Affects PMD Version: 7.19.0

Rule: UnusedLocalVariable

Description:
using an instanceof with a pattern variable inside a for-each without brackets gives a false positive

Code Sample demonstrating the issue:

public void test() {
	Object[] array = {1, "a"};
	for(Object o : array)
		if(o instanceof String s)
			System.out.println(s);
	return;
}

Expected outcome:
Variable s should not be reported as unused. If i use the brackets on the for-each, the warning disappears.

PMD reports a violation at line "instanceof", but that's wrong. That's a false positive.

Running PMD through: Maven

With this code the warning is not reported:

public void test() {
	Object[] array = {1, "a"};
	for(Object o : array) {
		if(o instanceof String s)
			System.out.println(s);
	}
	return;
}