Clone this repo:
  1. 982fe20 Tweak links to point to newer versions. by cpovirk · 16 hours ago master
  2. a2df97f [StatementSwitchToExpressionSwitch] fix bug where `case null` can sometimes be missing from generated auto-fix by markbrady · 5 days ago
  3. e691be5 Fix (behind a flag) a silly bug in RedundantSetterCall. by ghm · 5 days ago
  4. ce1a422 Add `Durations.wait()` to `WaitMatchers.waitMethodWithTimeout` (and make them `CONSTANT_CASE`). by Kurt Alfred Kluever · 7 days ago
  5. da03fea Update MethodCanBeStatic to be able to detect and trigger on Guice @Provides methods. by Error Prone Team · 2 weeks ago

Error Prone

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

Getting Started

Our documentation is at errorprone.info.

Error Prone works with Bazel, Maven, Ant, and Gradle. See our installation instructions for details.

Developing Error Prone

Developing and building Error Prone is documented on the wiki.

Links