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Liberica JDK10.0.2Release Information
Release Notes
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The full version string for this binary release of OpenJDK is 10.0.2+0, and the version number is 10.0.2.

Liberica JDK 10.0.2

Liberica is a certified, Java SE 10-compliant distribution of OpenJDK 10 which works on server (x86_64, ARM64), desktop, and embedded devices, including Raspberry Pi 2 & 3 (ARMv6 hardfloat). It has the following notable additions:

  • JDK and JRE distributions which include Jigsaw feature and a choice of Client VM, Server VM and Minimal VM.

  • OpenJFX 10 and Device IO API compiled for Raspberry Pi.

Please refer to the Oracle JDK 10 release notes for further information on JDK 10 features. This document further outlines the peculiarities of Liberica distribution as compared to Oracle JDK 10 distribution.

Supported Server configurations

Liberica is tested and certified on x86_64 and ARM64 running the following OSes:

  • Ubuntu

  • Red Hat

It is also known to work with other Linux distributions

Supported Embedded configurations

Liberica is tested and certified on Raspberry Pi 2 & 3 running the following OSes:

  • Raspbian OS (armhf)

  • OpenSUSE (armv8)

It is also known to work with

  • Debian (armhf)

  • Ubuntu (armhf)

Liberica JDK 10.0.2 and JRE 10.0.2 distribution

Liberica JDK 10.0.2 and JRE 10.0.2 are distributed as .deb and .tar.gz packages. Please select the one which is most appropriate for your purposes.

  • Use Liberica JDK 10 if your application requires javac or other tools and services not present in a JRE, or you would like to use jlink to create a trimmed-down version of the Java Runtime for your particular needs.

  • Use Liberica JRE 10 for all other purposes.

Liberica 10 introduces all new features supported by OpenJDK 10 on Linux x64, except for Experimental Java-Based JIT Compiler.

With the introduction of the Jigsaw feature in JDK 9 and Minimal VM it is now possible to create a Runtime that is sufficient to run your application and trim down the size of the Runtime. To generate a Runtime with just the Minimal VM, add --vm=minimal to jlink options.

By default, the Liberica uses Server VM. Server VM and Client VM can be enabled with -server and -client command line options, respectively. In case the deployment requires to minimize the footprint, it may be beneficial to use Minimal VM, which emphasises on a minimal footprint. It has C1 JIT compiler only, Serial GC and no serviceability features. In a JRE it can be enabled in runtime with -minimal command line option.

LibericaFX for the Raspberry Pi

Liberica JDK 10 and JRE 10 come with a bundled LibericaFX implementation, which is based on OpenJFX. The following tables lists Java FX modules status of Liberica distribution

  • Java FX Graphics - works.

  • Java FX Controls - works.

  • Java FX Media - does not work.

  • Java FX Webkit - does not work.

The following pipelines are known to work: EGL, SW (direct framebuffer) and GTK. By default, Liberica tries to use the accelerated EGL pipeline, which requires the presence of EGL libraries. If they are not found, the implementation falls back to software rendering.

Use the following command line options to specify the rendering pipeline:

  • -Dprism.order=sw forces the use of software rendering pipeline.

  • -Dprism.order=es2 forces the use of EGL pipeline and hardware acceleration.

  • -Djavafx.platform=gtk if you would like to launch a LibericaFX application using Liberica from X11.

Please refer to the following wiki for more information.

Device IO API for the Raspberry Pi

Liberica JDK 10 (and JRE 10) comes with a bundled OpenJDK Device I/O (DIO) API implementation module. DIO provides a Java API for accessing Raspberry PI GPIO pins and for communicating with peripheral devices:

  • General Purpose Input/Output (GPIO).

  • Inter-Integrated Circuit Bus (I2C), Serial Peripheral Interface (SPI).

  • Universal Asynchronous Receiver/Transmitter (UART).

Please refer to the following wiki for more information.

Security Baselines

BellSoft Liberica follows the security baselines for Oracle Java SE. Please refer to the Oracle documentation for a list of issues fixed in a given release.

Known Issues

LibericaFX and EGL on Raspbian

As of 2017, the default location of Broadcom libEGL.so and libGLESv2.so has changed in Raspbian OS. If you’d like to leverage hardware EGL acceleration available from Broadcom video drivers in LibericaFX while running a recent Raspbian OS, run the following command:

cd /opt/vc/lib
sudo ln -s libbrcmEGL.so libEGL.so
sudo ln -s libbrcmGLESv2.so libGLESv2.so
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