RMI Permission Problem

I am struggling with a RMI permission problem. I have a server and a client program that both depend on a common project, which provides the package common.rmi with the interfaces. In my server policy file I write

grant codeBase "file:path/to/bin/webui/common/rmi" { permission java.security.AllPermission; };

When I start the cli开发者_如何转开发ent application I get an AccessControlException for a log file in the .metadata/.plugins eclipse file and one from (java.lang.RuntimePermission getClassLoader). Does somebody know why? I thought it is sufficient to grant a permission on the package with the interfaces?

The codebase should point to a JAR file or to the head of a package-structured directory hierarchy of .class files. It looks like yours is pointing into the package structure.