error prone

Catch common Java mistakes as compile-time errors

google
5903
672
Java

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