The phrase is a hybrid ghost from two different Java eras. To resolve it:
As of my latest knowledge, there is no publicly released version called “Java Runtime 18 u241.” The standard version numbering scheme for Oracle Java SE does not match this pattern. The likely intended references are: java runtime 18 u241 work
=== Java 18 Runtime Utilities Demo ===
: Primarily focused on security vulnerability fixes, performance improvements, and certificate updates. The phrase is a hybrid ghost from two different Java eras
For (the final update):