178 Comments

1. Adam / November 9, 2010

   Thanks for publishing this java installation guide.

   Reply
2. Joshua Garcia / December 10, 2010

   Hey good guide. just one suggestion. Oracle puts out an rpm.bin file. if you install that then it will make a folder in /usr/java called jdk-something and another called latest which will point at that one. you should use the rpm and then always upgrade that way. have alternatives point to /usr/bin/latest and youll never have to change it again if you want to use Oracles Java

   Reply
3. Joshua Garcia / December 10, 2010

   Err. edit from previous post it should be /usr/java/latest *

   Reply
4. JR / December 10, 2010

   Hi Joshua,

   I still use just .bin file on this guide, because I can’t get Oracles rpm.bin file working. I just got following error message when trying to install rpm.bin file:

   Do you agree to the above license terms? [yes or no] yes Unpacking... Checksumming... Extracting... UnZipSFX 5.52 of 28 February 2005, by Info-ZIP (http://www.info-zip.org). inflating: jdk-7-ea-linux-i586.rpm Failed to extract the files. Please refer to the Troubleshooting section of the Installation Instructions on the download page for more information.

   Do you get it to work normally?

   Reply
5. roy / February 22, 2011

   Hi JR,

   I am new to linux but I have just installed jdk7 using rpm.(I think).

   Just like you described I also got the “Failed to extract the files” message, but a jdk-7-ea-linux-i586.rpm was left in my dowload directory.
   I used this with rpm and it ran to conclusion.

   When I enter ‘java -version’ it responds with ’1.7.0-ea’. same for javac.

   When I enter “alternatives –config javac” nothing happens.

   Is there any other way I can check if all is installed correctly?

   Thanks
   Roy

   Reply
   • JR / February 24, 2011

     Hi roy,

     Sounds, it appears that your java and javac is the correct version.

     Did you completed alternatives commands?

     Reply
6. Francisco / June 22, 2011

   good tutorial man thx

   Reply
7. NKmhr / July 3, 2011

   Thanks for sharing.

   Reply
8. khourt / July 8, 2011

   Guia super chingona !!

   Thanks !! This Java Guide is great

   Reply
9. Aphelion / August 3, 2011

   Would this break the existing alternatives “slave” system? Normally when you switch the link to java, it also switches the link to a number of other utilities as well as making sure the correct man pages are used. I’m too lazy to type out a version with all of the man pages and so forth, but wouldn’t something like this be more in line with the usual alternatives flow?

   alternatives \
   –install /usr/bin/java java /usr/java/jdk1.7.0/jre/bin/java 17000 \
   –slave /usr/lib/jvm/jre jre /usr/java/jdk1.7.0/jre \
   –slave /usr/lib/jvm-exports/jre jre_exports /usr/java/jdk1.7.0/jre/lib \
   –slave /usr/bin/keytool keytool /usr/java/jdk1.7.0/jre/bin/keytool \
   –slave /usr/bin/orbd orbd /usr/java/jdk1.7.0/jre/bin/orbd \
   –slave /usr/bin/pack200 pack200 /usr/java/jdk1.7.0/jre/bin/pack200 \
   –slave /usr/bin/rmid rmid /usr/java/jdk1.7.0/jre/bin/rmid \
   –slave /usr/bin/rmiregistry rmiregistry /usr/java/jdk1.7.0/jre/bin/rmiregistry \
   –slave /usr/bin/servertool servertool /usr/java/jdk1.7.0/jre/bin/servertool \
   –slave /usr/bin/tnameserv tnameserv /usr/java/jdk1.7.0/jre/bin/tnameserv \
   –slave /usr/bin/unpack200 unpack200 /usr/java/jdk1.7.0/jre/bin/unpack200

   It makes me wonder why the oracle jdk 1.7 RPM doesn’t do this for you during post-install…

   Reply
10. Joe Klemmer / August 6, 2011

    One thing that can be done if you don’t want to install both the jdk and jre is to change the mozilla plugin line for the alternatives –install to
    
## Java Browser (Mozilla) Plugin 32-bit ##
alternatives --install /usr/lib/mozilla/plugins/libjavaplugin.so libjavaplugin.so /usr/java/jdk1.7.0/lib/i386/libnpjp2.so 20000


    Reply
    • JR / August 6, 2011

      Hi Joe,

      I use normally /usr/java/jdk1.7.0/jre/lib/i386/libnpjp2.so and it’s also on this guide. It works nice for me… :)

      Reply
11. Bart / August 23, 2011

    Hi All,

    In the JRE 6 release you had the possibility to download a rpm.bin (for example jre-6u27-linux-i586-rpm.bin) package. This Package seems to have been removed from JRE 7. Anyone any idea?

    Reply
    • JR / August 23, 2011

      Hi Bart,

      I don’t know reason why rpm.bin packages are removed but plain RPM packages also works nicely… :)

      Reply
12. Ahsan / September 10, 2011

    An excellent post…!

    I was afraid that I may waste time in setting up JDK on my newly installed Fedora 15.

    Through this post, I installed it successfully within 15 minutes.

    Reply
13. max / September 21, 2011

    thank you, thank you, thank you

    Reply
14. asker / October 5, 2011

    why do we need the

    ## export JAVA_HOME JDK ##
    export JAVA_HOME=”/usr/java/jdk1.7.0″

    ## export JAVA_HOME JRE ##
    export JAVA_HOME=”/usr/java/jre1.7.0″

    after installation?
    what’s the intention?

    Reply
    • JR / October 5, 2011

      Hi asker,

      By using environment variables you can easily change a configuration setting for one or more applications. Example JAVA_HOME is widely used environment variable on Java programs. So setting the JAVA_HOME environment variable is not mandatory, but I recommend it… :)

      Reply
15. DaVince / October 25, 2011

    I found that Oracle’s Java 7 release wasn’t really working for me. Any way to revert the settings to their defaults (so my system will be using the already-installed OpenJDK version instead)?

    Reply
    • JR / October 25, 2011

      Hi DaVince,

      You can actually use both OpenJDK and Oracle’s Java 7 simultaneously.

      You can run following commands and select OpenJDK instead of Oracle’s Java 7:

      alternatives --config java alternatives --config javaws   ## 32 Bit ## alternatives --config libjavaplugin.so   ## 64-bit ## alternatives --config libjavaplugin.so.x86_64   ## JDK ## alternatives --config javac

      Check more from this guide 6. Swap between OpenJDK and Sun/Oracle Java JDK/JRE 6 and 7 versions

      Then if you want / you have to use Java 7 later then you can switch it back same way or use directly like following:

      /usr/java/jdk1.7.0_01/jre/bin/java -jar some_java_application.jar

      Reply
16. Napo / October 25, 2011

    What happens after an upgrade of either openjdk or sun jdk? Does one have to go through all these again?

