The full version string for this update release is 21.0.1+12. The version number is 21.
Liberica is a certified, Java SE 21-compliant distribution of OpenJDK 21 which works on server (Linux x86_64, Linux ARM64, Windows 64), desktop (Windows 64, Windows 32, Mac, Linux x86_64), and 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.
- Windows x86_64, Windows x86, Windows ARMv8, Mac, Linux x86_64, Linux x86 and Linux ARMv7 distributions contain OpenJFX 21.
- Linux ARMv7 distribution contains Device IO API compiled for Raspberry Pi.
Please refer to the Oracle JDK 21.0.1 release notes for further information on JDK 21 features. This document further outlines the peculiarities of Liberica distribution as compared to Oracle JDK 21 distribution.
Liberica is supported on the following OSes:
- Ubuntu Linux 16.04, 18.04, 20.04 (x86, x86_64, ARMv7, ARMv8)
- Debian Linux 8, 9, 10 (x86, x86_64, ARMv7, ARMv8)
- Red Hat, Oracle Linux and CentOS 8x, 6.x, 7.x (x86, x86_64, ARMv7, ARMv8)
- Alpine Linux 3.7+ (x86_64, ARMv8)
- SUSE Linux Enterprise 12, 15 and tumbleweed (x86_64, ARMv8)
- Apple macOS 10.11+ (x86_64, ARMv8)
- Microsoft Windows 2019, Windows 2016, Windows 2012 R2, Windows 10, Windows 8, Windows 7 (x86, x86_64, ARMv8)
It is also known to work on other Linux distributions and Windows versions.
Note: The minimum supported Linux kernel version is 2.6.18 and GLIBC version 2.6. LibericaFX works on all supported Ubuntu versions, Red Hat Linux family starting from 7.x and SUSE versions with GTK3 backend.
Liberica is tested and certified on Raspberry Pi 2, 3 and 4 running the following OSes:
- Raspbian OS (armhf)
- OpenSUSE (armv8)
It is also known to work with Debian (armhf) and Ubuntu (armhf).
Liberica JDK 21 are distributed as .rpm, .zip, .deb and .tar.gz packages. Please select the one which is most appropriate for your purposes.
Liberica JDK 21 introduced all new features supported by OpenJDK 21.
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.
Liberica JDK continues to provide support for AOT and Graal JIT. Since in OpenJDK 21 builds these features are deemed experimental and deprecated, it is recommended to compile native executables with Liberica Native Image Kit to avoid errors.
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.
Liberica JDK 21 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.
* Not supported on Raspberry Pi 4.
Please refer to the following wiki for more information.
Liberica JDK 21 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.
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.
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
This is the list of the security issues fixed in this release. CVSS scores are provided using the CVSS version 3.1 scoring system.
|CVE ID||CVSS base score||Component/Module||Attack vector||Complexity||User interaction||Scope||Confidentiality||Integrity||Availability|
|JDK-8240567||MethodTooLargeException thrown while creating a jlink image|
|JDK-8284772||GHA: Use GCC Major Version Dependencies Only|
|JDK-8286503||Enhance security classes|
|JDK-8293114||JVM should trim the native heap|
|JDK-8296581||Better system proxy support|
|JDK-8297856||Improve handling of Bidi characters|
|JDK-8299658||C1 compilation crashes in LinearScan::resolve_exception_edge|
|JDK-8302017||Allocate BadPaddingException only if it will be thrown|
|JDK-8303815||Improve Metaspace test speed|
|JDK-8304008||Update README.md and CONTRIBUTING.md for jfx update repos|
|JDK-8304954||SegmentedCodeCache fails when using large pages|
|JDK-8307766||Linux: Provide the option to override the timer slack|
|JDK-8308042||[macos] Developer ID Application Certificate not picked up by jpackage if it contains UNICODE characters|
|JDK-8308047||java/util/concurrent/ScheduledThreadPoolExecutor/BasicCancelTest.java timed out and also had jcmd pipe errors|
|JDK-8308184||Launching java with large number of jars in classpath with java.protocol.handler.pkgs system property set can lead to StackOverflowError|
|JDK-8308474||DSA does not reset SecureRandom when initSign is called again|
|JDK-8308609||java/lang/ScopedValue/StressStackOverflow.java fails with "-XX:-VMContinuations"|
|JDK-8309032||jpackage does not work for module projects unless --module-path is specified|
