[SNMP4J] hashCode of OID not unique

[Natterer, Thomas]

Hi,

the hash code returned by the method OID::hashCode()
is not unique !

For example:

OID oid1 = new OID("1.3.6.1.2.1.33.1.6.1.0");
System.out.println("OID1-" + oid1 + " Hash-" + oid1.hashCode()); 
OID oid2 = new OID("1.3.6.1.2.1.33.1.2.5.0");
System.out.println("OID2-" + oid2 + " Hash-" + oid2.hashCode());

OID1-1.3.6.1.2.1.33.1.6.1.0 Hash-1650
OID2-1.3.6.1.2.1.33.1.2.5.0 Hash-1650

This could cause problems if somebody want to store OID objects in a
Hashtable using the hash code as key.

I would suggest to improve the method OID::hashCode

See for example:

http://www.javapractices.com/Topic28.cjp


Best regards