Pattern variable can be used

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 16 or higher

New in 2020.1

Inspection Details
Available in:	IntelliJ IDEA 2023.3, Qodana for JVM 2023.3
Plugin:	Java, 233.SNAPSHOT

Last modified: 13 July 2023