问题
Did anybody run Apache Sling with an enabled Java SecurityManager? That'd need a special java.policy file to allow the actions done by all deployed bundles, and it'd be extremely helpful to have a basic version that already allows what's needed by the bundles provided with the basic Sling Starter, and to which one could add policies for additional deployed code.
I'd also be interested if someone can tell that employing the SecurityManager is infeasible in a Sling setting, perhaps due to its design properties (such as the ability to add JSPs to the JCR at runtime).
Background: If you run code of several mandants on one server, that might be neccessary to separate their code from each other. While OSGI does have some mechanisms to separate bundles from each other, it'd be trivial for malicious code to use e.g. Java reflection to grab internal stuff from services provided by other bundles. An enabled security manager might at least make that much more difficult.
(I do realize that even with a security manager it's probably quite possible for malicious code to use bugs and design flaws to get access to resources of other users on the system, and that probably the only way to seriously separate code from different mandants would be using different servers. But at least one can try to make it hard.)
来源：https://stackoverflow.com/questions/63601391/how-to-run-apache-sling-with-an-enabled-securitymanager