Reports local variable declarations that can be replaced with pattern variables, which are usually more compact.

Example:


  if (obj instanceof String) {
    String str = (String) obj;
    System.out.println(str);
  }

Can be replaced with:


  if (obj instanceof String str) {
    System.out.println(str);
  }

This inspection only reports if the language level of the project or module is 15 (Preview) or higher

New in 2020.1