Differences between revisions 38 and 39
Revision 38 as of 2013-11-29 21:46:27
Size: 3642
Editor: GeoffSimmons
Comment: Expand and update example package generation process, de-sudoify.
Revision 39 as of 2015-08-06 16:50:31
Size: 3257
Editor: GeoffSimmons
Comment: Amend for Debian 8 release, bump example JDK version.
Deletions are marked like this. Additions are marked like this.
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 * java-package 0.42 is obsolete and no longer available.
 * java-package 0.50 is a revamped version available for [[DebianWheezy|Debian 7 "Wheezy"]].

 * Debian recommends the use of OpenJDK ([[DebianPkg:openjdk-6-jdk]] / [[DebianPkg:openjdk-6-jre]] or [[DebianPkg:openjdk-7-jdk]] / [[DebianPkg:openjdk-7-jre]]) which is packaged and available in all Debian releases.
 * Debian recommends the use of OpenJDK packages ([[DebianPkg:openjdk-7-jdk]] / [[DebianPkg:openjdk-7-jre]]) instead of non-free packages created by this utility.
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  * The J2SE Development Kit (JDK), version 6 (update >= 10), 7
  * The J2SE Runtime Environment (JRE), version 6 (update >= 10), 7
  * The J2SE API Javadoc, version 6 (update >= 10), 7

----
'''NOTE''': All other previously supported JVM (Blackdown, IBM, ..) have been removed
and will only be added back on users demand.
----
  * The Java Development Kit (JDK), version 6, 7 and 8
  * The Java Runtime Environment (JRE), version 6, 7 and 8
  * The Java API Javadoc, version 6, 7 and 8
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# Debian 7 "Wheezy"
deb http://http.debian.net/debian/ wheezy main contrib
# Debian 8 "Jessie"
deb http://httpredir.debian.org/debian/ jessie main contrib
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 1. Download the desired Java JDK/JRE binary distribution ([[http://www.oracle.com/technetwork/java/javase/downloads/index.html|Oracle]]). Choose tar.gz archives or self-extracting archives, do __not__ choose the RPM!  1. Download the desired Java JDK/JRE binary distribution ([[http://www.oracle.com/technetwork/java/javase/downloads|Oracle]]). Choose tar.gz archives or self-extracting archives, do __not__ choose the RPM!
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$ make-jpkg jdk-7u45-linux-x64.tar.gz $ make-jpkg jdk-8u51-linux-x64.tar.gz
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# dpkg -i oracle-j2sdk1.7_1.7.0+update45_amd64.deb # dpkg -i oracle-java8-jdk_8u51_amd64.deb
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The appropriate java binary will automatically be in PATH by virtue of the /usr/bin/java alternative symlink. The appropriate java binary will automatically be in PATH by virtue of the {{{/usr/bin/java}}} alternative symlink.
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You may as well use the update-alternatives tool from java-common package which let you update all alternatives belonging to one runtime or development kit at a time. You may also use the update-alternatives tool from DebianPkg:java-common package which lets you update all alternatives belonging to one runtime/development kit at a time.
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# update-java-alternatives -s j2sdk1.7-oracle # update-java-alternatives -s jdk-8-oracle-x64

Translation(s): none


NOTE:

  • Debian recommends the use of OpenJDK packages (openjdk-7-jdk / openjdk-7-jre) instead of non-free packages created by this utility.


java-package provides the ability to build a Debian package from a Java binary distribution by running make-jpkg <java binary archive file> (with archive files downloaded from providers listed below). Should your interest be more on the development with Java under Debian, then follow the Java link. To learn more about the packaging of Java-written programs and libraries for Debian, see Teams/JavaPackaging.

The package includes the make-jpkg command to do this. Typical usage consists in:

  • downloading one of the java binary archive listed below
  • invoking make-jpkg to build a Debian package from the downloaded archive
  • installing the generated package

Supported Java binary distributions currently include:

Process

  1. Add a "contrib" component to /etc/apt/sources.list, for example:

    # Debian 8 "Jessie"
    deb http://httpredir.debian.org/debian/ jessie main contrib
  2. Update the list of available packages and install the java-package package:

    # apt-get update && apt-get install java-package && exit
  3. Download the desired Java JDK/JRE binary distribution (Oracle). Choose tar.gz archives or self-extracting archives, do not choose the RPM!

  4. Use java-package to create a Debian package, for example:

    $ make-jpkg jdk-8u51-linux-x64.tar.gz
  5. Install the binary package created:

    $ su
    # dpkg -i oracle-java8-jdk_8u51_amd64.deb

Configuration

By default the DebianAlternatives will automatically install the best version of Java as the default version. If the symlinks have been manually set they will be preserved by the tools. The update-alternatives tools try hard to respect explicit configuration from the local admin. Local manual symlinks appear to be an explicit configuration. In order to reset the alternative symlinks to their default value use the --auto option.

# update-alternatives --auto java

If you'd like to override the default to perhaps use a specific version then use --config and manually select the desired version.

# update-alternatives --display java
# update-alternatives --config java 

Choose the appropriate number for the desired alternative.

The appropriate java binary will automatically be in PATH by virtue of the /usr/bin/java alternative symlink.

You may also use the update-alternatives tool from java-common package which lets you update all alternatives belonging to one runtime/development kit at a time.

# update-java-alternatives -l
# update-java-alternatives -s jdk-8-oracle-x64


CategoryJava