|JDK-8309214||sun/security/pkcs11/KeyStore/CertChainRemoval.java fails after 8301154|
|JDK-8309475||Test java/foreign/TestByteBuffer.java fails: a problem with msync (aix)|
|JDK-8309502||RISC-V: String.indexOf intrinsic may produce misaligned memory loads|
|JDK-8309591||Socket.setOption(TCP_QUICKACK) uses wrong level|
|JDK-8309746||Reconfigure check should include make/conf/version-numbers.conf|
|JDK-8309889||[s390] Missing return statement after calling jump_to_native_invoker method in generate_method_handle_dispatch.|
|JDK-8309966||Enhanced TLS connections|
|JDK-8310106||sun.security.ssl.SSLHandshake.getHandshakeProducer() incorrectly checks handshakeConsumers|
|JDK-8310171||Bump version numbers for 21.0.1|
|JDK-8310233||Fix THP detection on Linux|
|JDK-8310268||RISC-V: misaligned memory access in String.Compare intrinsic|
|JDK-8310321||make JDKOPT_CHECK_CODESIGN_PARAMS more verbose|
|JDK-8310586||ProblemList java/lang/ScopedValue/StressStackOverflow.java#default with virtual threads on linux-all|
|JDK-8310681||Update WebKit to 616.1|
|JDK-8310687||JDK-8303215 is incomplete|
|JDK-8310873||Re-enable locked_create_entry symbol check in runtime/NMT/CheckForProperDetailStackTrace.java for RISC-V|
|JDK-8311026||Some G1 specific tests do not set -XX:+UseG1GC|
|JDK-8311033||[macos] PrinterJob does not take into account Sides attribute|
|JDK-8311097||Synchron XMLHttpRequest not receiving data|
|JDK-8311160||[macOS, Accessibility] VoiceOver: No announcements on JRadioButtonMenuItem and JCheckBoxMenuItem|
|JDK-8311249||Remove unused MemAllocator::obj_memory_range|
|JDK-8311285||report some fontconfig related environment variables in hs_err file|
|JDK-8311511||Improve description of NativeLibrary JFR event|
|JDK-8311592||ECKeySizeParameterSpec causes too many exceptions on third party providers|
|JDK-8311682||Change milestone to fcs for all releases|
|JDK-8311862||RISC-V: small improvements to shift immediate instructions|
|JDK-8311917||MAP_FAILED definition seems to be obsolete in src/java.desktop/unix/native/common/awt/fontpath.c|
|JDK-8311921||Inform about MaxExpectedDataSegmentSize in case of pthread_create failures on AIX|
|JDK-8311923||TestIRMatching.java fails on RISC-V|
|JDK-8311926||java/lang/ScopedValue/StressStackOverflow.java takes 9mins in tier1|
|JDK-8311955||c++filt is now ibm-llvm-cxxfilt when using xlc17 / clang on AIX|
|JDK-8311981||Test gc/stringdedup/TestStringDeduplicationAgeThreshold.java#ZGenerational timed out|
|JDK-8312127||FileDescriptor.sync should temporarily increase parallelism|
|JDK-8312128||Change JavaFX release version to 21.0.1 in jfx21u|
|JDK-8312180||(bf) MappedMemoryUtils passes incorrect arguments to msync (aix)|
|JDK-8312182||THPs cause huge RSS due to thread start timing issue|
|JDK-8312248||Enhanced archival support redux|
|JDK-8312394||[linux] SIGSEGV if kernel was built without hugepage support|
|JDK-8312395||Improve assertions in growableArray|
|JDK-8312401||SymbolTable::do_add_if_needed hangs when called in InstanceKlass::add_initialization_error path with requesting length exceeds max_symbol_length|
|JDK-8312489||Increase jdk.jar.maxSignatureFileSize default which is too low for JARs such as WhiteSource/Mend unified agent jar|
|JDK-8312525||New test runtime/os/TestTrimNative.java#trimNative is failing: did not see the expected RSS reduction|
|JDK-8312535||MidiSystem.getSoundbank() throws unexpected SecurityException|
|JDK-8312555||Ideographic characters aren't stretched by AffineTransform.scale(2, 1)|
|JDK-8312573||Failure during CompileOnly parsing leads to ShouldNotReachHere|
|JDK-8312585||Rename DisableTHPStackMitigation flag to THPStackMitigation|
|JDK-8312591||GCC 6 build failure after JDK-8280982|
|JDK-8312619||Strange error message when switching over long|
|JDK-8312620||WSL Linux build crashes after JDK-8310233|
|JDK-8312625||Test serviceability/dcmd/vm/TrimLibcHeapTest.java failed: RSS use increased|
|JDK-8312909||C1 should not inline through interface calls with non-subtype receiver|
|JDK-8312976||MatchResult produces StringIndexOutOfBoundsException for groups outside match|
|JDK-8312984||javac may crash on a record pattern with too few components|
|JDK-8313081||MonitoringSupport_lock should be unconditionally initialized after 8304074|
|JDK-8313177||Web Workers timeout with Webkit 616.1|
|JDK-8313181||Enabling modern media controls on webkit 616.1 does not load button images on HTML5 video Element|
|JDK-8313248||C2: setScopedValueCache intrinsic exposes nullptr pre-values to store barriers|
|JDK-8313262||C2: Sinking node may cause required cast to be dropped|
|JDK-8313307||java/util/Formatter/Padding.java fails on some Locales|
|JDK-8313312||Add missing classpath exception copyright header|
|JDK-8313323||javac -g on a java file which uses unnamed variable leads to ClassFormatError when launching that class|
|JDK-8313402||C1: Incorrect LoadIndexed value numbering|
|JDK-8313428||GHA: Bump GCC versions for July 2023 updates|
|JDK-8313576||GCC 7 reports compiler warning in bundled freetype 2.13.0|
|JDK-8313602||increase timeout for jdk/classfile/CorpusTest.java|
|JDK-8313626||C2 crash due to unexpected exception control flow|
|JDK-8313657||com.sun.jndi.ldap.Connection.cleanup does not close connections on SocketTimeoutErrors|
|JDK-8313676||Amend TestLoadIndexedMismatch test to target intrinsic directly|
|JDK-8313678||SymbolTable can leak Symbols during cleanup|
|JDK-8313691||use close after failing os::fdopen in vmError and ciEnv|
|JDK-8313701||GHA: RISC-V should use the official repository for bootstrap|
|JDK-8313707||GHA: Bootstrap sysroots with --variant=minbase|
|JDK-8313711||Cherry-pick WebKit 616.1 stabilization fixes|
|JDK-8313752||InstanceKlassFlags::print_on doesn't print the flag names|
|JDK-8313765||Invalid CEN header (invalid zip64 extra data field size)|
|JDK-8313796||AsyncGetCallTrace crash on unreadable interpreter method pointer|
|JDK-8313856||Replace VLA with malloc in pango|
|JDK-8313874||JNI NewWeakGlobalRef throws exception for null arg|
|JDK-8313900||Possible NULL pointer access in NativeAudioSpectrum and NativeVideoBuffer|
|JDK-8313901||[TESTBUG] test/hotspot/jtreg/compiler/codecache/CodeCacheFullCountTest.java fails with java.lang.VirtualMachineError|
|JDK-8313904||[macos] All signing tests which verifies unsigned app images are failing|
|JDK-8314020||Print instruction blocks in byte units|
|JDK-8314024||SIGSEGV in PhaseIdealLoop::build_loop_late_post_work due to bad immediate dominator info|
|JDK-8314063||The socket is not closed in Connection::createSocket when the handshake failed for LDAP connection|
|JDK-8314117||RISC-V: Incorrect VMReg encoding in RISCV64Frame.java|
|JDK-8314118||Update JMH devkit to 1.37|
|JDK-8314139||TEST_BUG: runtime/os/THPsInThreadStackPreventionTest.java could fail on machine with large number of cores|
|JDK-8314144||gc/g1/ihop/TestIHOPStatic.java fails due to extra concurrent mark with -Xcomp|
|JDK-8314212||Crash when loading cnn.com in WebView|
|JDK-8314216||Case enumConstant, pattern compilation fails|
|JDK-8314262||GHA: Cut down cross-compilation sysroots deeper|
|JDK-8314423||Multiple patterns without unnamed variables|
|JDK-8314426||runtime/os/TestTrimNative.java is failing on slow machines|
|JDK-8314501||Shenandoah: sun/tools/jhsdb/heapconfig/JMapHeapConfigTest.java fails|
|JDK-8314517||some tests fail in case ipv6 is disabled on the machine|
|JDK-8314618||RISC-V: -XX:MaxVectorSize does not work as expected|
|JDK-8314649||Enhanced archival support redux|
|JDK-8314656||GHA: No need for Debian ports keyring installation after JDK-8313701|
|JDK-8314679||SA fails to properly attach to JVM after having just detached from a different JVM|
|JDK-8314730||GHA: Drop libfreetype6-dev transitional package in favor of libfreetype-dev|
|JDK-8314850||SharedRuntime::handle_wrong_method() gets called too often when resolving Continuation.enter|
|JDK-8314960||Add Certigna Root CA - 2|
|JDK-8315020||The macro definition for LoongArch64 zero build is not accurate.|
|JDK-8315051||jdk/jfr/jvm/TestGetEventWriter.java fails with non-JVMCI GCs|
|JDK-8315534||Incorrect warnings about implicit annotation processing|
|JDK-8315657||Application window not activated in macOS 14 Sonoma|
|JDK-8316879||RegionMatches1Tests fails if CompactStrings are disabled after JDK-8302163|
|JDK-8317121||vector_masked_load instruction is moved too early after JDK-8286941|