Dear Wiki user, You have subscribed to a wiki page or wiki category on "Fedora Project Wiki" for change notification. The following page has been changed by MurrayMcAllister: http://fedoraproject.org/wiki/Docs/Beats/Java?action=diff&rev2=83&rev1=82 The comment on the change is: revising added content ------------------------------------------------------------------------------ === OpenJDK 6 === - This release of Fedora includes OpenJDK 6. + Fedora 9 includes OpenJDK 6, an open source implementation of the Java Platform, Standard Edition. Fedora will track Sun's stable OpenJDK 6 branch. === OpenJDK Replaces IcedTea === - The OpenJDK 6 packages (java-1.6.0-openjdk*) replace their IcedTea counterparts (java-1.7.0-icedtea*). The Fedora 8 IcedTea package tracks the unstable OpenJDK 7 branch whereas java-1.6.0-openjdk tracks the stable OpenJDK 6 branch. The decision to have OpenJDK 6 replace IcedTea was made for several reasons: + The OpenJDK 6 packages, `java-1.6.0-openjdk*`, replace their IcedTea counterparts, `java-1.7.0-icedtea*`. The Fedora 8 IcedTea package tracks the unstable OpenJDK 7 branch, whereas `java-1.6.0-openjdk` tracks the stable OpenJDK 6 branch. The decision to have OpenJDK 6 replace IcedTea was made for several reasons: - * Sun has replaced most of the encumbrances for which IcedTea was providing replacements. + * Sun has replaced most of the encumbrances for which IcedTea was providing replacements for. - * OpenJDK contributes ~99% of the code in the java-1.6.0-openjdk package. * IcedTea's mandate is to merge as much as possible with OpenJDK, so the differences between IcedTea and OpenJDK should diminish over time. - * OpenJDK 6 is a stable branch, whereas OpenJDK 7 is unstable and not expected to ship a stable release until 2009. + * OpenJDK 6 is a stable branch, whereas OpenJDK 7 is unstable, and is not expected to ship a stable release until 2009. * Sun has licensed the OpenJDK trademark for use in Fedora. - * Shipping both OpenJDK 6 and IcedTea would have been confusing and would have added size to the distribution. + * Shipping both OpenJDK 6 and IcedTea would have been confusing, and would have added size to the distribution. - IcedTea continues to provide autotools support, a portable interpreter for ppc and ppc64 support, plugin support, Web Start support and patches to integrate OpenJDK into Fedora. The IcedTea sources are included in the java-1.6.0-openjdk SRPM. + IcedTea continues to provide autotools support, a portable interpreter for PowerPC and 64-bit PowerPC architectures, plugin support, Web Start support, and patches to integrate OpenJDK into Fedora. The IcedTea sources are included in the `java-1.6.0-openjdk` SRPM. - OpenJDK 6 is not Java compatible. Work is underway to certify it as such. + OpenJDK 6 is not Java compatible; work is underway to certify it Java compatible. === Handling Java Applets === - Upstream OpenJDK does not provide a plugin. The Fedora OpenJDK packages include an adaptation of `gcjwebplugin` that runs untrusted applets safely in a web browser. The plugin is packaged as {{{java-1.6.0-openjdk-plugin}}}. + Upstream OpenJDK does not provide a plugin. The Fedora OpenJDK packages include an adaptation of `gcjwebplugin`, that runs untrusted applets safely in a Web browser. The plugin is packaged as `java-1.6.0-openjdk-plugin`. - * The `gcjwebplugin` adaptation has [https://bugzilla.redhat.com/show_bug.cgi?id=304021 no support for the bytecode-to-JavaScript bridge (LiveConnect)]. Applets that rely on this bridge will not work. Experimental LiveConnect support exists in the IcedTea repository but it is not ready for deployment in Fedora. + * The `gcjwebplugin` adaptation has [https://bugzilla.redhat.com/show_bug.cgi?id=304021 no support for the bytecode-to-JavaScript bridge (LiveConnect)]. Applets that rely on this bridge will not work. Experimental LiveConnect support exists in the IcedTea repository, but is not ready for deployment in Fedora. - * The `gcjwebplugin` adaptation has [https://bugzilla.redhat.com/show_bug.cgi?id=304031 no support for signed applets]. Signed applets will run in untrusted mode. Experimental support for signed applets is present in the IcedTea repository but it is not ready for deployment in Fedora. + * The `gcjwebplugin` adaptation has [https://bugzilla.redhat.com/show_bug.cgi?id=304031 no support for signed applets]. Signed applets will run in untrusted mode. Experimental support for signed applets is present in the IcedTea repository, but it is not ready for deployment in Fedora. - * The `gcjwebplugin` security policy may be overly restrictive. To enable restricted applets, run {{{firefox -g}}} in a terminal window to see what is being restricted, then grant the restricted permission in {{{/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0/jre/lib/security/java.policy}}} + * The `gcjwebplugin` security policy may be too restrictive. To enable restricted applets, run {{{firefox -g}}} in a terminal window to see what is being restricted, then grant the restricted permission in the `/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0/jre/lib/security/java.policy` file. === Handling Java Web Start Applications === - Upstream OpenJDK does not provide Web Start support. Experimental Web Start support is present in the IcedTea repository but it is not ready for deployment in Fedora. + Upstream OpenJDK does not provide Java Web Start support. Experimental Java Web Start support is present in the IcedTea repository, but is not ready for deployment in Fedora. === Fedora and JPackage === - Fedora includes many packages derived from the [http://jpackage.org JPackage Project]. Some of these packages are modified in Fedora to remove proprietary software dependencies and to make use of GCJ's ahead-of-time compilation feature. Use the Fedora repositories to update these packages or use the JPackage repository for packages not provided by Fedora. Refer to [http://jpackage.org the JPackage website] for more information on the project and the software it provides. + Fedora includes many packages derived from the [http://jpackage.org JPackage Project]. Some of these packages are modified in Fedora to remove proprietary software dependencies, and to make use of GCJ's ahead-of-time compilation feature. Use the Fedora repositories to update these packages, or use the JPackage repository for packages not provided by Fedora. Refer to [http://jpackage.org the JPackage website] for more information on the project, and the software it provides. [[Admonition("warning", "Mixing Packages from Fedora and JPackage", "Research package compatibility before you install software from both the Fedora and JPackage repositories on the same system. Incompatible packages may cause complex issues.")]] - An incompatibility between Fedora and JPackage jpackage-utils that prevented installing JPackage's jpackage-utils on Fedora is [https://bugzilla.redhat.com/show_bug.cgi?id=260161 fixed] in this release. + An incompatibility between Fedora and JPackage `jpackage-utils`, that prevented installing JPackage's `jpackage-utils` on Fedora, is [https://bugzilla.redhat.com/show_bug.cgi?id=260161 resolved] in this release. -- Fedora-relnotes-content mailing list Fedora-relnotes-content@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-relnotes-content
