The latest Oracle Java RE 7u51 at its normal level of “High” security causes the Dell iDRAC6 virtual console (version 1.95 (Build 05)) to die with this Java trace:

java.lang.SecurityException: Missing required Permissions manifest attribute in main jar: https://hostname.some.domain:443/software/avctKVM.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)

Simply set the security level to “Medium” in the Java Control Panel found in Windows’ Control Panel until Dell releases a new firmware.