B4J Question Different runtime requirements for Java 8 and OpenJDK 11?

[MegatenFreak]

Hi.
The app I'm developing will be running on a variety of different systems, some of them old 32-bit Windows 7 systems.
I've used Java 8 and tested the app and it runs fine on all systems. My questions is: If another developer (who works on my code on his own system with B4J) uses OpenJDK 11, will the final compiled Java app be different? Is it possible it wouldn't run on the same systems that ran my own version?
Thanks a lot.

 

[KMatle]

If you compile it to a standalone package (UI) it comes with all ressources. No other install is needed then.

 

[Erel]

Java 11 is supported by 64 bit computers. This means that the package created will not run on 32 bit computers.

 

[MegatenFreak]

Thanks. It's really annoying that certain companies still use 32-bit systems...

 

[Erel]

I recommend using Java 11+ and distribute the standalone packages. If you need to support some old 32 bit computers then send them the java 8 compiled jar and assume that Java 8 is installed.

You can use this tool to help you compile with correct Java: https://www.b4x.com/android/forum/t...ith-different-version-of-java.120584/#content

 

[MegatenFreak]

Thanks. It's good to know I can use Java 11 but still compile to Java 8.
Just one question: I searched around the forum for differences between Java 8 and Java 11 and found nothing discussing performance.
Is there any performance boost in 11 over 8? (Sorry if it's the wrong place to ask)

 

[Erel]

Both are very fast. If you encounter a performance issue then you are doing something wrong.