Comment by rda...@google.com: @jdpatterson: In GPE release 1.1.1, the plugin was fixed so that in the case of using OOPHM on the Mac, -XstartOnFirstThread is not automatically added to the launch arguments (which is the correct behavior).
Regarding the Memacache issue, you should be able to run your GWT + App Engine project in OOPHM mode without having to do any -noserver tricks. Does your project have both GWT and App Engine enabled? For more information: http://code.google.com/p/google-web-toolkit/wiki/OophmForMacBasedGwtContributors --~--~---------~--~----~------------~-------~--~----~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~----------~----~----~----~------~----~------~--~---