As of Java 7 update 45, one can no longer lookup manifest information without triggering a warning?
问题 Unfortunately, the workaround given by Oracle and others here (Java applet manifest - Allow all Caller-Allowable-Codebase) for getting around the 7 update 45 problem does NOT work if your app needs to access its loaded signed jar manifests. In my case, our app does this so as to log the relevant manifest info. With my web start app, everything worked fine and dandy with the "Trusted-Library" attribute that needed to be added for 7u21. With 7u45, removing the "Trusted-Library" attribute and