Linux mandrake and java

I am new to linux, I have downloaded java and tried to get it to work, i have followed the installation instructions the best i can, but i cannot get java to work, i have downloaded nestscape 7.1 and got it installed and working fine, i really need help with java, it is driving me crazy,

I have instructions here < http://members.shaw.ca/trollking >

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Linux, Report and Java

Hello,
I plan to write a Java application on Linux platform. I need to know how to create/print report in Java on Linux. If you have any idea on third party tools,etc.. please suggest here too.
Thank you very much.
Regards,
Chee Yoong

You can try JFreeReport:
http://www.object-refinery.com/jfreereport/index.html
It is free under the terms of the GNU LGPL.
Regards,
Dave Gilbert
www.object-refinery.com

32-bit flash and java plugins freeze firefox and gnome on 64-bit linux

I have installed FC13 64-bit and am running 32-bit firefox 3.6.8 so that I can run flash plugin.
When I start 32-bit firefox 3.6.8 and go to site with flash or java applet, firefox locks up my gnome desktop necessitating a reboot of my computer.
Firefox 3.6.8 32-bit
Flash 10.1r82
Java jdk 1.6.0_15 32-bit
I have used a similar configuration on 32-bit FC13 with 32-bit Firefox 3.6.8 and everything works fine. No lockups.

Hi!
I finally solved this problem. The 32-bit libflashplugin required a 32-bit libcurl library that is not installed by default on 64-bit linux systems (at least not on Fedora). Once I installed 32-bit libcurl libs, flash and java plugins starting magically working.
In my opinion, 64-bit Fedora has done a poor job with 32-bit compatibility viz a viz 32-bit libs. I will submit an improvement ticket to Fedora folks about installing more 32-bit libs on 64-bit distros.
Bobby

Linux and Java are 64 bit. The native library is 32 bit. Any workaround?

Folks,
I am trying to run some java cipher/decipher programs that rely on native code (code which connects through the network to an HSM box).
The issue is that theboth Linux kernel and JVM are 64 bit. But the native library seems to be 32 bit. I get the following message when trying to run the sample:
Exception in thread "main" java.lang.UnsatisfiedLinkError: jcryptoki (/opt/Eracom/lib/libjcryptoki.so: wrong ELF class: ELFCLASS32)
at java.lang.ClassLoader.loadLibraryWithPath(ClassLoader.java:981)
at java.lang.ClassLoader.loadLibraryWithClassLoader(ClassLoader.java:950)
at java.lang.System.loadLibrary(System.java:453)
at jprov.cryptoki.Cryptoki.<clinit>(Cryptoki.java:38)
at java.lang.J9VMInternals.initializeImpl(Native Method)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:194)
at au.com.eracom.crypto.provider.ERACOMProvider.<clinit>(ERACOMProvider.java:329)
at java.lang.J9VMInternals.initializeImpl(Native Method)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:194)
at SHA512Generator.main(SHA512Generator.java:10)Is there any workaround or should I contact my HSM vendor and ask for a 64 bit version of this native library?

Is there any workaround or should I contact my HSM vendor and ask for a 64 bit version of this native library?That would certainly be the best step so it should certainly be the first one.

Oracle Linux and Java 7u10

Hi all,
I installed Oracle Linux Server 6.3 selecting "software Development System" (java 1.6.0 comes with it).
but I need to use Java 1.7
So I downloaded jdk-7u10-linux-x64.rpm
when I try to install it, I get the following error.
Unpacking JAR files...
 rt.jar...
Error: Could not open input file: /usr/java/jre1.7.0_10/lib/rt.pack
 jsse.jar...
Error: Could not open input file: /usr/java/jre1.7.0_10/lib/jsse.pack
 charsets.jar...
Error: Could not open input file: /usr/java/jre1.7.0_10/lib/charsets.pack
 localedata.jar...
Error: Could not open input file: /usr/java/jre1.7.0_10/lib/ext/localedata.pack
I can't uninstall java 1.6 because other rpm uses it.
Can someone tell me what the "proper" way to install Oracle Linux and Java 1.7 should be?
OR is there a Oracle Linux Server 6.4 coming out soon with Java 1.7 as its default package set ;-)
thanks in advance,
c.w.

You can ignore the errors. The files named in the error lines do not exist in the rpm package, but are there as .jar files
The following works under Oracle Linux 6.3 x86_64 (and probably other versions).
1. Open the following URL in a web browser on your PC:
<pre>
http://www.oracle.com/technetwork/java/javase/downloads/index.html
</pre>
2. Click the JDK download button, accept the license agreement and download the JDE rpm package.
3. Copy the following file to your Oracle Linux server (SFTP):
<pre>
jdk-7u10-linux-x64.rpm
</pre>
4. Login as root and use the YUM utility to install the RPM package.
<pre>
# yum install ./jdk-7u10-linux-x64.rpm
</pre>
5. Register the new installed java version, then change your default Java:
<pre>
# alternatives --install /usr/bin/java java /usr/java/jdk1.7.0_10/bin/java 2
# alternatives --config java
</pre>
Display your default Java version:
<pre>
# java -version
java version "1.7.0_10"
Java(TM) SE Runtime Environment (build 1.7.0_10-b18)
Java HotSpot(TM) 64-Bit Server VM (build 23.6-b04, mixed mode)
</pre>

