无法让java web开始工作

Question

我正在直接从http://slick.ninjacave.com/slick.zip下载slick。 出于某种原因，在java webstart上，我遇到了这个问题：

com.sun.deploy.net.JARSigningException: Found unsigned entry in resource: http://www.pirategame.net/webstart/slick.jar
at com.sun.javaws.security.SigningInfo.getCommonCodeSignersForJar(Unknown Source)
at com.sun.javaws.security.SigningInfo.check(Unknown Source)
at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedResourcesHelper(Unknown Source)
at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedResources(Unknown Source)
at com.sun.javaws.Launcher.prepareResources(Unknown Source)
at com.sun.javaws.Launcher.prepareAllResources(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)

我相信jar正确签名，但我不确定。我对这个罐子签名垃圾一点都不了解。

那么，我该如何解决这个问题呢？如果我不能，那么我的游戏将无法运行。

谢谢！