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Cascade String Comparison Locale Bug
String comparisons fail for users in certain locales after Cascade generated comparison code. Case-insensitive comparisons don't work correctly in non-English locales, or locale-specific characters are not handled properly. Users report login failures or data lookup issues.
Cascade used simple .toLowerCase() without considering locale-specific case conversion rules.
Error Messages You Might See
Login failed: email comparison case-sensitive
String comparison fails for Turkish locale
Sorting order incorrect: locale-specific characters
Database COLLATE mismatch with Java String comparison
Common Causes
- Cascade used .toLowerCase() without Locale: 'ß'.toLowerCase() differs by locale
- Turkish 'i' has different uppercase rules: 'I' vs 'ı'
- Case-insensitive comparison in database doesn't match Java comparison
How to Fix It
Use locale-aware comparisons: str.toLowerCase(Locale.ENGLISH) for consistent behavior. Use .equalsIgnoreCase() which is locale-sensitive. Use COLLATE in database queries for consistent ordering. Consider Unicode normalization for combining characters. Test with non-English locales (Turkish, Greek, etc.).
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Get HelpFrequently Asked Questions
How do I compare strings safely across locales?
Use .toLowerCase(Locale.ENGLISH) for consistent behavior. Or use .equalsIgnoreCase() and test with different locales.
Why does Turkish 'i' matter?
Turkish has I/ı (dotted and dotless i). 'I'.toLowerCase() in Turkish is 'ı' not 'i'. Breaks comparisons.