Add a @DoNotStore errorprone annotation and checker.
Warns that a value returned from a method should not be stored, but should be used directly as a parameter for another method.
E.g.
@DoNotStore boolean getValue() {
return value;
}
BAD: boolean b = getValue();
BAD: b = getValue();
GOOD: useValue(getValue());
PiperOrigin-RevId: 322494457
Error Prone is a static analysis tool for Java that catches common programming mistakes at compile-time.
public class ShortSet { public static void main (String[] args) { Set<Short> s = new HashSet<>(); for (short i = 0; i < 100; i++) { s.add(i); s.remove(i - 1); } System.out.println(s.size()); } }
error: [CollectionIncompatibleType] Argument 'i - 1' should not be passed to this method;
its type int is not compatible with its collection's type argument Short
s.remove(i - 1);
^
(see https://errorprone.info/bugpattern/CollectionIncompatibleType)
1 error
Our documentation is at errorprone.info.
Error Prone works with Bazel, Maven, Ant, and Gradle. See our installation instructions for details.
Developing and building Error Prone is documented on the wiki.