    Reply
    • JR / October 25, 2011

      Hi Napo,

      Actually yes, but there is of course workaround for that…you could also use /usr/java/default or /usr/java/latest and then after upgrade it’s work with any other actions following commands should work smoothly.
      JDK

      ## java ## alternatives --install /usr/bin/java java /usr/java/latest/jre/bin/java 20000 ## javaws (32-bit only) ## alternatives --install /usr/bin/javaws javaws /usr/java/latest/jre/bin/javaws 20000   ## Java Browser (Mozilla) Plugin 32-bit ## alternatives --install /usr/lib/mozilla/plugins/libjavaplugin.so libjavaplugin.so /usr/java/latest/jre/lib/i386/libnpjp2.so 20000   ## Java Browser (Mozilla) Plugin 64-bit ## alternatives --install /usr/lib64/mozilla/plugins/libjavaplugin.so libjavaplugin.so.x86_64 /usr/java/latest/jre/lib/amd64/libnpjp2.so 20000   ## Install javac only if you installed JDK (Java Development Kit) package ## alternatives --install /usr/bin/javac javac /usr/java/latest/bin/javac 20000 alternatives --install /usr/bin/jar jar /usr/java/latest/bin/jar 20000

      JRE

      ## java ## alternatives --install /usr/bin/java java /usr/java/latest/bin/java 20000   ## javaws (32-bit only) ## alternatives --install /usr/bin/javaws javaws /usr/java/latest/bin/javaws 20000   ## Java Browser (Mozilla) Plugin 32-bit ## alternatives --install /usr/lib/mozilla/plugins/libjavaplugin.so libjavaplugin.so /usr/java/latest/lib/i386/libnpjp2.so 20000   ## Java Browser (Mozilla) Plugin 64-bit ## alternatives --install /usr/lib64/mozilla/plugins/libjavaplugin.so libjavaplugin.so.x86_64 /usr/java/latest/lib/amd64/libnpjp2.so 20000

      You could easily check where your default and latest point with following command:

      ls -la /usr/java ... lrwxrwxrwx. 1 root root 16 Oct 15 13:59 default -> /usr/java/latest drwxr-xr-x. 3 root root 4096 Oct 25 23:44 jdk1.7.0 drwxr-xr-x. 10 root root 4096 Oct 25 23:44 jdk1.7.0_01 lrwxrwxrwx. 1 root root 21 Oct 25 23:44 latest -> /usr/java/jdk1.7.0_01

      Of course this latest should always point to latest java so if you want to use OpenJDK 6 and Oracle’s JDK/JRE 7 then you should do some manual work anyways. I personally prefer this absolute method (I change between Java versions using alternatives –config command), because I want to be sure what version I’m using, but actually for many users (who just use Java especially JRE) it might be better use latest version always…and this is good point and I will add that also this guide. Thanks! :)

      Reply
17. Jose / November 23, 2011

    Hi and thanks for your guide. I have followed your instructions to the best of my knowledge but I must have made a mistake somewhere I cannot identify. I’ll copy here my config just in case you can help. Thanks again,

    
which java
/usr/bin/java


    
which javaws
/usr/bin/which: no javaws in (/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)


    
update-alternatives --config javaws
error al leer enlace /usr/bin/javaws: No existe el fichero o el directorio


    
However, there is a /usr/bin/javaws.itweb


    
update-alternatives --config libjavaplugin.so.x86_64
Hay 5 programas que proporcionan 'libjavaplugin.so.x86_64'.
Selección Comando
-----------------------------------------------
* 1 /usr/java/default/lib/amd64/libnpjp2.so
2 /usr/lib64/IcedTeaPlugin.so
3 /usr/java/latest/jre/lib/amd64/libnpjp2.so
4 /usr/java/latest/lib/amd64/libnpjp2.so
+ 5 /usr/java/jdk1.7.0_01/jre/lib/amd64/libnpjp2.so
Presione Intro para mantener la selección actual[+], o escriba el número de la selección: 5


    
which javac
/usr/bin/javac


update-alternatives --config javac
Hay 3 programas que proporcionan 'javac'.
Selección Comando
-----------------------------------------------
1 /usr/lib/jvm/java-1.6.0-openjdk.x86_64/bin/javac
* 2 /usr/java/latest/bin/javac
+ 3 /usr/java/jdk1.7.0_01/bin/javac
Presione Intro para mantener la selección actual[+], o escriba el número de la selección: 3


    
update-alternatives --config java
Hay 5 programas que proporcionan 'java'.
Selección Comando
-----------------------------------------------
1 /usr/lib/jvm/jre-1.5.0-gcj/bin/java
2 /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java
* 3 /usr/java/latest/jre/bin/java
4 /usr/java/latest/bin/java
+ 5 /usr/java/jdk1.7.0_01/jre/bin/java
Presione Intro para mantener la selección actual[+], o escriba el número de la selección: 5


    
ls -la /usr/java
total 12
drwxr-xr-x. 3 root root 4096 nov 15 02:17 .
drwxr-xr-x. 14 root root 4096 oct 3 10:56 ..
lrwxrwxrwx. 1 root root 16 nov 15 00:33 default -> /usr/java/latest
drwxr-xr-x. 10 root root 4096 nov 15 00:33 jdk1.7.0_01
lrwxrwxrwx. 1 root root 21 nov 15 00:33 latest -> /usr/java/jdk1.7.0_01


    
echo $JAVA_HOME
/usr/java/jdk1.7.0_01


    
cat /etc/profile.d/sunjava.sh
# export JAVA_HOME=/usr/java/default
# export PATH=$JAVA_HOME/bin:$PATH
## export JAVA_HOME JDK ##
export JAVA_HOME="/usr/java/jdk1.7.0_01"


