Java Applet - 版本7更新51 - "Trust for:<url> fpApplet/FDxSDKPro.jar已结束:Thu Jan 01 01:00:00 CET 1970"

更新到Java版本7更新51后,我购买了代码签名证书并签署了我的applet.我有主applet(AppletDemo.jar)和另外两个applet(commons-codec-1.7.jar和FDxSDKPro.jar),它们由主applet使用.我用DigiCert证书签了全部.

所有这些都签名,并用jarsigner工具验证,我得到这样的消息:

*s = signature was verified
m = entry is listed in manifest
k = at least one certificate was found in keystore
i = at least one certificate was found in identity scope
jar verified.*

当我尝试加载applet时,我在java调试控制台中收到以下消息(真正的url被替换为tag):

basic: Plugin2ClassLoader.addURL parent called for /fpApplet/AppletDemo.jar
basic: Plugin2ClassLoader.addURL parent called for /fpApplet/FDxSDKPro.jar
basic: Plugin2ClassLoader.addURL parent called for /fpApplet/commons-codec-1.7.jar
security: Certificate revocation enabled. Disable security validation optimizations.
security: Validate the certificate chain using CertPath API
security: Trust for: fpApplet/FDxSDKPro.jar has ended: Thu Jan 01 01:00:00 CET 1970
security: Validate the certificate chain using CertPath API
security: Trust for: /fpApplet/commons-codec-1.7.jar has ended: Thu Jan 01 01:00:00    CET 1970
security: Validate the certificate chain using CertPath API 
network: Cache entry not found [url: /fpApplet/, version: null]
security: Grant socket perm for /fpApplet/ : java.security.Permissions@199a51e (("java.net.SocketPermission" "" "connect,accept,resolve"))
basic: Your security settings have blocked an untrusted application from running
basic: exception: Your security settings have blocked an untrusted application from running.
com.sun.deploy.security.BlockedException: Your security settings have blocked an untrusted application from running

我假设,Applet因此而被阻止,以及以下两行(Trust for:fpApplet/FDxSDKPro.jar已结束:Thu Jan 01 01:00:00 CET 1970).

如果罐子签了,我不知道怎么会发生这种情况？有没有人有这样的问题？