hashCode()
and equals()
calls on java.net.URL
objects.
URL
's equals()
and hashCode()
methods can perform a DNS lookup to resolve the host name.
This may cause significant delays, depending on the availability and speed of the network and the DNS server.
Using java.net.URI
instead of java.net.URL
will avoid the DNS lookup.
Example:
int equalsHashCode(URL url1, URL url2) {
return url1.hashCode() == url2.hashCode();
}