    
grep -r JAVA_HOME /etc/* | grep JAVA
/etc/init.d/jetty:export JAVA_HOME
/etc/java/java.conf:#JAVA_HOME=$JVM_ROOT/jre
/etc/java/java.conf:#JAVA_HOME=$JVM_ROOT/java
/etc/profile.d/sunjava.sh~:# export JAVA_HOME=/usr/java/default
/etc/profile.d/sunjava.sh~:# export PATH=$JAVA_HOME/bin:$PATH
/etc/profile.d/sunjava.sh~:## export JAVA_HOME JDK ##
/etc/profile.d/sunjava.sh~:export JAVA_HOME="/usr/java/jdk1.7.0_01"
/etc/profile.d/sunjava.sh:# export JAVA_HOME=/usr/java/default
/etc/profile.d/sunjava.sh:# export PATH=$JAVA_HOME/bin:$PATH
/etc/profile.d/sunjava.sh:## export JAVA_HOME JDK ##
/etc/profile.d/sunjava.sh:export JAVA_HOME="/usr/java/jdk1.7.0_01"
/etc/rc0.d/K20jetty:export JAVA_HOME
/etc/rc1.d/K20jetty:export JAVA_HOME
/etc/rc2.d/K20jetty:export JAVA_HOME
/etc/rc3.d/K20jetty:export JAVA_HOME
/etc/rc4.d/K20jetty:export JAVA_HOME
/etc/rc5.d/K20jetty:export JAVA_HOME
/etc/rc6.d/K20jetty:export JAVA_HOME
/etc/rc.d/rc3.d/K20jetty:export JAVA_HOME
/etc/rc.d/rc6.d/K20jetty:export JAVA_HOME
/etc/rc.d/rc2.d/K20jetty:export JAVA_HOME
/etc/rc.d/init.d/jetty:export JAVA_HOME
/etc/rc.d/rc4.d/K20jetty:export JAVA_HOME
/etc/rc.d/rc5.d/K20jetty:export JAVA_HOME
/etc/rc.d/rc1.d/K20jetty:export JAVA_HOME
/etc/rc.d/rc0.d/K20jetty:export JAVA_HOME
/etc/rpm/macros.jpackage:%java_home %(. %{_javadir}-utils/java-functions; set_jvm; echo $JAVA_HOME)
/etc/rpm/macros.jpackage:%ant JAVA_HOME=%{java_home} ant
/etc/sysconfig/hsqldb:JAVA_HOME=${JAVA_HOME:-/usr/lib/jvm/jre}
/etc/sysconfig/hsqldb:JAVA_EXECUTABLE=${JAVA_HOME}/bin/java


    Reply
    • JR / November 23, 2011

      Hi Jose,

      So your problem is javaws?

      Could you post output of following command:

      ls -la /usr/java/jdk1.7.0_01/jre/bin/

      Reply
      • joan a / January 31, 2012

        i also have the same problem. it seems javaws is not working. :(

        Reply
18. inukaze / December 1, 2011

    Hi there , i try to install “Wakfu” and “Play it” , but , i have Fedora 16 64 Bits , with the lastest kernel , and lastest Nvidia Drivers .

    But the Game requiere “openjdk / jre” of 32 Bits , but i need the 64 Bits openjdk / jre , installed too .

    Someone know how i can install both ???

    Thanks

    Reply
    • JR / December 1, 2011

      Hi inukaze,

      So you want to install OpenJDK 32-bit and 64-bit version and not Oracle JRE / JDK?

      Reply
19. gizmo / December 17, 2011

    All this doesn’t work for Fedora 16 and JRE – Java 7u2 :-(

    Reply
    • JR / December 17, 2011

      Hi gizmo,

      I just updated my Java 7 to latest version 7u2 and also updated this guide and yes it works for me.

      Could you tell more specific, what error messages you get? Or why it doesn’t work?

      Reply
20. gizmo / December 17, 2011

    What I do is;

    I download JRE rpm version 7u2
    then:

    sudo -i
    rpm -Uvh /path/to/binary/jre-7u2-linux-i586.rpm
    alternatives –install /usr/bin/java java /usr/java/latest/bin/java 20000
    alternatives –install /usr/bin/javaws javaws /usr/java/latest/bin/javaws 20000
    alternatives –install /usr/lib/mozilla/plugins/libjavaplugin.so libjavaplugin.so /usr/java/latest/lib/i386/libnpjp2.so 20000

    and after:
    java -version

    it says

    java version “1.7.0_02″
    Java(TM) SE Runtime Environment (build 1.7.0_02-b13)
    Java HotSpot(TM) 64-Bit Server VM (build 22.0-b10, mixed mode)

    so OK.

    But after few minutes when trying:
    java -version

    it says Bash: java: command not found

    So I guess there is something wrong with my JAVA :-(
    Before I installed Libreoffice and it installed OpenJDK 1.6.0 and 1.7.0
    but I need Oracle’s one to print my internet invoices

    What am I doing wrong?

    Reply
    • gizmo / December 17, 2011

      Also I uninstalled jre (OpenJDK 1.6.0 and 1.7.0 with whole Libreoffice and Oracle 7u2), but this:

      alternatives –config java

      shows 2 alternatives to choose from:

      *+ 1 /usr/java/latest/jre/bin/java
      2 /usr/java/latest/bin/java

      So some trash still there?

      Reply
      • JR / December 17, 2011

        Thank you for good description. Let’s try to solve this problem… :)

        Could you first post output of following commands:

        ls -la /usr/bin/java   ls -la /etc/alternatives/java   ls -la /usr/java/latest/jre/bin/java   ls -la /usr/java/latest/bin/java   ls -la /usr/java/   env |grep -i -e java -e path

        Reply
        • Gizmo / December 17, 2011

          I reinstalled Fedora 16 (since before it was also fresh install but after Libreoffice and some other software installed).
          And now it’s working.
          Thank you JR for your help and for great tutorial.
          It was definitely my fault.
          I just wish that now after installing Libreoffice it will still work.

          Reply
          • Gizmo / December 17, 2011

            I installed Libreoffice (which installed OpenJDK 1.6.0 and 1.7.0) and java still works (I mean Oracle Java 7u2).
            Once again – thank you.
            I’m sorry for the confusion.

            Reply
            • JR / December 18, 2011

              You are very welcome! Nice to hear that you got it working!

              I have also always OpenJDK installed all my systems and it works nicely with Oracle Java. :)

              And no problem at all!

              Reply
21. Glenn Lee Kian Giap / December 19, 2011

    errata “Select rpm.bin” should be “Select rpm”

    Reply
    • JR / December 19, 2011

      Thanks Glenn! I fixed it, yes it should be just “rpm” :)

      Reply
22. Sreeram / December 27, 2011

    Okay! Great post! Thanks a lot! Managed to get Java up and running. Although, I have one doubt. How do I keep this JDK up to date with future releases from Oracle ? Since they often release updates to their JDKs it is necessary to keep up to date. How do I go about this?

    Reply
    • JR / December 27, 2011

      Hi Sreeram,

      You have to download and install Oracle Java manually, because of Oracle Binary Code License Agreement for Java SE, but it’s easy process if you use this guide “latest” method.

      Reply
23. Ken S / January 1, 2012

    Many thanks. This worked perfectly. Fantastic!

    I appreciate your work.

