Issue Summary
Getting java error when launching the console to view VM from Oracle VM Manager. Unable to view the VM Console.
Error Description
java.lang.SecurityException: Missing required Permissions manifest attribute in main jar: https://vmmgr327.aclnz.com:7002/ovm/rasproxy/ovm_rasproxy-signed.jar
at com.sun.deploy.security.DeployManifestChecker.verifyMainJar(Unknown Source)
at com.sun.deploy.security.DeployManifestChecker.verifyMainJar(Unknown Source)
at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
at com.sun.javaws.Launcher.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Reason for Error
From Java 7 Update 51 onwards it automatically blocks the Java Applet from VM Manager probably due to its lower security
Resolution
1. Simply go to Control Panel > Programs > Java
2. Security tab > lower the security to 'Medium'
3. The hit the button on the bottom right hand corder named 'Edit Site List' > add your VM Manager host site address. For example https://vmmgr.aclnz.com.
4. Hit the ok button.
5. Now go back to Oracle VM Manager and relaunch the VM's console. It should now open and ask you to accept a warning. Accept the warning and you will be able to view the VM Console then.
Environment
- Oracle VM Manager 3.2.x
- Oracle Linux 5.7