Unable to launch application : JNLP error

Question

I found answer to this question here!

However, I tried enabling java caching by checking “Keep temporary files on my computer.” But I still get the exception:

com.sun.deploy.net.JARSigningException: Found unsigned entry in resource: http://localhost:8080/<context-root>/client/servlet-api.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(Thread.java:745)

Is there any other possible solution?

Why doies the client side code need `servlet-api.jar`? Is that Jar digitally signed? — Andrew Thompson, May 18 '15 at 06:52
Actually, client is my folder name. Sorry about that. No it is not signed but neither of the other jars are signed. — Samyukta, May 19 '15 at 14:32
*"No it is not signed.."* All code for any JWS launched app. needs to be digitally signed! — Andrew Thompson, May 19 '15 at 14:39
*"How do I sign a jnlp jar?"* Exactly the same way that you would [sign a Jar file](https://www.google.com/search?q=How+do+I+sign+a+jar%3F). Oh, and please don't mistake SO for a help desk. Do some research before asking questions. — Andrew Thompson, May 20 '15 at 12:37

Unable to launch application : JNLP error

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