    Reply
24. TAE / January 2, 2012

    Hi JR,

    Thanks for this very great guide. I followed step by step but at the end when checking the configuration I get:

    Java(TM) Web Start 10.0.0.13-fcs
    [...]

    after executing the javaws command.

    
ls -la /usr/java/jdk1.7.0_02/jre/bin/
total 396
drwxr-xr-x. 2 root root 4096 Jan 1 23:51 .
drwxr-xr-x. 5 root root 4096 Jan 1 23:51 ..
lrwxrwxrwx. 1 root root 8 Jan 1 23:51 ControlPanel -> jcontrol
-rwxr-xr-x. 1 root root 5654 Nov 17 16:47 java
-rwxr-xr-x. 1 root root 16017 Nov 17 16:47 java_vm
-rwxr-xr-x. 1 root root 79096 Nov 17 16:47 javaws
-rwxr-xr-x. 1 root root 6395 Nov 17 16:39 jcontrol
-rwxr-xr-x. 1 root root 5809 Nov 17 16:47 keytool
-rwxr-xr-x. 1 root root 5953 Nov 17 16:47 orbd
-rwxr-xr-x. 1 root root 5829 Nov 17 16:47 pack200
-rwxr-xr-x. 1 root root 5913 Nov 17 16:47 policytool
-rwxr-xr-x. 1 root root 5805 Nov 17 16:47 rmid
-rwxr-xr-x. 1 root root 5809 Nov 17 16:47 rmiregistry
-rwxr-xr-x. 1 root root 5825 Nov 17 16:47 servertool
-rwxr-xr-x. 1 root root 5981 Nov 17 16:47 tnameserv
-rwxr-xr-x. 1 root root 215415 Nov 17 16:47 unpack200


    
env |grep -i -e java -e path
PATH=/usr/lib/qt-3.3/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:
/usr/sbin:/sbin:/home/tae/.local/bin:/home/tae/bin
JAVA_HOME=/usr/java/latest
WINDOWPATH=1


    Reply
    • JR / January 2, 2012

      Hi TAE,

      Actually your output is just ok, it should Java(TM) Web Start 10.0.0.13-fcs. :)

      You could verify it with following command:

      alternatives --config javaws

      Reply
25. reza / January 4, 2012

    hi,
    i have openjdk 1.6.0 and jdk 7. i need jdk 6 on my box, do you know how to do remove jdk 7 from my fedora 16 box? thanks.

    Reply
    • JR / January 4, 2012

      Hi reza,

      So you want to install Oracle Java JDK 6 also? But I don’t understand why you want remove Oracle Java JDK 7? :)

      Reply
26. under2sea / January 5, 2012

    Oh yeah it’s very simple to install java on Linux !!!

    Reply
    • JR / January 5, 2012

      Hi under2sea,

      I agree, very simple setup… :)

      Reply
27. 3D_Kid / January 5, 2012

    Thanks! Great post & nice site for red eyed linux users.

    Reply
28. joan a / January 31, 2012

    when i try to type

    javaws

    the output is no such file or directory.

    what should i do? all else is successful except this one.

    Reply
    • JR / January 31, 2012

      Hi Joan a,

      Did you installed JAVA JRE or JDK and 32-bit or 64-bit?

      Reply
29. Newtype / February 7, 2012

    How do we fix symbolic links?

    For example, i got
    the primary link for libjavaplugin.so must be /usr/lib/mozilla/plugins/libjavaplugin.so

    Reply
    • JR / February 7, 2012

      Hi Newtype,

      Could you post exact command and full error message what you try to run?

      And please post also output of following commands:

      uname -a   lsb_release -a

      Reply
      • Newtype / February 8, 2012

        Thanks Jr, the command was
        alternatives --install /usr/lib64/mozilla/plugins/libjavaplugin.so \ libjavaplugin.so.x86_64 /usr/java/latest/lib/amd64/libnpjp2.so 20000

        If I remove the “/”
        alternatives --install /usr/lib64/mozilla/plugins/libjavaplugin.so libjavaplugin.so.x86_64 /usr/java/latest/lib/amd64/libnpjp2.so 20000
        The libjavaplugin.so will appear as an broken symbolic link and the target it was trying to link becomes “/etc/alternatives/libjavaplugin.so.x86_64″
        which was trying to link
        “/usr/java/latest/jre/amd64/libnpjp2.so”
        which is wrong, as the file it was trying to locate is in fact
        “/usr/java/latest/lib/amd64/libnpjp2.so”
        However, even if the original “/etc/alternatives/libjavaplugin.so.x86_64″ is deleted. The new “/etc/alternatives/libjavaplugin.so.x86_64″ created by the command
        alternatives --install /usr/lib64/mozilla/plugins/libjavaplugin.so libjavaplugin.so.x86_64 /usr/java/latest/lib/amd64/libnpjp2.so 20000
        Will still attempt to link to “”/usr/java/latest/jre/amd64/libnpjp2.so”

        Well, what I did now is do a cp -a lib jre, but I am not sure is this what we are suppose to do.

        Reply
        • Newtype / February 8, 2012

          uname -a gives
          Linux 3.2.3-2.fc16.x86_64 #1 SMP Fri Feb 3 20:08:08 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
          lsb_release-a gives
          
LSB Version: :core-4.0-amd64:core-4.0-noarch
Distributor ID: Fedora
Description: Fedora release 16 (Verne)
Release: 16
Codename: Verne

          I am using the 64 bit version.

          Reply
          • JR / February 8, 2012

            Okay, this looks very messy. The first thing to do is forget all the cp -a jre lib style commands, because they are not really needed! With these you only get a problems.

            So are you installing Oracle Java JRE or JDK?

            Could you please post output of following commands:

            ls -la /usr/lib64/mozilla/plugins/libjavaplugin.so   ls -la /etc/alternatives/libjavaplugin.so.x86_64   ls -la /usr/java/   ls -la /usr/java/latest/lib/amd64/libnpjp2.so   ls -la /usr/java/latest/jre/lib/amd64/libnpjp2.so

            Reply
30. Newtype / February 9, 2012

    The copy -a command is just a compromised solution I can think of to fix the broken symbolic link. Mozilla do recognise the plugin afterwards and passed the java test, but I guess it only worked because java doesnt care about it.
    I only have JRE installed, since I dont really need the stuff in JDK.
    And for list command, here is what I got
    ls -la /usr/lib64/mozilla/plugins/libjavaplugin.so
    /usr/lib64/mozilla/plugins/libjavaplugin.so -> /etc/alternatives/libjavaplugin.so.x86_64
    ls -la /etc/alternatives/libjavaplugin.so.x86_64
    /etc/alternatives/libjavaplugin.so.x86_64 -> /usr/java/latest/jre/amd64/libnpjp2.so
    Obviously, something screwed up here.

