RedundantLengthCheck

Reports unnecessary array length checks followed by array iteration. When array length is zero, the iteration will be skipped anyway, so there's no need to check length explicitly.

Example:

void f(String[] array) {
    if (array.length != 0) { // unnecessary check
      for (String str : array) {
        System.out.println(str);
      }
    }
  }

A quick-fix is suggested to unwrap or remove the length check:

void f(String[] array) {
    for (String str : array) {
      System.out.println(str);
    }
  }

New in 2022.3