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我尝试将我的 java web start 应用程序部署为deploy java web start

但是当我启动我的应用程序时，我遇到了异常：

java.io.IOException: Cannot find cached resource for URL: http://nguyennguyen1647:8080/myweb/byte-viewer-1.0.0.jar
    at com.sun.deploy.cache.Cache.getCachedResourceFilePath(Unknown Source)
    at com.sun.deploy.cache.ResourceProviderImpl.getCachedResourceFilePath(Unknown Source)
    at com.sun.javaws.security.JNLPSignedResourcesHelper.getSignedJNLPBits(Unknown Source)
    at com.sun.javaws.security.JNLPSignedResourcesHelper.getSignedJNLPFile(Unknown Source)
    at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedLaunchDescHelper(Unknown Source)
    at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedLaunchDesc(Unknown Source)
    at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedLaunchDesc(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(Thread.java:724)

我认为我的问题是我的 jar 文件是自签名的。请告诉我如何用证书签署 jar 文件？

提前致谢！

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