    ls -la /usr/java
    total 40572
drwxr-xr-x. 3 root root 4096 Feb 7 18:45 .
drwxr-xr-x. 14 root root 4096 Nov 10 19:55 ..
lrwxrwxrwx. 1 root root 16 Nov 22 20:48 default -> /usr/java/latest
drwxr-xr-x. 8 root root 4096 Feb 8 17:29 jre1.6.0_30
-rw-r--r--. 1 root root 20904187 Oct 3 19:00 jre-6u29-linux-amd64.rpm
-rwxr-xr-x. 1 root root 20627096 Nov 21 18:11 jre-6u29-linux-x64-rpm.bin
lrwxrwxrwx. 1 root root 21 Feb 7 18:07 latest -> /usr/java/jre1.6.0_30

    ls -la /usr/java/latest/lib/amd64/libnpjp2.so
    -rwxr-xr-x. 1 root root 80592 Nov 10 17:49 /usr/java/latest/lib/amd64/libnpjp2.so
    ls -la /usr/java/latest/jre/lib/amd64/libnpjp2.so
    ls: cannot access /usr/java/latest/jre/lib/amd64/libnpjp2.so: No such file or directory
    ls -la /usr/java/latest/jre/amd64/libnpjp2.so
    -rwxr-xr-x. 1 root root 80592 Nov 10 17:49 /usr/java/latest/jre/amd64/libnpjp2.so

    Reply
    • JR / February 9, 2012

      Your problem is that the you have installed Java JRE 6, with Java JRE 7 guide…with Java JRE 6 64-bit right alternatives install command is:

      alternatives --install /usr/lib64/mozilla/plugins/libjavaplugin.so libjavaplugin.so.x86_64 /usr/java/jre1.6.0_30/lib/amd64/libnpjp2.so 20000   ## OR ## alternatives --install /usr/lib64/mozilla/plugins/libjavaplugin.so libjavaplugin.so.x86_64 /usr/java/latest/lib/amd64/libnpjp2.so 20000

      More info from Java 6 install guide.

      Reply
      • Newtype / February 10, 2012

        I am afraid that the problem may not be caused by an incorrect command, because the command in question is exactly the same, word by word.
        I am using the “latest” method and from what I have gathered, the installation steps for Java 1.6 and 1.7 is exactly the same as well.

        Besides, for both 1.6 and 1.7 installation, the command
        
alternatives --install /usr/lib64/mozilla/plugins/libjavaplugin.so libjavaplugin.so.x86_64 /usr/java/latest/lib/amd64/libnpjp2.so 20000

        will generate the corrupted symbolic link libjavaplugin.so.x86_64 in
        “/etc/alternatives/”.

        In fact, I have done a bit research in regarding to this problem.
        The corrupt link can be linked to anywhere. For another instance, the link was incorrectly pointed to “/usr/lin64/mozilla/plugins/libjavaplugin.so” and in my case, it was “/usr/java/latest/jre/amd64/libnpjp2.so”.

        The cause of the problem is really caused by a typo when the symbolic link was first made. Unfortunately, after the link is made, it cannot be changed, even if the .so file is deleted and recreated; or perhaps this only occurs in fedora.

        The only way to “fix” it, is sadly, changing the java path.

        Reply
        • JR / February 10, 2012

          Of course you could change/remove link with alternatives –remove libjavaplugin.so.x86_64 command, like:

          alternatives --remove libjavaplugin.so.x86_64 /usr/java/latest/lib/amd64/libnpjp2.so

          If you remove original .so file then you have broken link(s) yes. So you can fix it simply, first remove wrong link and then create right link. One thing to remember, you should never touch (manually with mv, cp, rm, etc. commands) any files which are installed from RPM packages. Or you have soon a Linux system that can’t longer maintain and update.

          Reply
31. Vijay Bhaskar / March 7, 2012

    Steps provided was just what was needed for RHEL newbie learning Linux in more detail. Thanks much and keep up the great work!

    Reply
32. Dileep / March 19, 2012

    jdk7 installation is removing jdk6, how do i keep both?

    Reply
    • JR / March 20, 2012

      Hi Dileep,

      Try following method to keep both Java JDK 6 and JDK 7, you can of course use same method the other way round, because you have Java JDK 6 installed already.

      Reply
      • Dileep / March 20, 2012

        Thank You.

        Reply
        • JR / March 20, 2012

          You are welcome! :)

          Reply
33. Pranab / March 22, 2012

    Thanks for the instructions. Worked like a charm!!!

    Reply
34. Guilherme / March 28, 2012

    Thanks for this tutorial, I’m new user in Linux and finally found one that worked. :)

    Reply
35. Ben / April 27, 2012

    Thanks for this.

    Reply
36. r7 / May 8, 2012

    Thank You so much it just worked perfectly

    Reply
37. Ivan / June 11, 2012

    Perfect!
    Great tutorial.

    Thanks.

    Reply
38. r0b0ty / June 14, 2012

    Glad I found your guide (I plan to try it soon)… excellent attention to detail!

    Question 1: I plan to install JDK 7u5, so will guide work (assuming I replace ’7u4′ with ’7u5′ in the relevant commands)?

    Question 2: Do I need to perform the steps described in BOTH “Use Java JDK latest version (/usr/java/latest)” *AND* “Use Java JDK absolute version (/usr/java/jdk1.7.0_04)”?

    Question 3: In reference to “Use Java JDK absolute version (/usr/java/jdk1.7.0_04)”, will the “jdk1.7.0_04″ number change if I’m installing JDK 7u5?

    Thanks, JR!

    Reply
    • JR / June 14, 2012

      Hi r0b0ty,

      I just updated this guide so answer for your first and third question found from guide and just select latest or absolute method. I strongly recommend latest method, so then later updates are very much easier… :)

      Reply
      • r0b0ty / June 14, 2012

        It has been going perfectly well… I’m on Step 6. “Swap between OpenJDK and Sun/Oracle Java JDK/JRE 6 and 7 versions” but I don’t see the “/usr/java/jdk1.7.0_05/jre/bin/java” selection… only this:

        “There are 2 programs which provide ‘java’.

        Selection Command
        ———————————————–
        1 /usr/lib/jvm/jre-1.7.0-openjdk/bin/java
        *+ 2 /usr/java/latest/jre/bin/java”

        I installed jdk-7u5-linux-i586.rpm, however (and yes, I know it includes JRE)… Is this a problem?

        I’m sure it has to do with Step 4a, where I chose to use the “latest” method. Does the …/latest/… directory really point to “/usr/java/jdk1.7.0_05/” directory, or something?

