Hi, I'm using Kylin4-alpha in Hadoop3.1,when i query push down and I have a java.lang.VerifyError. I don't know how to resolve it. Error Message: ERROR [Query 6ac51965-31d9-a2da-9544-d4ad63283e75-47] service.QueryService:568 : Exception while executing query java.lang.LinkageError: loader constraint violation: when resolving method "org.apache.hadoop.mapred.JobConf.<init>(Lorg/apache/hadoop/conf/Configuration;Ljava/lang/Class;)V" the cl ass loader (instance of org/apache/kylin/ext/CustomizedWebappClassloader) of the current class, org/apache/spark/sql/execution/datasources/InMemoryFileIndex, and the class loader (i nstance of sun/misc/Launcher$AppClassLoader) for the method's defining class, org/apache/hadoop/mapred/JobConf, have different Class objects for the type org/apache/hadoop/conf/Conf iguration used in the signature
