java - java 7 jnlpが実行されていませんリソースをロードできません

Question

jnlpファイルが正常に動作するJava 6を搭載したWindowsコンピューターがありますが、Java 7では次のメッセージが表示されます。

com.sun.deploy.net.FailedDownloadException: Unable to load resource: http://www.pscode.org/jws/persistserv.jnlp
    at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
    at com.sun.deploy.net.DownloadEngine._downloadCacheEntry(Unknown Source)
    at com.sun.deploy.cache.ResourceProviderImpl.getResourceCacheEntry(Unknown Source)
    at com.sun.deploy.cache.ResourceProviderImpl.getResourceCacheEntry(Unknown Source)
    at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)
    at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)
    at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
    at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
    at com.sun.javaws.Launcher.launch(Unknown Source)
    at com.sun.javaws.Main.launchApp(Unknown Source)
    at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
    at com.sun.javaws.Main.access$000(Unknown Source)
    at com.sun.javaws.Main$1.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)