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- Dear customer,
-
- The SuSE Linux distribution contains several versions of development
- kits for developing and running java applications and several versions
- of runtime environments only for running java applications.
-
- To be able to run java applications which need different versions of
- runtime environment or development kit, you may install several
- versions at the same time. One of these development kits or runtime
- environments is always the default while the other versions can be used
- to develop or run particular applications.
-
- Note: In the next text JDK stands for java development kit and JRE for
- java runtime environment.
-
-
-
- The directory /etc/java contains configuration files for all installed
- JDKs and JREs.
-
- These configuration files are used by SuSEconfig and setDefaultJava
- scripts which will help you to set default JDK or JRE on your computer.
-
- They are also used by script setJava which will help you to use one of
- valid versions of JDKs or JREs with your application.
-
-
- Syntax of configuration files:
- ------------------------------
- 1. empty lines are ignored
- 2. white characters are ignored (spaces, TABs)
- 3. comments are ignored, they are prefixed by hash '#'
- 4. Parameters and values are delimited by ':' or '='
-
- Available parameters in config files (see the example config file below):
- --------------------------------------------------------------------
-
- Priority:
- - value is an integer
- - the JDK or JRE with higher priority is selected when there are more
- JDKs or JREs acceptable for given parameters in the scripts setJava and
- setDefaultJava
- - a lower value defines higher priority
-
- Vendor:
- - value is a string (spaces are allowed)
- - defines java vendor name
-
- Version:
- - value is composed of integers delimited by dots
- - defines JDK or JRE version
-
- Devel:
- - value is either "True" or "False"
- - value "True" defines that this java is JDK
-
- JAVA_BINDIR:
- - value is a path to a directory
- - defines the path to java executables
- - will be used for PATH and JAVA_BINDIR environment variables
-
- JAVA_ROOT:
- - value is a path to a directory
- - defines the path to the java root directory
- - is exactly the same for the JDK and the JRE of the same version
- and vendor
- - will be used for JAVA_ROOTDIR environment variable
-
- JAVA_HOME:
- - value is path to directory
- - some applications use this value to find java executables
- in $JAVA_HOME/bin
- - the value is usually different for JDK and JRE of the same version
- and vendor
- - will be used for JAVA_HOME environment variable
-
- JRE_HOME:
- - value is a path to a directory
- - some applications use this value to search for java executables and
- libraries in $JAVA_JRE/bin and $JAVA_JRE/lib
- - the value is the same for the JDK and the JRE of the same version
- and vendor
- - will be used for JRE_HOME environment variable
-
- JDK_HOME:
- - value is a path to a directory
- - it is added as supplement to JRE_HOME
- - it is defined for all JDKs
- - will be used for JDK_HOME environment variable
-
- SDK_HOME:
- - value is a path to a directory
- - it is added as supplement to JRE_HOME
- - it is defined for JDKs with version 1.2 and higher
- - will be used for SDK_HOME environment variable
-
- JAVA_LINK:
- - value is a absolute or relative path to a directory
- - it is used by script setDefaultJava and SuSEconfig,
- - the link /usr/lib/java and other compatibility links will point
- to this directory name or to this path
-
- alternative:
- - first value defines target; relative or absolute path to a vendor and/or
- version specific file
- - second value defines link name; absolute path of a symbolic link
- which is common for more alternatives
- - it defines a common symbolic link for alternative files from different
- JREs/SDKs
- - the script setDefaultJava is able to update the links for a selected
- java
-
- more_alternatives:
- - value is the name of another java configuration file
- - it points to a configuration file which contains more alternative links
- which should be set together with this java
- - it is often used in the config files for SDKs which use some sources
- from the related JREs
-
-
- Example:
- # this is configutation file for SDK from Sun Microsystems, version 1.4.2
- # it is installed in /usr/lib/SunJava2-1.4
-
- Priority: 30
-
- Vendor : Sun
- Version : 1.4.2
- Devel : True
-
- JAVA_BINDIR = /usr/lib/SunJava2-1.4/bin
- JAVA_ROOT = /usr/lib/SunJava2-1.4
- JAVA_HOME = /usr/lib/SunJava2-1.4
- JRE_HOME = /usr/lib/SunJava2-1.4/jre
- JDK_HOME = /usr/lib/SunJava2-1.4
- SDK_HOME = /usr/lib/SunJava2-1.4
-
- JAVA_LINK = SunJava2-1.4
-
-
- # alternatives
- #
- # man pages
- alternative: appletviewer-SunJava2.1.gz /usr/share/man/man1/appletviewer.1.gz
- alternative: extcheck-SunJava2.1.gz /usr/share/man/man1/extcheck.1.gz
- alternative: idlj-SunJava2.1.gz /usr/share/man/man1/idlj.1.gz
- alternative: jar-SunJava2.1.gz /usr/share/man/man1/jar.1.gz
- alternative: jarsigner-SunJava2.1.gz /usr/share/man/man1/jarsigner.1.gz
- alternative: javac-SunJava2.1.gz /usr/share/man/man1/javac.1.gz
- alternative: javadoc-SunJava2.1.gz /usr/share/man/man1/javadoc.1.gz
- alternative: javah-SunJava2.1.gz /usr/share/man/man1/javah.1.gz
- alternative: javap-SunJava2.1.gz /usr/share/man/man1/javap.1.gz
- alternative: jdb-SunJava2.1.gz /usr/share/man/man1/jdb.1.gz
- alternative: native2ascii-SunJava2.1.gz /usr/share/man/man1/native2ascii.1.gz
- alternative: rmic-SunJava2.1.gz /usr/share/man/man1/rmic.1.gz
- alternative: serialver-SunJava2.1.gz /usr/share/man/man1/serialver.1.gz
- #
- # japanese man pages
- alternative: appletviewer-SunJava2.1.gz /usr/share/man/ja/man1/appletviewer.1.gz
- alternative: extcheck-SunJava2.1.gz /usr/share/man/ja/man1/extcheck.1.gz
- alternative: idlj-SunJava2.1.gz /usr/share/man/ja/man1/idlj.1.gz
- alternative: jar-SunJava2.1.gz /usr/share/man/ja/man1/jar.1.gz
- alternative: jarsigner-SunJava2.1.gz /usr/share/man/ja/man1/jarsigner.1.gz
- alternative: javac-SunJava2.1.gz /usr/share/man/ja/man1/javac.1.gz
- alternative: javadoc-SunJava2.1.gz /usr/share/man/ja/man1/javadoc.1.gz
- alternative: javah-SunJava2.1.gz /usr/share/man/ja/man1/javah.1.gz
- alternative: javap-SunJava2.1.gz /usr/share/man/ja/man1/javap.1.gz
- alternative: jdb-SunJava2.1.gz /usr/share/man/ja/man1/jdb.1.gz
- alternative: native2ascii-SunJava2.1.gz /usr/share/man/ja/man1/native2ascii.1.gz
- alternative: rmic-SunJava2.1.gz /usr/share/man/ja/man1/rmic.1.gz
- alternative: serialver-SunJava2.1.gz /usr/share/man/ja/man1/serialver.1.gz
- #
- more_alternatives: java2-jre
-
-
- Have a lot of fun,
-
- Your SuSE team