Clone this repo:
  1. a92a0d5 RedundantOverride: match redundant overrides that can be removed, e.g.: by ghm · 5 days ago master
  2. 1d36eb3 Don't consider annotated type variable uses when inferring nullness qualifiers for type variables. by kmb · 5 days ago
  3. 25ebf01 Update SuppressionInfo to look for @Generated annotations on top level classes when visiting CompilationUnitTrees. by ghm · 5 days ago
  4. 9016692 Unused: fix @Parameters check. by ghm · 5 days ago
  5. d452b6b Remove pointless overrides that delegate to super. by ghm · 5 days 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.

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