我们正在开发一个使用 PlayFramework 构建的 Java 应用程序并将其部署到 Heroku。我们通过 Play Authenticate 将我们的登录机制与 Facebook 集成，但是从今天早上开始，我们无法登录。我们得到了一些看起来像附件的安全证书异常。
我们想知道这是否可能是由于环境发生了一些变化，因为我们不记得更改任何相关的应用程序代码。有什么我们可以检查的吗？
提前致谢，
2013-02-20T17:33:32+00:00 app[web.1]: play.api.Application$$anon$1: Execution exception[[RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty]]
2013-02-20T17:33:32+00:00 app[web.1]:
2013-02-20T17:33:32+00:00 app[web.1]: at play.api.DefaultApplication.handleError(Application.scala:383) [play_2.10-2.1.0.jar:2.1.0]
2013-02-20T17:33:32+00:00 app[web.1]: at play.api.libs.concurrent.PlayPromise$$anonfun$extend1$1.apply(Promise.scala:113) [play_2.10-2.1.0.jar:2.1.0]
2013-02-20T17:33:32+00:00 app[web.1]: at sun.security.ssl.SSLEngineImpl.checkTaskThrown(SSLEngineImpl.java:508) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: at sun.security.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:759) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: at sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:727) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: at org.jboss.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1118) ~[netty-3.5.9.Final.jar:na]
2013-02-20T17:33:32+00:00 app[web.1]: at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:624) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
2013-02-20T17:33:32+00:00 app[web.1]: at play.core.server.netty.PlayDefaultUpstreamHandler$$anon$2$$anonfun$handle$1.apply(PlayDefaultUpstreamHandler.scala:132) [play_2.10-2.1.0.jar:2.1.0]
2013-02-20T17:33:32+00:00 app[web.1]: at play.api.libs.concurrent.PlayPromise$$anonfun$extend1$1.apply(Promise.scala:113) [play_2.10-2.1.0.jar:2.1.0]
2013-02-20T17:33:32+00:00 app[web.1]: Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
2013-02-20T17:33:32+00:00 app[web.1]: at sun.security.validator.PKIXValidator.(PKIXValidator.java:75) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: at sun.security.validator.Validator.getInstance(Validator.java:178) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:270) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:225) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: Caused by: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
2013-02-20T17:33:32+00:00 app[web.1]: at java.security.cert.PKIXParameters.setTrustAnchors(PKIXParameters.java:200) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: at java.security.cert.PKIXBuilderParameters.(PKIXBuilderParameters.java:104) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: at java.security.cert.PKIXParameters.(PKIXParameters.java:120) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: at sun.security.validator.PKIXValidator.(PKIXValidator.java:73) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1147) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: at sun.security.validator.Validator.getInstance(Validator.java:178) ~[na:1.6.0_27]
2013-02-20T17:33:32+00:00 app[web.1]: at sun.security.ssl.X509TrustManagerImpl.getValidator(X509TrustManagerImpl.java:129) ~[na:1.6.0_27]