        Reply
        • JR / June 14, 2012

          It is exactly correct way to use /usr/java/latest/jre/bin/java and you should not see that /usr/java/jdk1.7.0_05/ directory, when you use latest. :) Latest is just link to always latest Java dirctory.

          You can check your java version, with following command:

          java -version

          Should be:
          java version "1.7.0_05"
...


          Reply
          • r0b0ty / June 15, 2012

            That’s what I suspected. So I can say that your guide worked perfectly for me. Thank you very much for your effort!

            Reply
            • JR / June 15, 2012

              Nice to hear! You are very welcome!

              Reply
39. Daniel / July 3, 2012

    Hi, I need to run a program that need JVM, I folowed your instructios but when I run my program it show me the same error.
    Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
My program is for my theses so I need help for install JVM, please help me.
My program is Apollo: http://apollo.berkeleybop.org/current/index.html

    Reply
    • Daniel / July 3, 2012

      Ah, I used the lastedt version and doesn’t work and then I used the absolute version and doesn’t work, I don’t have javaws and javac, but I suppouse that I don’t need those for nunning my program.

      Reply
40. Anatoly / July 16, 2012

    Hi,

    Thank you for your kind effort, but I’m afraid, your instrutions are misleading already. When I install strictly according to the ORACLE’s instructions:
    ———————–
    .
    .
    .
    Linux

    JDK 7 Installation on Linux Platforms – both 32-bit and 64-bit, including RPM
    JRE 7 Installation on Linux Platforms – both 32-bit and 64-bit, including RPM

    In order to run Java applets within a browser, you must install the JRE plugin manually. Instructions for that process are available here:

    Manual Plugin Installation for Linux
    .
    .
    .
    ———————–
    evrything works fine, no need for different instructions. Apart from that, there seems to be a mistake in your instruction:
    it is
    /usr/java/latest/…
    rather than
    /usr/java/latest/jre/…

    also

    cd /usr/lib64/mozilla/plugins
    ln -s /usr/java/latest/lib/amd64/libnpjp2.so .
    rather than
    ln -s /usr/java/latest/lib/amd64/libnpjp2.so libjavaplugin.so

    Reply
    • JR / July 16, 2012

      Hi Anatoly,

      Thanks for this info, I will recheck this guide soon and fix this guide if there is something wrong… :)

      Did you noticed that the JRE part uses /usr/java/latest/ and JDK part uses /usr/java/latest/jre/?

      Reply
      • JR / July 17, 2012

        Hi again Anatoly,

        This guide works normally for me, and Java plugin works normally with clean installed system on Firefox and Google Chrome using alternatives command.

        And also paths /usr/java/latest/ for JRE and /usr/java/latest/jre/ for JDK works just right?

        Reply
        • Anatoly / July 20, 2012

          Hi JR,

          Thank you for the re-check. You must be right.

          Cheers

          Reply
41. jean / August 22, 2012

    updated version, but my google chrome is still pointing my java needs to be updated, somebody is having the same problem?

    Reply
    • JR / August 22, 2012

      Hi jean,

      Could you post output of following command:

      ## 32-bit Java ## alternatives --config libjavaplugin.so   ## 64-bit Java ## alternatives --config libjavaplugin.so.x86_64

      Did you remember start all browser instances after Java upgrade?

      Reply
      • jean / August 22, 2012

        Yes i rebooted system, after upgrade Java.
        alternatives –config libjavaplugin.so.x86_64
        Há 3 programas que oferecem “libjavaplugin.so.x86_64″.
        Seleção Comando
        ———————————————–
        1 /usr/lib64/IcedTeaPlugin.so
        2 /usr/lib/jvm/jre-1.7.0u04-sun-x64/lib/amd64/libnpjp2.so
        *+ 3 /usr/java/latest/lib/amd64/libnpjp2.so

        Reply
42. jean / August 22, 2012

    Yes i rebooted system, after upgrade Java.

    alternatives –config libjavaplugin.so.x86_64

    Há 3 programas que oferecem “libjavaplugin.so.x86_64″.

    Seleção Comando
    ———————————————–
    1 /usr/lib64/IcedTeaPlugin.so
    2 /usr/lib/jvm/jre-1.7.0u04-sun-x64/lib/amd64/libnpjp2.so
    *+ 3 /usr/java/latest/lib/amd64/libnpjp2.so

    Reply
    • JR / August 23, 2012

      Thanks, could you also post output of following command:

      ls -la /usr/java

      Reply
      • jean / August 23, 2012

        ls -la /usr/java
        total 12
        drwxr-xr-x. 3 root root 4096 Ago 22 23:42 .
        drwxr-xr-x. 14 root root 4096 Ago 10 00:12 ..
        lrwxrwxrwx. 1 root root 16 Ago 22 23:38 default -> /usr/java/latest
        drwxr-xr-x. 6 root root 4096 Ago 22 23:38 jre1.7.0_06
        lrwxrwxrwx. 1 root root 21 Ago 22 23:38 latest -> /usr/java/jre1.7.0_06

        Reply
        • JR / August 23, 2012

          Everything looks good so far.

          Could you tell more specific what kind of error you get on Google Chrome, do get this error just some site(s) or always when you use Google Chrome?

          Which Java plugin you see, if you go to chrome://plugins/ ?

          Reply
          • jean / August 23, 2012

            When I enter the page chrome :/ / plugins shows that you need a security update, but I already have the latest update of java, I still do not understand why asking an update.
            I take a printscreen of the screen.

            http://postimage.org/image/gr3ogu8tx/

            Reply
            • JR / August 23, 2012

              What version of Google Chrome you are using?

              Go to: chrome://version

              Reply
              • jean / August 23, 2012

                Google Chrome 21.0.1180.81 (Versão oficial 151980)
                SO Linux
                WebKit 537.1 (@125733)
                JavaScript V8 3.11.10.18
                Flash 11.3.31.230

                Reply
                • JR / August 24, 2012

                  Hi jean,

                  Your browser and Java plugin looks good.

                  That’s why I searched more information about this problem and I found out that this is Google Chrome bug, check this discussion and bug report.

                  Currently you can only wait next Google Chrome version and hopefully this problem is fixed then.

                  You can try following as a temporary fix to the problem. Start Google Chrome with following parameter and then you should get rid of this message:

                  google-chrome --allow-outdated-plugins

                  Reply
                  • jean / August 24, 2012

                    ok, i will use the parameters while the version is not corrected.
                    Thank you for a search and discover the bug.

