What is Liberica JDK and can we use it with B4X?

[YogiYang]

Hello,

I was suggested by a fellow core JAVA developer to use Liberica JDK instead of standard JAVA JDK from Oracle.

Has anyone tried this with B4X. Can we use it instead of the standard JAVA JDK?

Here is the link.

Java Download | Java 8, Java 11, Java 17, Java 21, Java 22 - OpenJDK Builds for Linux, Windows & macOS

Download Liberica JDK, supported OpenJDK builds. Open source Java 8, 11 and more for Linux, Windows, macOS.

bell-sw.com

TIA

 

[alwaysbusy]

The simplest is to just use the OpenJDK packages that Erel has prepared and that can be found on the products page with the installation instructions. e.g. for B4A this is the page: https://www.b4x.com/b4a.html

 

[EnriqueGonzalez]

AlwaysBusy is right. but I want to add that Erel's JDK. Is mainly for development.

Liberica is good when you want to target raspberry pi with an UI.

There are some other JDKs. For example. Graalvm that is focused on microservices and the cloud.

Now days eclipse and Microsoft has their own JDKs. If you know how Erel's JDKs work. Then you could experiment.

 

[hatzisn]

Hello,

I was suggested by a fellow core JAVA developer to use Liberica JDK instead of standard JAVA JDK from Oracle.

Has anyone tried this with B4X. Can we use it instead of the standard JAVA JDK?

Here is the link.

Java Download | Java 8, Java 11, Java 17, Java 21, Java 22 - OpenJDK Builds for Linux, Windows & macOS

Download Liberica JDK, supported OpenJDK builds. Open source Java 8, 11 and more for Linux, Windows, macOS.

bell-sw.com

TIA

Liberica JDK is only a good choice if you have a Raspberry Pi.

 

[LWGShane]

@EnriqueGonzalez
@hatzisn

Liberica's "Full JDK" package contains JavaFX and is suitable for JavaFX development.

 

[aeric]

I think it would work for B4A and B4i but B4J requires javafx folder in a specific structure. Liberica JDK doesn't follow this structure so you still need to copy the javafx + jmods folders into it.

Note that you can use any version of OpenJDK you like. You just need to download the three pieces and put them in the right place:
- OpenJDK
- JavaFX SDK + jmods: https://gluonhq.com/products/javafx/

JavaFX SDK should be in javafx folder.
JavaFX jmods should be in javafx\javafx-jmods folder

I have tested and suggest to download the JDK from the following:

For JDK 17:

OpenJDK 17.0.2 (choose Windows / x64 zip and extracted as jdk-17.0.2 folder under C:\Java or your preferred directory)
Download: https://jdk.java.net/archive/

JavaFX 17.0.2 (extract the SDK to jdk-17.0.2 directory extracted above as javafx folder, jmods into this javafx directory as javafx-jmods)
Download: https://gluonhq.com/products/javafx/

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[EnriqueGonzalez]

Liberica JDK doesn't follow this structure so you still need to copy the javafx + jmods folders into it.

you are right but that is for develpment. when installed on client machine, that specific structure is not needed

 

[aeric]

you are right but that is for develpment. when installed on client machine, that specific structure is not needed

Correct. I use Liberica JDK for running B4J app in RaspberryPi OS as it is.

 

[xulihang]

I think it would work for B4A and B4i but B4J requires javafx folder in a specific structure. Liberica JDK doesn't follow this structure so you still need to copy the javafx + jmods folders into it.

I don't think so. I am using Liberica JDK for compiling B4J apps and it works.

 

[Gandalf]

I have used Liberica JRE to run B4J jar files (compiled with Oracle Java 8) on old 32 bit computers, on Linux. It displayed some warnings but worked.