NonPublicProxyClass.java 文件源码

private void newProxyInstance() {
    // expect newProxyInstance to succeed if it's in the same runtime package
    int i = proxyClass.getName().lastIndexOf('.');
    String pkg = (i != -1) ? proxyClass.getName().substring(0, i) : "";
    boolean hasAccess = pkg.isEmpty() || hasAccess();
    try {
        Proxy.newProxyInstance(loader, interfaces, handler);
        if (!hasAccess) {
            throw new RuntimeException("ERROR: Proxy.newProxyInstance should fail " + proxyClass);
        }
    } catch (AccessControlException e) {
        if (hasAccess) {
            throw e;
        }
        if (e.getPermission().getClass() != ReflectPermission.class ||
                !e.getPermission().getName().equals(NEW_PROXY_IN_PKG + pkg)) {
            throw e;
        }
    }
}