Oracle 8.1.6 jre problem on Linux Mandrake 7.2

I tried to install Oracle 8.1.6 on a Linux Mandrake 7.2 distribution using bash (sh is a link to bash) as shell and glibc 2.1.xx (this is the last Mandrake distribution)
runInstaller script died complaining about command not found. Running the runInstaller bin in install/linux folder complains about not finding jre 1.1.8. I found jre in the stage subfolder and tried to run it manually but i fails (maybe java classPath). I tried even installing jre 1.2.2. the same failure.
I tried also with ksc & csh: nothing.
Any idea??
Thank you.

You need unset JAVA_HOME, for example
$ JAVA_HOME=''; export JAVA_HOME
<BLOCKQUOTE>quote:<HR>Originally posted by David Wang ([email protected]):
The machine was running 8.1.5 on RedHat 6.1 (Sure, the installation was painful at that time, I downloaded jre1.6.5 & linux_81501patch_ee.tgz to make it works).
The problem now, is upgrading 8.1.5 to 8.1.6. Since so many people told migration is painful, so I decided to export database, remove 8.1.5, install 8.1.6 and import database.
After remove all the oracle files (I believe), I ran "runInstaller", after select "Custom" and click "Next". It immidiate shows following error:
rror in loading component installation...
Exception java.lang.NullPointerException: Occurred..
java.lang.NullPointerException:
at oracle.sysman.oii.oiio.oiiod.OiiodDepEngine.checkPreReq(OiiodDepEngine.java.2185)
at oracle.sysman.oii.oiio.oiiod.OiiodDepEngine.applySelection(OiiodDepEngine.java.1504)
at oracle.sysman.oii.oiio.oiiod.OiiodDepEngine.depModeApply(OiiodDepEngine.java.1264)
at oracle.sysman.oii.oiif.oiifw.OiifwPostModesWCCE.doOperation(OiifwpostDepModesWCCE.java:327)
at oracle.sysman.oii.oiif.oiifb.OiifbCondIterator.iterate(OiifbCondIterator.java:140)
at oracle.sysman.oii.oiic.OiicDepWizEngine.doOperation(OiioDepWizEngine.java.339)
at oracle.sysman.oii.oiif.oiifb.OiifbCondIteration(OiifbCondIterator.java.140)
at oracle.sysman.oii.oiic.OiicPullSession.doOperation(OiicPullSession.java:510)
at oracle.sysman.oii.oiic.OiicSessionWrapper.doOperation(OiicSessionWraper.java:110)
at oracle.sysman.oii.oiif.Oiifb.OiifbLinearIterator.iterate(OiifbLinearIterator.java:116)
at oracle.sysman.oii.oiic.OiicInstaller.run(OiicInstaller.java:306)
at oracle.sysman.oii.oiic.OiicInstaller.main(OiicInstaller.java:467)
and installation stop..
Do you have any idea?? This is production system, HELP!!!!!
<HR></BLOCKQUOTE>
null

How to install oracle 9i on linux mandrake 8???????????

Hi,
This is my configuration : Linux Mandrake 8.0 & Oracle 9i.
My problem occurs when i run "./runInstaller". Nothing happens, no error.
I have 3 directories Disk1, Disk2 & Disk3 in /TEMP/ (just my example).
I created " groupadd dba " ... and a user oracle. No problem!!
I saw the doc on "www.puschitz.com/InstallingOracle9i.html" but my problem is always here.
I didn't install the JDK.....is it ok???
I need download the JDK????
Which version???
I don't know.
Thanx to help me!
Have a good day.
Vincent

Joseph
I am installing 9i r2 on Mandrake 8.1 and have followed your instruction (as best I could) but I am having installation problems.
1. The fonts for JAVA are not being read correctly, but the install does begin. I am not installing from the console but using VNC to get to my little server.
2. Everything goes fine until I get the error "can't write to file ...jtc.h". I have tried to change permission ( chown 777) on file with no luck.
Exception String: Error in writing to file /data/u01/app/oracle/product/9.2.0/javavm/jahome/jtc.h
3. After that error, I then continue to get error throughout the install, until I just cancel
4. Do I have to make the set_shmmax change...I previously had 8.1.7 installed and had made a kernal memory change?
5. I did not change the "binutils"
Thanks for your help
Travis
OCP "Wanna Be"

Oracle9i installtion on linux mandrake 10.0

Hi,
I have a problem with installing Oracle 9.2.0 on Linux Mandrake 10.0
Installation process holds on that moment:
-------InstallActions2004-08-25_05-51-23PM.log-------------------
Calling action unixActions2.2.0.6.0 createLink
source = /home/oracle/jre/1.1.8/bin/.java_wrapper
destination = /home/oracle/jre/1.1.8/bin/jre
overwriteExistingLink = true
Warning :*** Alert: Do you really want to exit? ***
I think there is a trouble in unixActions java class.
Please help me.
Thanks.

