in core/src/main/java/org/apache/commons/functor/adapter/FullyBoundNullaryPredicate.java [84:97]
public int hashCode() {
int hash = "FullyBoundNullaryPredicate".hashCode();
hash <<= 2;
hash ^= predicate.hashCode();
hash <<= 2;
if (null != left) {
hash ^= left.hashCode();
}
hash <<= 2;
if (null != right) {
hash ^= right.hashCode();
}
return hash;
}