Make ReturnsNullCollection and ProvidesNull use hasDefinitelyNullBranch. Update ReturnsNullCollection and ProvidesNull to use NullnessUtils.hasDefinitelyNullBranch instead of looking only for null literals, allowing them to flag conditional null expressions (e.g., return foo ? bar : null). Also make NullnessUtils and hasDefinitelyNullBranch public to support these checks. PiperOrigin-RevId: 954810744
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
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