[GROOVY-9355] Date.format provides wrong week number value (end of year bug)

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 2.5.8
• Component/s: groovy-runtime
• Assignee: Unassigned
• Reporter: Ezer Karavani
• Created: 29/Dec/19 10:55
• Updated: 29/Dec/19 11:11
• Resolved: 29/Dec/19 11:11

Description

executing the following code (on December 29, 2019) 

print new Date().format('yyyy.ww') 

will output:

2019.01 

where the expected value would be 2019.52