peacewong opened a new issue #1250:
URL: https://github.com/apache/incubator-linkis/issues/1250
**Describe the bug**
Hive and Spark EC have a ClassNotFoundException bug when using jar UDF.
error info:
```
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException:
*.CardNoFirstEightMask
at
org.apache.hadoop.hive.ql.udf.generic.GenericUDFBridge.getUdfClass(GenericUDFBridge.java:134)
```
**To Reproduce**
Steps to reproduce the behavior:
1. create udf
2. use udf by hql or sql
3. See error
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