src/main/java/com/workplacesystems/utilsj/collections/TransactionalHashMap.java
static boolean eq(Object x, Object y)
    {
        return x == y || x.equals(y);
    }
static boolean eq(Object x, Object y)
    {
        return x == y || x.equals(y);
    }
Check for equality of non-null reference x and possibly-null y.