Thomas Graves created SPARK-8574:
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Summary: org/apache/spark/unsafe doesn't honor the java
source/target versions
Key: SPARK-8574
URL: https://issues.apache.org/jira/browse/SPARK-8574
Project: Spark
Issue Type: Bug
Components: Build
Affects Versions: 1.4.0
Reporter: Thomas Graves
I built spark using jdk8 and the default source compatibility in the pom is 1.6
so I expected to be able to run Spark with jdk7, but if fails because the
unsafe code doesn't seem to be honoring the source/target compatibility options
set in the top level pom.
Exception in thread "main" java.lang.UnsupportedClassVersionError:
org/apache/spark/unsafe/memory/MemoryAllocator : Unsupported major.minor
version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at org.apache.spark.SparkEnv$.create(SparkEnv.scala:392)
at org.apache.spark.SparkEnv$.createExecutorEnv(SparkEnv.scala:211)
at
org.apache.spark.executor.CoarseGrainedExecutorBackend$$anonfun$run$1.apply$mcV$sp(CoarseGrainedExecutorBackend.scala:180)
at
org.apache.spark.deploy.SparkHadoopUtil.runAsSparkUser(SparkHadoopUtil.scala:74)
at
org.apache.spark.executor.CoarseGrainedExecutorBackend$.run(CoarseGrainedExecutorBackend.scala:146)
at
org.apache.spark.executor.CoarseGrainedExecutorBackend$.main(CoarseGrainedExecutorBackend.scala:245)
at
org.apache.spark.executor.CoarseGrainedExecutorBackend.main(CoarseGrainedExecutorBackend.scala)
15/06/23 19:48:24 INFO storage.DiskBlockManager: Shutdown hook called
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