PreconditionsExpensiveString
Second argument to Preconditions.* is a call to String.format(), which can be unwrapped

The problem

Preconditions checks take an error message to display if the check fails. The error message is rarely needed, so it should either be cheap to construct or constructed only when needed. This check ensures that these error messages are not constructed using expensive methods that are evaluated eagerly.

Prefer this:

checkNotNull(foo, "hello %s", name);

instead of this:

checkNotNull(foo, String.format("hello %s", name));

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("PreconditionsExpensiveString") to the enclosing element.