:54)
at org.apache.spark.storage.BlockManager.<init>(BlockManager.scala:75)
at org.apache.spark.storage.BlockManager.<init>(BlockManager.scala:173)
at org.apache.spark.SparkEnv$.create(SparkEnv.scala:345)
at org.apache.spark.SparkEnv$.createDriverEnv(SparkEnv.scala:193)
at org.apache.spark.SparkContext.createSparkEnv(SparkContext.scala:276)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:441)
at
org.apache.spark.api.java.JavaSparkContext.<init>(JavaSparkContext.scala:61)
at
edu.harvard.iq.text.core.spark.SparkControllerTest.testMongoRDD(SparkControllerTest.java:63)
Thanks,
Ellen
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