Incorrect 'DateTimeFormat' pattern

Reports incorrect date time format patterns.

The following errors are reported:

Unsupported pattern letters, like "TT"
Using reserved characters, like "#"
Incorrect use of padding
Unbalanced brackets
Incorrect amount of consecutive pattern letters

Examples:

  DateTimeFormatter.ofPattern("[][]]"); // Closing ']' without previous opening '['
  DateTimeFormatter.ofPattern("TT"); // Illegal pattern letter 'T'
  DateTimeFormatter.ofPattern("{"); // Use of reserved character '{'
  DateTimeFormatter.ofPattern("MMMMMM"); // Too many consecutive pattern letters 'M'

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IncorrectDateTimeFormat

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Settings or Preferences | Editor | Inspections | Java | Probable bugs

New in 2022.3

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.2, Qodana for JVM 2024.2,
Can be installed with plugin:	Java, 242.22892

Last modified: 11 September 2024