I think this PR is valid, the parentheses do have a meaning here and are actually fixing a bug. In Java, the method call . operator has a higher precedence than the string concatenation + operator. Here, the arguments are only applied to the last string, before concatenation - so arguments are in fact not replaced.

See the following:

System.out.println("First %s" + ", second %s" + ", third".formatted("1", "2"));
// prints 'First %s, second %s, third'

System.out.println(("First %s" + ", second %s" + ", third").formatted("1", "2"));
// prints 'First 1, second 2, third'

Reopening.

I did not use AI.
My test results are shown in the figure.
In the original str1 + str2.formatted(beanMethod, beanName), the str2.formatted(beanMethod, beanName) part is executed first, and then its result is concatenated with str1.

我没有使用AI
我的测试结果如图，原来的 str1 + str2.formatted(beanMethod, beanName)，其中 str2.formatted(beanMethod, beanName) 会先执行，然后其结果与 str1 进行连接

Thanks @cetf9h this is now merged and backported