Compile JDK in FreeBSD

Since JDK 1.1.8 and later, FreeBSD has been unable to release pre-compiled JDK software packages due to various Java authorization issues, nor has it been removed from the so-called official release.

To use the latest Java Technology on FreeBSD, You need to compile and install it by yourself in the following ways:

(1) FreeBSD + LINUX compatibility enable + Linux Process filesystem mounted
(2)Linux Platform-Java (TM) 2 SDK, self-extracting file
(3)SCSL (Sun Community Source Licensing) Source
-SCSL Source
-SCSL binaries-needed to complete source build
-Mozilla Binaries
(4)BSD Java porting patchsets

The compilation is actually in the Linux compatibility mode of FreeBSD. Based on the Linux JDK binary, after applying the SCSL source to the BSD patch, compile the native JDK version on FreeBSD! (Wow, it's really an interface ~~~!!!)

Therefore, in the example of FreeBSD 5.4 Release, the first step is to modify the/etc/fstab file and add:

Linprocfs/compat/linux/proc linprocfs rw 0 0

After the restart, you can use kldstat to check whether the Linux process FileSystem has been mounted:

FreeBSD # kldstat Id Refs Address Size Name 1 10 0xc0400000 5dde24 kernel 2 14 0xc09de000 56270 acpi. ko 3 1 0xc1803000 6000 linprocfs. ko 4 1 0xc180c000 17000 linux. ko

Next, of course, we need to upgrade to the latest ports tree:

FreeBSD # cd/usr/ports FreeBSD # cvsup-g-L 2/root/ports-supfile

Then, go to the JDK port directory and use JDK 14:

FreeBSD # cd/usr/ports/java/jdk14 FreeBSD # make

If it is the first compilation, you should see the following prompt:

FreeBSD # make Jdk-1.4.2p7_1: The source distribution exists on your system, but due Licensing restrictions you still need to download Patchset, bsd-jdk14-patches-7.tar.gz, from Http://www.eyesbeyond.com/freebsddom/java/jdk14.html. Please place the patchset in/usr/ports/distfiles.

This indicates that we have missing some distfiles required for compilation. Fortunately, the download URL has been provided by the system. As instructed above
Capture the required files and put them here:/usr/ports/distfiles. The list of downloaded files is as follows for your reference:

• Bsd-jdk14-patches-7.tar.gz
• J2sdk-1_4_2-bin-scsl.zip
• J2sdk-1_4_2-mozilla_headers-unix.zip
• J2sdk-1_4_2-src-scsl.zip
• J2sdk-1_4_2_09-linux-i586.bin
• J2sdk-sec-1_4_2-src-scsl.zip

With these files, you can start to make the JDK:

FreeBSD # cd/usr/ports/java/jdk14 FreeBSD # make

During the make process, you will refer to the system environment to fetch the following packages on the Internet. Of course, if you have installed them, it will be great ~~~!

• Autoconf-000227.tar.bz2
• Automake-1.4-p6.tar.gz
• Rpm- 3.0.6 .Tar.gz

After installing the preceding packages, make starts to return to the JDK compilation process. below is the compilation process:

Compiling/usr/ports/java/jdk14/work/hotspot/src/share/vm/oops/cpCacheKlass. cpp Compiling/usr/ports/java/jdk14/work/hotspot/src/share/vm/oops/cpCacheOop. cpp Compiling/usr/ports/java/jdk14/work/hotspot/src/share/vm/utilities/debug. cpp Compiling/usr/ports/java/jdk14/work/hotspot/src/share/vm/code/debugInfo. cpp Compiling/usr/ports/java/jdk14/work/hotspot/src/share/vm/code/debugInfoRec. cpp Compiling/usr/ports/java/jdk14/work/hotspot/src/cpu/i486/vm/debug_i486.cpp ... It takes a long time. Please imagine yourself as follows...

One thing to mention is that after JVM compilation, make will talk about some basic Java
The library uses javac as make and jar as packing. This takes a longer time... please wait...

After compilation, the system returns to the prompt and can make install... so happy ~~~

FreeBSD # make install ==> Installing for jdk-1.4.2p7_1 Jdk-1.4.2p7_1 depends on executable: javavm-found ... Skip... => Attempting to fetch from ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/distfiles. Urw-fonts.tar.gz 100% of 1508 kB 8099 Bps 00 m 00 s ... Skip... ==> Registering installation for urwfonts-1.0 ==> Returning to build of jdk-1.4.2p7_1 ... Skip... ==> Registering installation for jdk-1.4.2p7_1 ==> Security Report: This port has installed the following files which may act as network Servers and may therefore pose a remote security risk to the system. /Usr/local/JDK 1.4.2 /Jre/lib/i386/native_threads/libhpi. so /Usr/local/jdk1.4.2/jre/lib/i386/client/libjvm. so /Usr/local/jdk1.4.2/jre/lib/i386/libnio. so /Usr/local/jdk1.4.2/jre/lib/i386/libdt_socket.so /Usr/local/jdk1.4.2/JRE/lib/i386/Server/libjvm. So /Usr/local/jdk1.4.2/JRE/javaws/javawsbin If there are vulnerabilities in these programs there may be a security Risk to the system. FreeBSD makes no guarantee about the security Ports terminated ded in the ports collection. Please type 'make deinstall' To deinstall the port if this is a concern. For more information, and contact details about the security Status of this software, see the following webpage: Http://www.freebsd.org/java/ FreeBSD #

 
The next step is the general, make clean, make distclean, delete unwanted distfiles!
But do not forget to set the JAVA_HOME and CLASSPATH environment variables for Java, and you can see the Java version information:

FreeBSD # cd/usr/local/jdk 1.4.2 /Bin FreeBSD # java-version Java version "1.4.2-p7" Java (TM) 2 Runtime Environment, Standard Edition (build 1.4.2-p7-root_06_oct_2005_21_31) Java HotSpot (TM) Client VM (build 1.4.2-p7-root_06_oct_2005_21_31, mixed mode)