The SecurityClassLoader Class contains the following methods:
defineClass converts an array of bytes into an instance of Class and associates the new class with a set of permissions and a principal.
findPackageManagerClass finds a specified class from the package manager.
findPackageManagerResource retrieves an InputStream associated with a package manager resource with the specified name.
getSecurityContext retrieves the security context object associated with the class loader.
getThreadGroup retrieves the thread group associated with the loader.
setCodeBase sets the codebase URL associated with the class loader.
setPackageManagerNamespace sets the package manager namespace associated with the loader.
setThreadGroup sets the thread group associated with the class loader.