LifeKeeper GUI won’t start with OpenJDK

When running OpenJDK version “18.0.1.1” on LifeKeeper, the following error is received:

Error/Message

ABOUT TO EXEC C:/LK/bin/sh.exe “C:/LK/bin/lkGUIapp.sh”
Successfully created process with PID=19572.
openjdk version “18.0.1.1” 2022-04-22
OpenJDK Runtime Environment (build 18.0.1.1+2-6)
OpenJDK 64-Bit Server VM (build 18.0.1.1+2-6, mixed mode, sharing)
Exception in thread “main” java.lang.UnsupportedOperationException: The Security Manager is deprecated and will be removed in a future release
at java.base/java.lang.System.setSecurityManager(System.java:416)
at com.steeleye.LifeKeeper.client.C_MainFrame.main(C_MainFrame.java:985)
Process exited.

Workaround

Upgrade LifeKeeper to its latest version. Please see our Release Notes to stay up-to-date on the versions of OpenJDK that are supported.