Yes - that was the class that I was asking ( https://www.snmp4j.org/doc/org/snmp4j/security/UsmUserTable.html)
I was under the (mistaken) impression that the synchronized keyword prevents two threads from executing the same function simultaneously (at an object granularity). After reading your response, I checked and understood that event two different synchronized functions of an instance cannot be executed simultaneously by two different threads. So, to sum up, there is no issue. Its just my not understanding the synchronized keyword properly. Apologies and thanks, as always, for the clarifications. Thanks Girish On Mon, Mar 11, 2019 at 5:19 PM Frank Fock <f...@agentpp.com> wrote: > > Hi Girish, > > The UsmUserTable (USMUserTable does not exists either) addUser and > removeAllUsers methods are both synchronised. > Thus, where exactly do you see a concurrency issue? > > Best regards, > Frank > > > On 11. Mar 2019, at 14:32, Girish Venkatasubramanian <giris...@gmail.com> > wrote: > > Hi Frank. > Yes, I had the incorrect class name. Thanks for pointing that out. > > The class I was asking about was USMUserTable. Same questions however. > > Thanks > Girish > > > On Sun, Mar 10, 2019, 8:59 AM Frank Fock <f...@agentpp.com> wrote: > >> Hello Girish, >> >> A class USMTable does not exists in SNMP4J. Do you meant another class or >> is this class from a third party? >> >> Best regards, >> Frank >> >> > On 8. Mar 2019, at 16:57, Girish Venkatasubramanian <giris...@gmail.com> >> wrote: >> > >> > Hello >> > I was wondering if the USMTable is thread safe. >> > >> > I see that the USMTable uses a TreeMap which itself is not synchronized >> > (say, unlike a concurrent hash map). >> > >> > Even though the functions that access it are synchronized it would not >> > prevent a scenario where one thread is calling removeAllUsers() and >> another >> > thread is invoking addUser() - yes ? Is there some synchronization >> > mechanism that I am missing ? >> > >> > Would appreciate your response. >> > Thanks >> > Girish >> > _______________________________________________ >> > SNMP4J mailing list >> > SNMP4J@agentpp.org >> > https://oosnmp.net/mailman/listinfo/snmp4j >> >> > _______________________________________________ SNMP4J mailing list SNMP4J@agentpp.org https://oosnmp.net/mailman/listinfo/snmp4j