= Proposed System Wide Change: Java 8 = https://fedoraproject.org/wiki/Changes/Java8 Change owner(s): Omair Majid <omajid@xxxxxxxxxx> Make Java 8 (provided by OpenJDK 8 which is java-1.8.0-openjdk) the default Java runtime. The current default Java runtime (Java 7, provided by OpenJDK 7, java-1.7.0-openjdk) will be obsoleted and removed. This is essentially an upgrade to the latest Java and OpenJDK version. == Detailed Description == The current default Java 7 runtime in Fedora is OpenJDK 7. The latest version of OpenJDK, 8, was released on 18 March 2014. Given that Fedora 21 will not be released before August, it makes sense to include the latest version of OpenJDK in Fedora 21. OpenJDK 8 is a significant update to Java. It brings in significant new features to the Java language, including lambdas, a new javascript engine and lots of new library features. A complete list of features is available [1]. OpenJDK 8 is a backwards compatible update. Theoretically everything that worked against OpenJDK 7 should continue working against OpenJDK 8. There are a few exceptions: OpenJDK8 is much more strict when it comes to building javadocs. Many - javadoc package in Fedora fail to build. Those that are built should continue working just fine. Packages that rely on non-public OpenJDK API may fail to build/run. A complete list of incompatibilities is available [2]. The incompatibilities are source and behavioral only. It may be a good idea to mass rebuild Java packages against OpenJDK 8 to spot any source incompatibilities earlier. This is not required. == Scope == * Proposal owners: ** Deprecate/Obsolete java-1.7.0-openjdk ** Promote java-1.8.0-openjdk to a full java runtime status (fix provides in package) ** In case of a mass rebuild, supply/apply patches to fix build against OpenJDK 8 * Other developers: ** icedtea-web maintainers will need to update icedtea-web to run against OpenJDK 8 ** Other java packagers will need to apply patches to their java package to ensure they can build against OpenJDK 8 ** Everyone will need to test packages to verify that they work against OpenJDK 8 * Release engineering: ** Remove java-1.7.0-openjdk ** Possibly mass-rebuild (?) all Java packages. This is not strictly required to make OpenJDK 8 the default Java runtime. * Policies and guidelines: ** Many -javadoc packages fail to build. The OpenJDK 8 maintainers and the Java SIG are working on identifying a solution. The solution may require [3] guideline changes making -javadoc subpackages optional. [1] http://openjdk.java.net/projects/jdk8/features [2] http://www.oracle.com/technetwork/java/javase/8-compatibility-guide-2156366.html [3] https://lists.fedoraproject.org/pipermail/devel/2014-March/196808.html _______________________________________________ devel-announce mailing list devel-announce@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel-announce -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
