The full version string for this update release is 13.0.2+9. The version number is 13.0.2.

Liberica JDK 13.0.2 for Embedded

Liberica is a certified, Java SE 13.0.2-compliant distribution of OpenJDK 13.0.2 which works on embedded devices (Linux ARM64, Linux ARMv7, including Raspberry Pi 2 & 3 (ARMv6 hardfloat). It has the following notable additions:

  • Linux x86_64 version contains experimental support for ZGC.

  • Linux x86_64, ARMv8 and ARMv7 distributions include a choice of Client VM, Server VM and Minimal VM.

  • Alpine Linux x86_64 version is build with musl support.

  • Linux ARMv7 distribution contains Device IO API compiled for Raspberry Pi.

Please refer to the Oracle JDK 13.0.2 release notes for further information on JDK 13.0.2 features. This document further outlines the peculiarities of Liberica distribution as compared to Oracle JDK 11 distribution.

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) and Ubuntu (armhf).

Liberica JDK 13.0.2 distribution

Liberica JDK 13.0.2 for Embedded are distributed as .rpm, .deb and .tar.gz packages. Please select the one which is most appropriate for your purposes.

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.

LibericaFX for the Raspberry Pi

Liberica JDK 13.0.2 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 13.0.2 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

Issues fixed

IssueDescription

JDK-8167148

Add native rendering support by supporting WritableImages backed by NIO ByteBuffers

JDK-8209086

Some javafx.web files are missing GPLv2+Classpath copyright header

JDK-8209178

Proxied HttpsURLConnection doesn’t send BODY when retrying POST request

JDK-8209938

Default and Cancel button cause memory leak

JDK-8213119

[macos] java/awt/GraphicsDevice/CheckDisplayModes.java fails

JDK-8221377

Fix mistakes in FX API docs

JDK-8222912

Websocket client doesn’t work in WebView

JDK-8223760

support static builds

JDK-8224636

CSS “pointer-events” property “stroke” is not respected for SVG renderings

JDK-8224909

Unlink Set of LinkedHashSets

JDK-8225261

Better method resolutions

JDK-8225279

Better XRender interpolation

JDK-8226352

Improve Kerberos interop capabilities

JDK-8226782

Update copyright header for files modified in 2019

JDK-8226789

Path rendered incorrectly when it goes outside the clipping region

JDK-8227431

[Windows] Fix assertion failure on X86 32-bit when enabling CLOOP based JavaScript interpreter

JDK-8227473

Improve gstreamer media support

JDK-8227757

re-create ‘ga’ mercurial tags for CPU19_10 respin

JDK-8227758

More valid PKIX processing

JDK-8227816

More Colorful ICC profiles

JDK-8228548

Normalize normalization for all

JDK-8229328

[windows] PlatformFileHandle type should be JGObject rather than void *

JDK-8229728

Implement negotiation parameters

JDK-8229890

WritableImage update fails for empty region

JDK-8229951

Better Ticket Granting Services

JDK-8230279

Improve Pack200 file reading

JDK-8230318

Better trust store usage

JDK-8230361

[web] Cookies are not enabled in WebKit v608.1

JDK-8230869

[macos 10.15] The String “X Y Z” was not set to application’s icon in the taskbar

JDK-8230967

Improve Registry support of clients

JDK-8231129

More glyph images

JDK-8231134

Improved credential support

JDK-8231139

Improved keystore support

JDK-8231403

[ppc]: Align ReservedCodeCacheSize default value with other platforms

JDK-8231422

Better serial filter handling

JDK-8231780

Better TLS messaging support

JDK-8231790

Provide better FileSystemProviders

JDK-8231991

Mouse wheel change focus on awt/swing windows

JDK-8232005

[s390, PPC64] More exception checks missing in interpreter

JDK-8232019

Add LuxTrust certificate updates to the existing root program

JDK-8232051

Epsilon should warn about Xms/Xmx/AlwaysPreTouch configuration

JDK-8232106

[x86] C2: SIGILL due to usage of SSSE3 instructions on processors which don’t support it

JDK-8232121

Better numbering system

JDK-8232128

Better formatting for numbers

JDK-8232214

Improved internal validations

JDK-8232419

Improve Registry registration

JDK-8232984

Upgrading Joni License version to 2.1.16

JDK-8233202

exclude javax/swing/plaf/basic/BasicGraphicsUtils/8132119/bug8132119.java

JDK-8233219

NMT output on AIX misses some categories

JDK-8233223

Add Amazon Root CA certificates

JDK-8233886

TEST_BUG jdk/java/net/CookieHandler/B6791927.java hit hardcoded expiration date

JDK-8234037

Improve Object Identifier Processing

JDK-8234107

Several AWT modal dialog tests failing on Linux after JDK-8231991

JDK-8234245

sun/security/lib/cacerts/VerifyCACerts.java fails due to wrong checksum

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