[FLINK-30984] Remove explicit cast required by 3.1.x janino

• Type: Technical Debt
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.18.0
• Component/s: Table SQL / Runtime
• Labels: pull-request-available
• Assignee: Sergey Nuyanzin
• Reporter: Sergey Nuyanzin
• Created: 09/Feb/23 08:03
• Updated: 16/Aug/23 07:16
• Resolved: 18/Jul/23 12:26

Description

This is a follow up task.

Currently in 3.1.x Janino there is  https://github.com/janino-compiler/janino/issues/188 leading to fail several Flink tests. Once it is fixed on janino side WAs should be removed together with janino's update

Issue Links

• is duplicated by: FLINK-32874 Update Janino to current
• is related to: FLINK-27995 Upgrade Janino version
• links to: GitHub Pull Request #22952