[Q]What are the problems withcontainer default session management > what are the alternativeto solve the problem?By default container is using the cookies as a transport to carry the SessionId from server to client and fromclient to server.If your browser is not supporting cookies, then the cookies which contain the SessionId will not be stored inthe client machine. Next when user is sending the request, this cookie will not go to server then containerassumes this request as new request and creates the session obect and generate SessionId again., Because ofthis clients old conversation will be lost. Solution: ----to solve this problem, you have to use another transport as an alternative for cookies to carry theSessionId from server to client and from client to server.!ou have two alternatives" ######$%& rewriting'idden fieldsU! ewriting(ut.println)*+a href,-hello.sp-.hello+/a.012(ut.println)*+a href,03res.encode$rl)*hello.sp0130.'ello+/a.012It is the lowest common denominator of session tracking . in case where a client will not accept a cookie ,$%&rewriting may be used by the server to establish session tracking . $%& rewriting involve adding data to the$%& path that can be interpreted by container on the next request to associates the request with a session theSessionId)must be 4sessionId1must be encoded as a path parameter in the resulting $%& string.5xample "#####http"//xy6.com/hello.sp24SessionId,77"idden fields +form action,0x.sd0+br.Name+input type,0text name,0name0.+br.+input type,0'idden0 name,04SessionId0value,0+8,session.getId)18.0/.Inthisapproach,theuniquetokenisembeddedwithineach'9:& form. whenrequestissubmitted,theserver receive the token as a part of request. note similar to $%& rewriting the hidden parameter . since eachrequest should include a form submission .so ,it may not be applicable to all type of pages.9he server specification doesn-t use this approach.#ifference version of getsession$% "######## getsession)1 getsession)Boolean1getsession$%$se this versionin any case. if you want session.i.e.whether session is already present or not getSession)1getSession)true1;if)session obect is available1;return it2