                    Reply
                    • JR / August 24, 2012

                      You are welcome!
43. afr / August 31, 2012

    Hi JR,

    i’m new to linux, i don’t know how to instal Java JDK,
    when i follow your instruction number 3, there is some error :

    rpm -Uvh /path/to/binary/jdk-7u7-linux-x64.rpm
    error: open of /path/to/binary/jdk-7u7-linux-x64.rpm failed: No such file or directory

    and then i try to follow the oracle java se documentation installation guide, and there is also have some error :

    the rpm -ivh jdk-7u7-linux-x64.rpm
    Preparing… ########################################### [100%]
    1:jdk ########################################### [100%]
    Unpacking JAR files…
    rt.jar…
    Error: Could not open input file: /usr/java/jdk1.7.0_07/jre/lib/rt.pack
    jsse.jar…
    Error: Could not open input file: /usr/java/jdk1.7.0_07/jre/lib/jsse.pack
    charsets.jar…
    Error: Could not open input file: /usr/java/jdk1.7.0_07/jre/lib/charsets.pack
    tools.jar…
    Error: Could not open input file: /usr/java/jdk1.7.0_07/lib/tools.pack
    localedata.jar…
    Error: Could not open input file: /usr/java/jdk1.7.0_07/jre/lib/ext/localedata.pack

    please help me to resolved this error. thank you

    Reply
    • JR / August 31, 2012

      Hi afr,

      On my guide /path/to/binary/ means path (directory) where you downloaded rpm package. Real world path (dir) could be something like /home/afr/Downloads, if your username is afr.

      Did you run this rpm command as root user?

      Reply
      • afr / August 31, 2012

        Thank you very much JR, your guide worked for me.

        Reply
        • JR / August 31, 2012

          You are welcome. Excellent to hear that you got it working!

          And welcome to Linux world, if you have some other Linux questions, feel free to ask :)

          Reply
44. RFederer / September 1, 2012

    when I test on http://www.isjavaexploitable.com/ the website links to

    https://www.java.com/en/download/help/linux_x64rpm_install.xml.

    You link to
    http://www.oracle.com/technetwork/java/javase/downloads/jdk7u7-downloads-1836413.html

    what’s the difference between those two?

    TIA

    Reply
    • JR / September 1, 2012

      Hi RFederer,

      java.com site is aimed primarily to ordinary Java users who just want/need Java JRE (Java Runtime Environment) version, like browser plug-in and the ability to run Java applications. And oracle.com site is aimed primarily Java developers who develop Java programs, compile Java code and of course run Java programs. I use Oracle site here, because you can download both versions JDK (Java Development Kit) and JRE (Java Runtime Environment) from there.

      Btw. Java is Oracle product and java.com is Oracle’s site, if you look just JRE version then you can use of course java.com.

      If you download JRE package from java.com and oracle.com and compare md5sum’s, you see that those are exactly same, because it’s just same file. :)

      ## 32-bit JRE from java.com ## 9c45f8adf9f235105c74347e0d6b2b2e jre-7u7-linux-i586.rpm   ## 32-bit JRE from orcle.com ## 9c45f8adf9f235105c74347e0d6b2b2e jre-7u7-linux-i586.rpm

      Btw. I link to http://www.oracle.com/technetwork/java/javase/downloads/index.html not directly to JDK download page (http://www.oracle.com/technetwork/java/javase/downloads/jdk7u7-downloads-1836413.html. :)

      Reply
45. Sigg3 / September 4, 2012

    Is the x86_64 rpm package of the latest java corrupt? I can’t extract it..

    Reply
    • JR / September 5, 2012

      Hi Sigg3,

      What error messages you get when you try extract it? Did you tried extract JDK or JRE?

      Reply
      • Sigg3 / September 7, 2012

        The JRE. I get this:
        # rpm -Uvh "jre-7u7-linux-x64(2).rpm"
Preparing... ########################################### [100%]
1:jre ########################################### [100%]
Unpacking JAR files...
rt.jar...
Error: Could not open input file: /usr/java/jre1.7.0_07/lib/rt.pack
jsse.jar...
Error: Could not open input file: /usr/java/jre1.7.0_07/lib/jsse.pack
charsets.jar...
Error: Could not open input file: /usr/java/jre1.7.0_07/lib/charsets.pack
localedata.jar...
Error: Could not open input file: /usr/java/jre1.7.0_07/lib/ext/localedata.pack

        Reply
        • JR / September 7, 2012

          Hi Sigg3,

          I see what you mean, actually you can ignore those .pack file errors, all jar packages are unpacked successfully (without errors). .pack used by Java Web Start clients to retrieve and unpack JAR files for Java programs. So these errors doesn’t affect the JRE / JDK functionality when you install it using RPM package.

          Reply
          • Sigg3 / September 7, 2012

            You are right, I am now running the latest jre from oracle! Thanks!

            Reply
46. Simo / September 25, 2012

    Why the ’20000′ parameter is needed in the alternate command? e.g. alternatives --install /usr/bin/java java /usr/java/latest/jre/bin/java 20000

    Is it better to use the latest version or the absolute one when creating the symlinks?

    Reply
    • JR / September 25, 2012

      Hi Simo,

      20000 parameter is priority and it’s mandatory.

      usage: alternatives --install <link> <name> <path> <priority> [--initscript <service>] [--slave <link> <name> <path>]* alternatives --remove <name> <path> alternatives --auto <name> alternatives --config <name> alternatives --display <name> alternatives --set <name> <path>   ...   Each alternative has a priority associated with it. When a link group is in automatic mode, the alternatives pointed to by members of the group will be those which have the highest priority.

      Latest version is better, if you don’t have any particular reason to run just exact version of Java.

      Reply
47. Ankur Sinha / October 17, 2012

    I am getting this error in the second step!

    
error: open of /path/to/binary/jdk-7u7-linux-x64.rpm failed: No such file or directory


    Why am I having problems installing everything on Fedora? :(

    Reply
    • JR / October 17, 2012

      This is just example path, you have to use right path, where you downloaded jdk-7u7-linux-x64.rpm file. Normally it’s under your your user Downloads directory if you do not changed download location.

      Reply
48. Nirjhor / October 18, 2012

    How can I remove openjdk after that? Issuing “yum remove openjdk” wants to remove openjdk with tons of other useful softwares

    Reply
    • JR / October 19, 2012

      Hi Nirjhor,

      Do you need free disk space or why you want to remove OpenJDK?

      Reply
49. Gizmo / November 7, 2012

    Could you please give me some tip – why do I get that errors?

