java - Is there an easy way to investigate if AccessController.doPrivileged() is really needed? -


i have code attaches javaserver rmiregistry, done in privilegedaction 

        //start javaengineserver         accesscontroller.doprivileged(new privilegedaction()          {             public object run()              {                 try                 {                     startserver(port, getsession());                 } catch (rmiexception e)                  {                     e.printstacktrace();                     awtswingerrordialog.show(e, "error while attaching javaengineserver rmiregistry.exe");                 }                 return null;             }         });

i found other questions doprivileged method, , there comands need permissions getting environment variables.

so looked threw code behind startserver(port, session) method , haven't found looks needs permissions, there way confirm that, other test usages , functionality hand?

thank you.

i don't think there (reliable) easy way. there unreliable way though: temporarily replace code calls startserver, , try running in security sandbox.

i suspect doprivileged call needed though. method name , port parameter try create / bind / listen on serversocket. latter fail if securitymanager.checklisten method not allow operation ... won't in typical sandbox. (we don't want untrusted code able start stealth network services ...)


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