in src/main/java/org/apache/sling/feature/scanner/PackageInfo.java [151:164]
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (getClass() != obj.getClass()) return false;
PackageInfo other = (PackageInfo) obj;
if (name == null) {
if (other.name != null) return false;
} else if (!name.equals(other.name)) return false;
if (optional != other.optional) return false;
if (version == null) {
if (other.version != null) return false;
} else if (!version.equals(other.version)) return false;
return true;
}