[HIVE-14759] GenericUDF.getFuncName breaks with UDF Classnames less than 10 characters

• Type: Bug
• Status: Patch Available
• Priority: Trivial
• Resolution: Unresolved
• Affects Version/s: 2.1.0
• Component/s: UDF
• Labels: pull-request-available
• Assignee: Clemens Valiente
• Reporter: Clemens Valiente
• Created: 14/Sep/16 15:22
• Updated: 24/Jun/20 00:28

Description

return getClass().getSimpleName().substring(10).toLowerCase();

causes

java.lang.StringIndexOutOfBoundsException: String index out of range: -2
    at java.lang.String.substring(String.java:1875)
    at org.apache.hadoop.hive.ql.udf.generic.GenericUDF.getFuncName(GenericUDF.java:258)

if the Classname of my UDF is less than 10 characters.
this was probably to remove "GenericUDF" from the classname but causes issues if the class doesn't start with it.

Issue Links

• links to: GitHub Pull Request #101
• links to: GitHub Pull Request #101