Summary
If you upgrade to Java 8, you may get a certificate error when trying to launch the DPX interface from a workstation.
Symptoms
If you use a remote workstation to access the DPX interface, after upgrading to Java 8 you may see the following error when trying to launch DPX: "Your security settings have blocked an application signed with an expired or not-yet-valid certificate from running."
To resolve this issue, open the Java Control Panel, then click the Security tab:
Set the security level to 'High' and edit the Exception Site List. Click 'Edit Site List' and 'Add':
Resolution
Enter the URL that you normally use to launch DPX, eg http://myserver.com:6122/dpx.jnlp, then click OK. The interface launches.