Unable to Open OneClick (Java Error)

Document ID : KB000124376
Last Modified Date : 10/01/2019
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Issue:
When attempting to start OneClick console, we get the following error:

JAVA Error 
java.lang.SecurityException: com.sun.deploy.net.JARSigningException: Found unsigned entry in resource: http://hostname/spectrum/lib/clientconsole.jar;no_javaws_cheat 
at com.sun.deploy.cache.CacheEntry.checkAllJarEntriesSigned(Unknown Source) 
at com.sun.deploy.cache.CacheEntry.getJarFile(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) 
Caused by: com.sun.deploy.net.JARSigningException: Found unsigned entry in resource: http://hostname/spectrum/lib/clientconsole.jar;no_javaws_cheat
Resolution:
Clear the java cache.

Go into Java Control Panel.
Click settings under temporary internet files.
Delete everything (including applications and applets).

Restart console and it should work.