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https://issues.apache.org/jira/browse/WW-5812?focusedWorklogId=1049932&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-1049932
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ASF GitHub Bot logged work on WW-5812:
--------------------------------------
Author: ASF GitHub Bot
Created on: 24/Oct/26 16:30
Start Date: 24/Oct/26 16:30
Worklog Time Spent: 10m
Work Description: sonarqubecloud[bot] commented on PR #2057:
URL: https://github.com/apache/struts/pull/2057#issuecomment-6386677542
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Issue Time Tracking
-------------------
Worklog Id: (was: 1049932)
Time Spent: 0.5h (was: 20m)
> DateConverter rejects valid ISO yyyy-MM-dd dates when a lenient-only format
> matches first
> -----------------------------------------------------------------------------------------
>
> Key: WW-5812
> URL: https://issues.apache.org/jira/browse/WW-5812
> Project: Struts 2
> Issue Type: Bug
> Components: Core
> Reporter: Lukasz Lenart
> Priority: Major
> Fix For: 7.5.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> h2. Problem
> {{input type="date"}} always submits {{yyyy-MM-dd}}. When {{DateConverter}}
> converts that value to {{java.util.Date}}, it rejects it under some locales
> and global patterns with {{TypeConversionException: Could not parse date}},
> even though ISO {{yyyy-MM-dd}} is one of the formats it supports.
> ||Locale||{{"2026-10-24"}} → {{java.util.Date}}||
> |{{nl-NL}}|{{TypeConversionException: Could not parse date}}|
> |{{en-US}}, {{pl-PL}}|2026-10-24 (correct)|
> The format-selection loop picks the *first format that parses leniently*. It
> then re-parses the input *strictly* with that one format and throws when the
> strict parse fails. It never tries the remaining formats. Under {{nl-NL}} the
> locale SHORT pattern {{dd-MM-y}} leniently accepts {{2026-10-24}} (as 18 Apr
> 2030), so it is selected; the strict re-parse then fails, and the ISO format
> later in the list is never tried. A global {{struts.date.format}} with {{-}}
> separators, such as {{dd-MM-yyyy}}, fails the same way.
> The {{java.sql.Timestamp}} branch uses the same lenient-select /
> strict-re-parse structure. The {{java.time}} branch is not affected:
> {{DateTimeFormatter}} rejects the ISO string under these patterns, so ISO is
> reached.
> An earlier version of this ticket said the value was silently misparsed.
> Probing the real converter showed the result is a conversion error instead.
> This affects {{textfield type="date"}} bound to a {{java.util.Date}}
> property, and {{datetextfield}} in the html5 theme (WW-5778).
> h2. Proposal
> Select the format *strictly* in the {{java.util.Date}} and
> {{java.sql.Timestamp}} branches, so a format that only matches leniently is
> skipped and the remaining formats are tried.
> * Format order is unchanged, so a configured global format still takes
> precedence
> * Any input that converts today converts to the same value: a strict match is
> always a lenient match, so the first strict match is the format selected today
> * Inputs that currently throw because a lenient-only format was selected will
> now convert
> Tests: {{nl-NL}} locale and a {{dd-MM-yyyy}} global format for
> {{java.util.Date}}, the {{Timestamp}} branch, and existing inputs unchanged.
> Related: WW-5778
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