This is a SlackBuild that will repackage a variety of pre-built Java
Development Kit (JDK) binaries as a Slackware package that can be easily
installed, upgraded, or removed using Slackware's native package management
tools.

This SlackBuild is based on the official Slackware 15.0 java.SlackBuild by
Patrick Volkerding (extra/source/java) and the Oracle JDK SlackBuilds by
Ebben Aries (https://slackbuilds.org/repository/15.0/development/jdk23/).

To run this SlackBuild, either place a single JDK binary package in this
directory and run:

    ./java.SlackBuild

Or specify the JDK binary package to be repackaged:

    ./java.SlackBuild openjdk-25.0.1_linux-x64_bin.tar.gz


The supported JDK binaries are:

* Oracle JDK      - https://www.oracle.com/java/technologies/downloads/
* OpenJDK         - https://jdk.java.net/

This SlackBuild will not work for Java 8.  It _should_ work for all LTS
releases since Java 11.  It _should_ work for 64-bit architectures: x86_64 and
aarch64.

You should have only *one* JDK package installed on your system.  The name of
the Slackware package created will depend on the JDK you use: "jdk" for Oracle
and "openjdk" for OpenJDK.  If you are upgrading, say, an OpenJDK package to a
more recent version, you can use upgradepkg.  If you are switching between
providers (say, Oracle to OpenJDK) you should remove the old JDK first before
installing the new one.

Each package installs to /usr/lib64/jdk-<version> and creates a symlink at
/usr/lib64/java which points to the install directory.

On first install of the JDK package, you should log out and log in again so
that JAVA_HOME and PATH are set appropriately for the new JDK.  JAVA_HOME is
set to use the /usr/lib64/java symlink so you can upgrade versions or swap
providers without having to log out and log in again.

Note that /etc/man_db.conf already includes /usr/lib64/java/man so we do not
need to add anything to MANPATH.

Oracle JDK
==========

    https://www.oracle.com/java/technologies/downloads/

Oracle provides releases for long-term support (LTS) versions as well as the
latest version (if not LTS).  These Oracle JDKs are licensed under the "Oracle
No-Fee Terms and Conditions" (NFTC) license.

Older Oracle JDK releases may also work but require an Oracle account to
download and have a more restrictive license.

OpenJDK
=======

    https://jdk.java.net/

Oracle also provides the latest OpenJDK release, licensed under the GPLv2 with
the Classpath Exception.  The OpenJDK release is essentially identical to the
Oracle JDK.

Older, unsupported OpenJDK builds going back to Java 9 can be found at:

    https://jdk.java.net/archive/