flink使用hive udf函数

[酷酷的浑蛋]

Flink-1.11.1,  hive-2.2.0
在使用current_timestamp或者current_date函数时会报
Caused by: java.lang.NullPointerException
at 
org.apache.hadoop.hive.ql.udf.generic.GenericUDFCurrentTimestamp.initialize(GenericUDFCurrentTimestamp.java:51)
at 
org.apache.hadoop.hive.ql.udf.generic.GenericUDF.initializeAndFoldConstants(GenericUDF.java:141)