in src/main/java/org/apache/maven/plugins/war/Overlay.java [318:324]
public int hashCode() {
int result;
result = (getId() != null ? getId().hashCode() : 0);
result = 31 * result + (includes != null ? includes.hashCode() : 0);
result = 31 * result + (excludes != null ? excludes.hashCode() : 0);
return result;
}