Incorrect 'MessageFormat' pattern

Reports incorrect message format patterns or incorrect indexes of placeholders

The following errors are reported:

Unparsed or negative index
Unclosed brace
Unpaired quote. In this case, a part of a pattern may not be used
Probably incorrect number of quotes
Incorrect lower bound of nested choice patterns
Incorrect indexes of placeholders. In this case, a placeholder may not be substituted or an argument may not be used

Examples:

  MessageFormat.format("{wrong}", 1); // incorrect index
  MessageFormat.format("{0", 1); // Unmatched brace
  MessageFormat.format("'{0}", 1); // Unpaired quote
  MessageFormat.format("It''''s {0}", 1); // "It''s" will be printed, instead of "It's"
  MessageFormat.format("{0}", 1, 2); // The argument with index '1' is not used in the pattern

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IncorrectMessageFormat

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

New in 2023.2

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