Dx Spectrum - OneClick jnlp (client console) not launching
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Dx Spectrum - OneClick jnlp (client console) not launching


Article ID: 217548


Updated On:


CA Spectrum DX NetOps


The Spectrum OneClick.jnlp does not open, with errors such as:

java.lang.UnsupportedClassVersionError: com/aprisma/spectrum/app/console/client/ConsoleApp has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0


DX NetOps Spectrum Release : 22.2


Either the supported Java version is not installed or multiple java version installed.


Go to Control Panel -> Double click on Java 


> The Java version looks updated. However as we have 2 Java showing up in the Environment Settings, need to disable or remove the x86 and remove cache from browser then try loading OneClick.

> If it does not work then please remove both Java, download it from the OneClick Administrator Page & install.

> Validate in the Java Runtime Environment Settings.

> Try launching OC and see if it works.

Additional Information

TechDocs : DX NetOps Spectrum 22.2 : Troubleshooting OneClick Client Problems