How to properly set up Sun's JDK? [duplicate]

Question

Possible Duplicate:
How do I install Oracle's JDK 6?

I'm trying to manually install the Sun JDK package (I have my reasons, don't bother asking why). I've successfully extracted the .bin file into /usr/lib/jvm/jdk1.6.0_23, but the problem is the PATH variable.

I added this line to the /etc/environment file: JAVA_HOME="/usr/lib/jvm/jdk1.6.0_23" and added JAVA_HOME/bin to the PATH variable, BUT the OS still doesn't recognise the command java, says it's not installed and offers me gcj and openjdk.

There was another way by using java-package and converting the .bin to .deb installer, but unfortunately that package is not available on/for maverick, so I can't do it that way.

How can I make the PATH variable work and is there anything else required apart from the environment variables to make it all work?
When I try to use the update-java-alternatives -l command, it says the following:
awk: cannot open /usr/lib/jvm/*.jinfo (No such file or directory)
jdk1.6.0_23 /usr/lib/jvm/jdk1.6.0_23
What should be the name of the file and the contents of it?

Answer 1

I added this line to the /etc/environment file: JAVA_HOME="/usr/lib/jvm/jdk1.6.0_23" and added JAVA_HOME/bin to the PATH variable, BUT the OS still doesn't recognise the command java, says it's not installed and offers me gcj and openjdk.

Did you check it?

echo $JAVA_HOME 
echo $PATH

If you don't need it: Deinstall openjdk and gcj in synaptic or with apt-get.

apt-get remove gcj 
apt-get remove openjdk

I would ban java from alternatives then, and do mostly as BillThor suggested, why I gave him an upvote.

which javac
which java

should point to where you installed java, and where it is found in the PATH.

Answer 2

The .jdk1.6.0_23.jinfo file should be a list of the supplied programs and their paths. There is a descriptive header followed by a blank line. Then a list of the programs in a three field format: entry type (jre/jkd/plugin); program name; and path. You should have some jinfo files you can use to see what the contents should look like. This is likely used by the alternatives mechanism to determine which links to create. The head of my Sun package is.

name=java-6-sun-1.6.0.22
alias=java-6-sun
priority=63
section=non-free

jre ControlPanel /usr/lib/jvm/java-6-sun/jre/bin/ControlPanel
jre java /usr/lib/jvm/java-6-sun/jre/bin/java
jre java_vm /usr/lib/jvm/java-6-sun/jre/bin/java_vm

If you want to override the default Java commands without using the alternatives mechanism put your Java path ahead of /usr/bin in your path.

When doing a manual install, I install Java in /opt. for your install I would have installed in /opt/jdk1.6.0_23. Then I put the path $JAVA_HOME/bin at the start of my PATH variable.

EDIT: This is the whole Sun file. Note .java-6-sun.jinfo is a symbolic link to .java-6-sun-1.6.0.22.jinfo.

name=java-6-sun-1.6.0.22
alias=java-6-sun
priority=63
section=non-free

jre ControlPanel /usr/lib/jvm/java-6-sun/jre/bin/ControlPanel
jre java /usr/lib/jvm/java-6-sun/jre/bin/java
jre java_vm /usr/lib/jvm/java-6-sun/jre/bin/java_vm
jre javaws /usr/lib/jvm/java-6-sun/jre/bin/javaws
jre jcontrol /usr/lib/jvm/java-6-sun/jre/bin/jcontrol
jre keytool /usr/lib/jvm/java-6-sun/jre/bin/keytool
jre pack200 /usr/lib/jvm/java-6-sun/jre/bin/pack200
jre policytool /usr/lib/jvm/java-6-sun/jre/bin/policytool
jre rmid /usr/lib/jvm/java-6-sun/jre/bin/rmid
jre rmiregistry /usr/lib/jvm/java-6-sun/jre/bin/rmiregistry
jre unpack200 /usr/lib/jvm/java-6-sun/jre/bin/unpack200
jre orbd /usr/lib/jvm/java-6-sun/jre/bin/orbd
jre servertool /usr/lib/jvm/java-6-sun/jre/bin/servertool
jre tnameserv /usr/lib/jvm/java-6-sun/jre/bin/tnameserv
jre jexec /usr/lib/jvm/java-6-sun/jre/lib/jexec
jdk HtmlConverter /usr/lib/jvm/java-6-sun/bin/HtmlConverter
jdk appletviewer /usr/lib/jvm/java-6-sun/bin/appletviewer
jdk apt /usr/lib/jvm/java-6-sun/bin/apt
jdk extcheck /usr/lib/jvm/java-6-sun/bin/extcheck
jdk idlj /usr/lib/jvm/java-6-sun/bin/idlj
jdk jar /usr/lib/jvm/java-6-sun/bin/jar
jdk jarsigner /usr/lib/jvm/java-6-sun/bin/jarsigner
jdk javac /usr/lib/jvm/java-6-sun/bin/javac
jdk javadoc /usr/lib/jvm/java-6-sun/bin/javadoc
jdk javah /usr/lib/jvm/java-6-sun/bin/javah
jdk javap /usr/lib/jvm/java-6-sun/bin/javap
jdk jconsole /usr/lib/jvm/java-6-sun/bin/jconsole
jdk jdb /usr/lib/jvm/java-6-sun/bin/jdb
jdk jhat /usr/lib/jvm/java-6-sun/bin/jhat
jdk jinfo /usr/lib/jvm/java-6-sun/bin/jinfo
jdk jmap /usr/lib/jvm/java-6-sun/bin/jmap
jdk jps /usr/lib/jvm/java-6-sun/bin/jps
jdk jrunscript /usr/lib/jvm/java-6-sun/bin/jrunscript
jdk jsadebugd /usr/lib/jvm/java-6-sun/bin/jsadebugd
jdk jstack /usr/lib/jvm/java-6-sun/bin/jstack
jdk jstat /usr/lib/jvm/java-6-sun/bin/jstat
jdk jstatd /usr/lib/jvm/java-6-sun/bin/jstatd
jdk native2ascii /usr/lib/jvm/java-6-sun/bin/native2ascii
jdk rmic /usr/lib/jvm/java-6-sun/bin/rmic
jdk schemagen /usr/lib/jvm/java-6-sun/bin/schemagen
jdk serialver /usr/lib/jvm/java-6-sun/bin/serialver
jdk wsgen /usr/lib/jvm/java-6-sun/bin/wsgen
jdk wsimport /usr/lib/jvm/java-6-sun/bin/wsimport
jdk xjc /usr/lib/jvm/java-6-sun/bin/xjc
plugin xulrunner-1.9-javaplugin.so /usr/lib/jvm/java-6-sun/jre/lib/amd64/libnpjp2.so
plugin mozilla-javaplugin.so /usr/lib/jvm/java-6-sun/jre/lib/amd64/libnpjp2.so

Answer 3

First: remove openjdk and icedtea plugin.

sudo apt-get remove openjdk* icedtea*

Second: copy the .bin jdk file to /opt or /usr/java and extract it.

sudo cp jdk_1.16.0.bin /usr/java

Third: put a link of the java file to /usr/bin/

ln -s /usr/java/jdk_1.6.0/bin/java /usr/bin/java
ln -s /usr/java/jdk_1.6.0/bin/javac /usr/bin/javac

update the alternatives using update-alternatives

Create a symbolic link to the Java Plugin in the Firefox plugins directory.

Create a symbolic link to the Java Plugin libnpjp2.so file in the Firefox plugins directory:

   cd  

<Firefox>/plugins


 ln -s  

<JRE>/lib/i386/libnpjp2.so .

Hope this helps.