On 10/08/12 21:46, xxJohnnyxx wrote: > Hello, I want to connect to a mysql server from the server side of my GWT > code, like this: > > Caused by: java.security.AccessControlException: access denied > (java.lang.RuntimePermission modifyThreadGroup) > > at > java.security.AccessControlContext.checkPermission(AccessControlContext.java:374) > > at java.security.AccessController.checkPermission(AccessController.java:546) > > at java.lang.SecurityManager.checkPermission(SecurityManager.java:532) > > at > com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:283) > > at > com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkAccess(DevAppServerFactory.java:308) > > You appear to have app engine support enabled, but app engine doesn't support connecting to a mysql database.
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