PolicyFile.java 文件源码

/**
 * Creates one of the well-known permissions directly instead of
 * via reflection. Keep list short to not penalize non-JDK-defined
 * permissions.
 */
private static final Permission getKnownInstance(Class<?> claz,
    String name, String actions) {
    if (claz.equals(FilePermission.class)) {
        return new FilePermission(name, actions);
    } else if (claz.equals(SocketPermission.class)) {
        return new SocketPermission(name, actions);
    } else if (claz.equals(RuntimePermission.class)) {
        return new RuntimePermission(name, actions);
    } else if (claz.equals(PropertyPermission.class)) {
        return new PropertyPermission(name, actions);
    } else if (claz.equals(NetPermission.class)) {
        return new NetPermission(name, actions);
    } else if (claz.equals(AllPermission.class)) {
        return SecurityConstants.ALL_PERMISSION;
    } else {
        return null;
    }
}