A: Edit the build configuration’s JDK definition. Change the version label from 18_u241 to 1.8.0_241 or 18.0.1 , depending on your bytecode target.
For any new project or maintenance task, forget the “u” entirely. Move to Java 17 LTS or 21 LTS. And always verify your runtime with: java runtime 18 u241 work
Error: Java runtime 18 u241 not found. Unsupported major.minor version 62.0 (Note: Java 18 class file version is 62.0 ; Java 8 is 52.0 .) Check the application’s manifest or start script: A: Edit the build configuration’s JDK definition
JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.241-1.b01.x86_64 If your system is misconfigured and throws an error like “Requires Java 18 u241,” translate it to “Requires Java 8 Update 241.” Java 18 was released in March 2022, followed by Java 18.0.1 in April 2022 (a patch release containing security fixes). It never had “u241.” The highest patch number for Java 18 is 18.0.2 . Move to Java 17 LTS or 21 LTS
If your application strictly requires “18 u241,” it is in the documentation or error handling code. Replace it with 18.0.1 or, better, upgrade to Java 17 LTS. Part 3: How to Make “Java Runtime 18 U241 Work” – Practical Fixes If you see an error like: