The IcedTea project provides a harness to build the source code from OpenJDK using Free Software build tools, along with additional features such as the ability to build against system libraries and support for alternative virtual machines and architectures beyond those supported by OpenJDK.

This release updates our OpenJDK 7 support in the 2.6.x series with the January 2017 security fixes from OpenJDK 7 u131.

If you find an issue with the release, please report it to our bug database under the appropriate component. Development discussion takes place on the distro-pkg-dev OpenJDK mailing list and patches are always welcome.

Full details of the release can be found below.

What’s New?

New in release 2.6.9 (2017-02-14)

  • Security fixes
  • Import of OpenJDK 7 u131 build 0
    • S6253144: Long narrowing conversion should describe the algorithm used and implied “risks”
    • S6328537: Improve javadocs for Socket class by adding references to SocketOptions
    • S6978886: javadoc shows stacktrace after print error resulting from disk full
    • S6995421: Eliminate the static dependency to
    • S6996372: synchronizing handshaking hash
    • S7027045: (doc) java/awt/ has several typos in javadoc
    • S7054969: Null-check-in-finally pattern in java/security documentation
    • S7072353: JNDI libraries do not build with javac -Xlint:all -Werror
    • S7075563: Broken link in “javax.swing.SwingWorker”
    • S7077672: jdk8_tl nightly fail in step-2 build on 8/10/11
    • S7088502: Security libraries don’t build with javac -Werror
    • S7092447: Clarify the default locale used in each locale sensitive operation
    • S7093640: Enable client-side TLS 1.2 by default
    • S7103570: AtomicIntegerFieldUpdater does not work when SecurityManager is installed
    • S7117360: Warnings in java.util.concurrent.atomic package
    • S7117465: Warning cleanup for IMF classes
    • S7187144: JavaDoc for ScriptEngineFactory.getProgram() contains an error
    • S8000418: javadoc should used a standard “generated by javadoc” string
    • S8000666: javadoc should write directly to Writer instead of composing strings
    • S8000673: remove dead code from HtmlWriter and subtypes
    • S8000970: break out auxiliary classes that will prevent multi-core compilation of the JDK
    • S8001669: javadoc internal DocletAbortException should set cause when appropriate
    • S8008949: javadoc stopped copying doc-files
    • S8011402: Move blacklisting certificate logic from hard code to data
    • S8011547: Update XML Signature implementation to Apache Santuario 1.5.4
    • S8012288: XML DSig API allows wrong tag names and extra elements in SignedInfo
    • S8016217: More javadoc warnings
    • S8017325: Cleanup of the javadoc <code> tag in
    • S8017326: Cleanup of the javadoc <code> tag in
    • S8019772: Fix doclint issues in javax.crypto and subpackages
    • S8020557: javadoc cleanup in
    • S8020688: Broken links in documentation at
    • S8021108: Clean up doclint warnings and errors in java.text package
    • S8021417: Fix doclint issues in java.util.concurrent
    • S8021833: javadoc cleanup in
    • S8022120: JCK test api/javax_xml/crypto/dsig/TransformService/index_ParamMethods fails
    • S8022175: Fix doclint warnings in javax.print
    • S8022406: Fix doclint issues in java.beans
    • S8022746: List of spelling errors in API doc
    • S8024779: [macosx] SwingNode crashes on exit
    • S8025085: [javadoc] some errors in javax/swing
    • S8025218: [javadoc] some errors in java/awt classes
    • S8025249: [javadoc] fix some javadoc errors in javax/swing/
    • S8025409: Fix javadoc comments errors and warning reported by doclint report
    • S8026021: more fix of javadoc errors and warnings reported by doclint, see the description
    • S8037099: [macosx] Remove all references to GC from native OBJ-C code
    • S8038184: XMLSignature throws StringIndexOutOfBoundsException if ID attribute value is empty String
    • S8038349: Signing XML with DSA throws Exception when key is larger than 1024 bits
    • S8049244: XML Signature performance issue caused by unbuffered signature data
    • S8049432: New tests for TLS property jdk.tls.client.protocols
    • S8050893: (smartcardio) Invert reset argument in tests in sun/security/smartcardio
    • S8059212: Modify sun/security/smartcardio manual regression tests so that they do not just fail if no cardreader found
    • S8068279: (typo in the spec) javax.script.ScriptEngineFactory.getLanguageName
    • S8068491: Update the protocol for references of to HTTPS.
    • S8069038: javax/net/ssl/TLS/ needs to be updated for JDK-8061210
    • S8076369: Introduce the jdk.tls.client.protocols system property for JDK 7u
    • S8139565: Restrict certificates with DSA keys less than 1024 bits
    • S8140422: Add mechanism to allow non default root CAs to be not subject to algorithm restrictions
    • S8140587: Atomic*FieldUpdaters should use Class.isInstance instead of direct class check
    • S8143959: Certificates requiring blacklisting
    • S8145984: [macosx] sun.lwawt.macosx.CAccessible leaks
    • S8148516: Improve the default strength of EC in JDK
    • S8149029: Secure validation of XML based digital signature always enabled when checking wrapping attacks
    • S8151893: Add security property to configure XML Signature secure validation mode
    • S8155760: Implement Serialization Filtering
    • S8156802: Better constraint checking
    • S8161228: URL objects with custom protocol handlers have port changed after deserializing
    • S8161571: Verifying ECDSA signatures permits trailing bytes
    • S8163304: jarsigner -verbose -verify should print the algorithms used to sign the jar
    • S8164908: ReflectionFactory support for IIOP and custom serialization
    • S8165230: RMIConnection addNotificationListeners failing with specific inputs
    • S8166393: disabledAlgorithms property should not be strictly parsed
    • S8166591: [macos 10.12] Trackpad scrolling of text on OS X 10.12 Sierra is very fast (Trackpad, Retina only)
    • S8166739: Improve extensibility of ObjectInputFilter information passed to the filter
    • S8166875: (tz) Support tzdata2016g
    • S8166878: Connection reset during TLS handshake
    • S8167356: Follow up fix for jdk8 backport of 8164143. Changes for CMenuComponent.m were missed
    • S8167459: Add debug output for indicating if a chosen ciphersuite was legacy
    • S8167472: Chrome interop regression with JDK-8148516
    • S8167591: Add MD5 to signed JAR restrictions
    • S8168861: AnchorCertificates uses hardcoded password for cacerts keystore
    • S8168993: JDK8u121 L10n resource file update
    • S8169191: (tz) Support tzdata2016i
    • S8169688: Backout (remove) MD5 from jdk.jar.disabledAlgorithms for January CPU
    • S8169911: Enhanced tests for jarsigner -verbose -verify after JDK-8163304
    • S8170131: Certificates not being blocked by jdk.tls.disabledAlgorithms property
    • S8170268: 8u121 L10n resource file update – msgdrop 20
    • S8173622: Backport of 7180907 is incomplete
    • S8173849: Fix use of java.util.Base64 in test cases
    • S8173854: [TEST] Update DHEKeySizing test case following 8076328 & 8081760
  • Backports
  • Bug fixes
    • PR3318: Replace ‘infinality’ with ‘improved font rendering’ (–enable-improved-font-rendering)
    • PR3318: Fix compatibility with vanilla Fontconfig
    • PR3318: Fix glyph y advance
    • PR3318: Always round glyph advance in 26.6 space
    • PR3318: Simplify glyph advance handling
    • PR3324: Fix NSS_LIBDIR substitution in broken by PR1989
  • AArch64 port

The tarballs can be downloaded from:

We provide both gzip and xz tarballs, so that those who are able to make use of the smaller tarball produced by xz may do so.

The tarballs are accompanied by digital signatures available at:

These are produced using my public key. See details below.

  • PGP Key: ed25519/0xCFDA0F9B35964222 (hkp://
  • Fingerprint = 5132 579D D154 0ED2 3E04 C5A0 CFDA 0F9B 3596 4222

GnuPG >= 2.1 is required to be able to handle this key.

SHA256 checksums:

  • 86d0fb6182e10f2f92785dce919d03602694928f5e585d42034a3f8ff3bda079 icedtea-2.6.9.tar.gz
  • 6660ee155cd6738cef2b7dcd83ce15eded595c801100900b51906c76d83b5f62 icedtea-2.6.9.tar.gz.sig
  • 8e4f3eb8d41ef66f1797825343141046973c124b18bf7d4698fae0a9a25495ea icedtea-2.6.9.tar.xz
  • ef7b9886ba619bc206a0b540b80ea11f85bac44e0658ea5588833830579c7c81 icedtea-2.6.9.tar.xz.sig

The checksums can be downloaded from:

A 2.6.9 ebuild for Gentoo is available.

The following people helped with these releases:

We would also like to thank the bug reporters and testers!

To get started:

$ tar xzf icedtea-2.6.9.tar.gz


$ tar x -I xz -f icedtea-2.6.9.tar.xz


$ mkdir icedtea-build
$ cd icedtea-build
$ ../icedtea-2.6.9/configure
$ make

Full build requirements and instructions are available in the INSTALL file.

Happy hacking!