    Unpacking JAR files…
    rt.jar…
    Error: Could not open input file: /usr/java/jre1.7.0_09/lib/rt.pack
    jsse.jar…
    Error: Could not open input file: /usr/java/jre1.7.0_09/lib/jsse.pack
    charsets.jar…
    Error: Could not open input file: /usr/java/jre1.7.0_09/lib/charsets.pack
    localedata.jar…
    Error: Could not open input file: /usr/java/jre1.7.0_09/lib/ext/localedata.pack
    plugin.jar…
    Error: Could not open input file: /usr/java/jre1.7.0_09/lib/plugin.pack
    javaws.jar…
    Error: Could not open input file: /usr/java/jre1.7.0_09/lib/javaws.pack
    deploy.jar…
    Error: Could not open input file: /usr/java/jre1.7.0_09/lib/deploy.pack

    Reply
    • JR / November 7, 2012

      Hi Gizmo,

      you can ignore those .pack file errors, all jar packages are unpacked successfully (without errors). .pack used by Java Web Start clients to retrieve and unpack JAR files for Java programs. So these errors doesn’t affect the JRE / JDK functionality when you install it using RPM package.

      Reply
      • Gizmo / November 7, 2012

        Thank you.

        Reply
50. crossfire / December 1, 2012

    Hi,

    Javaws not found on my system:

    # javaws
    bash: javaws: command not found…

    Here my outputs from the ls commands:

    #ls -la /usr/bin/java
    lrwxrwxrwx. 1 root root 22 Nov 28 20:53 /usr/bin/java -> /etc/alternatives/java

    #ls -la /etc/alternatives/java
    lrwxrwxrwx. 1 root root 34 Nov 28 20:53 /etc/alternatives/java -> /usr/java/jdk1.7.0_09/jre/bin/java

    # ls -la /usr/java/latest/jre/bin/java
    -rwxr-xr-x. 1 root root 7750 Set 25 00:43 /usr/java/latest/jre/bin/java

    #ls -la /usr/java/latest/bin/java
    -rwxr-xr-x. 1 root root 7750 Set 25 00:43 /usr/java/latest/bin/java

    #ls -la /usr/java/
    total 16
    drwxr-xr-x. 4 root root 4096 Nov 28 21:12 .
    drwxr-xr-x. 14 root root 4096 Set 25 00:39 ..
    lrwxrwxrwx. 1 root root 16 Nov 28 19:49 default -> /usr/java/latest
    drwxr-xr-x. 10 root root 4096 Nov 28 19:49 jdk1.7.0_09
    drwxr-xr-x. 6 root root 4096 Nov 28 21:12 jre1.7.0_09
    lrwxrwxrwx. 1 root root 21 Nov 28 19:49 latest -> /usr/java/jdk1.7.0_09

    # env |grep -i -e java -e path
    PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
    PWD=/usr/java/jdk1.7.0_09/jre/bin
    JAVA_HOME=/usr/java/jre1.7.0._09

    Tks in advance

    Reply
    • JR / December 3, 2012

      Hi crossfire,

      Run following as root:

      updatedb

      Then post output of following command:

      locate javaws

      Reply
      • P073|\|714L_7|-|R347 / January 12, 2013

        [root@P073|\|714L_7|-|R347 /]# locate javaws
        /home/user/.kde/share/apps/RecentDocuments/javaws.itweb.desktop
        /home/user/.local/share/applications/javaws.itweb.desktop
        /usr/bin/javaws
        /usr/bin/javaws.itweb
        /usr/java/jdk1.7.0_10/bin/javaws
        /usr/java/jdk1.7.0_10/jre/bin/javaws
        /usr/java/jdk1.7.0_10/jre/lib/javaws.jar
        /usr/java/jdk1.7.0_10/jre/lib/desktop/applications/sun-javaws.desktop
        /usr/java/jdk1.7.0_10/jre/lib/desktop/icons/HighContrast/16×16/apps/sun-javaws.png
        /usr/java/jdk1.7.0_10/jre/lib/desktop/icons/HighContrast/48×48/apps/sun-javaws.png
        /usr/java/jdk1.7.0_10/jre/lib/desktop/icons/HighContrastInverse/16×16/apps/sun-javaws.png
        /usr/java/jdk1.7.0_10/jre/lib/desktop/icons/HighContrastInverse/48×48/apps/sun-javaws.png
        /usr/java/jdk1.7.0_10/jre/lib/desktop/icons/LowContrast/16×16/apps/sun-javaws.png
        /usr/java/jdk1.7.0_10/jre/lib/desktop/icons/LowContrast/48×48/apps/sun-javaws.png
        /usr/java/jdk1.7.0_10/jre/lib/desktop/icons/hicolor/16×16/apps/sun-javaws.png
        /usr/java/jdk1.7.0_10/jre/lib/desktop/icons/hicolor/48×48/apps/sun-javaws.png
        /usr/java/jdk1.7.0_10/jre/lib/security/javaws.policy
        /usr/java/jdk1.7.0_10/man/ja_JP.UTF-8/man1/javaws.1
        /usr/java/jdk1.7.0_10/man/man1/javaws.1
        /usr/java/jre1.7.0_10/bin/javaws
        /usr/java/jre1.7.0_10/lib/javaws.jar
        /usr/java/jre1.7.0_10/lib/desktop/applications/sun-javaws.desktop
        /usr/java/jre1.7.0_10/lib/desktop/icons/HighContrast/16×16/apps/sun-javaws.png
        /usr/java/jre1.7.0_10/lib/desktop/icons/HighContrast/48×48/apps/sun-javaws.png
        /usr/java/jre1.7.0_10/lib/desktop/icons/HighContrastInverse/16×16/apps/sun-javaws.png
        /usr/java/jre1.7.0_10/lib/desktop/icons/HighContrastInverse/48×48/apps/sun-javaws.png
        /usr/java/jre1.7.0_10/lib/desktop/icons/LowContrast/16×16/apps/sun-javaws.png
        /usr/java/jre1.7.0_10/lib/desktop/icons/LowContrast/48×48/apps/sun-javaws.png
        /usr/java/jre1.7.0_10/lib/desktop/icons/hicolor/16×16/apps/sun-javaws.png
        /usr/java/jre1.7.0_10/lib/desktop/icons/hicolor/48×48/apps/sun-javaws.png
        /usr/java/jre1.7.0_10/lib/security/javaws.policy
        /usr/java/jre1.7.0_10/man/ja_JP.UTF-8/man1/javaws.1
        /usr/java/jre1.7.0_10/man/man1/javaws.1
        /usr/share/applications/javaws.desktop
        /usr/share/bash-completion/completions/javaws
        /usr/share/man/man1/javaws-itweb.1.gz
        /usr/share/pixmaps/javaws.png
        /var/lib/alternatives/javaws

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