Basically, the Oracle installation is done and it tries to start netmgr etc.
Please add the following environment variable and it should work.
export LD_ASSUME_KERNEL=2.4.1

Eclipse 3.4 and Java 6 compatibility

Hi All,
I have a tomcat plugin inside Eclipse 3.4.2. Recently I upgraded from Java 5 to Java 6. When I try to start Tomcat from Eclipse,I get the following error:
Error occurred during initialization of VM
java.lang.UnsatisfiedLinkError: java.lang.Float.floatToIntBits(F)I
 at java.lang.Float.floatToIntBits(Native Method)
 at java.lang.Math.<clinit>(Math.java:801)
 at sun.net.www.ParseUtil.lowMask(ParseUtil.java:512)
 at sun.net.www.ParseUtil.<clinit>(ParseUtil.java:559)
 at sun.misc.Launcher.getFileURL(Launcher.java:388)
 at sun.misc.Launcher$ExtClassLoader.getExtURLs(Launcher.java:165)
 at sun.misc.Launcher$ExtClassLoader.<init>(Launcher.java:137)
 at sun.misc.Launcher$ExtClassLoader$1.run(Launcher.java:121)
 at java.security.AccessController.doPrivileged(Native Method)
 at sun.misc.Launcher$ExtClassLoader.getExtClassLoader(Launcher.java:118)
 at sun.misc.Launcher.<init>(Launcher.java:51)
 at sun.misc.Launcher.<clinit>(Launcher.java:39)
 at java.lang.ClassLoader.initSystemClassLoader(ClassLoader.java:1304)
 at java.lang.ClassLoader.getSystemClassLoader(ClassLoader.java:1286)
Kindly suggest what needs to be done? If I am posting it in a wrong forum please suggest me the right one too.
I would like to know if Eclipse 3.4 and Java 6 are compatible or not.
Thanks in advance.

ShubhaPradeep wrote:
I have a tomcat plugin inside Eclipse 3.4.2. Recently I upgraded from Java 5 to Java 6. When I try to start Tomcat from Eclipse,I get
Error occurred during initialization of VM
java.lang.UnsatisfiedLinkError: java.lang.Float.floatToIntBits(F)IAre we talking 64-bit Linux?
I had issues launching eclipse on CentOS 5 64-bit and Sun JDK 1.6,
resolved by launching eclipse with the -vm option specifying Sun JDK 1.5 java.
[https://www.centos.org/modules/newbb/viewtopic.php?post_id=95784&topic_id=11661]

Java plugin doesn't work, even though it's installed correctly and java programs work.

As stated. I have a link in ~/.mozilla/plugin that points to test/jre/plugin/i386/ns7/libjavaplugin_oji.so, which is the java 6 update 21 runtime environment.
Java doesn't show in about:plugins, and java applets don't start (firefox suggests to install missing plugins).
Java programs using the jre outside the browser work.
This is on Linux 32-bits, Slackware 13.0, kernel 2.6.34.

<blockquote>As stated. I have a link in ~/.mozilla/plugin that points to test/jre/plugin/i386/ns7/libjavaplugin_oji.so, which is the java 6 update 21 runtime environment.
</blockquote>
Where did you read that? 
See http://kb.mozillazine.org/Java 
In Firefox 3.6 and later versions you need the Next-Generation Java™ Plug-In present in Java 6 U10 and later (Linux: libnpjp2.so; Windows: npjp2.dll).
http://java.com/en/download/faq/firefox_newplugin.xml
http://java.sun.com/javase/6/webnotes/install/jre/manual-plugin-install-linux.html
<pre><nowiki>ln -s /usr/local/java/jre1.6.0_20/lib/i386/libnpjp2.so libnpjp2.so
ln -s /usr/lib/jvm/jre/lib/i386/libnpjp2.so /usr/lib/mozilla/plugins/libnpjp2.so (java-1_6_0-sun-plugin)
</nowiki></pre>

Can't install Oracle 8.1.7 on Linux Mandrake 8.1

Hello,
I have a problem to run Oracle installer on Linux Mandrake 8.1. The installer crash with segmentation volation.
If anyone has a solution...
Thanks
For Information :I have also installed Oracle Client 8.1.7 on a Gentoo Linux 1.2 with success...

Please try to unset the following variables in your environment.
UNSET LANG
UNSET LIB_PATH
and then try to Invoke the runInstaller.
Thanks,
Srinivas Katta

Linking errors during install on Linux Mandrake

When I installed oracle (8.1.7) on linux mandrake I got a series of errors during
the very last portion of the install involving a bunch of *.mk files.
The first error says:
Error invoking target relink of makefile
$ORACLE_HOME/precomp/lib/ins_precomp.mk
All the others are virtually identical. I'm still pretty new to linux so I avoided
recompiling the kernel. Aside from that I followed the install instructions to the
letter. If anyone knows whats going on I would very much appreciate a push in
the right direction.

Alright, I've tried using the most recent archboot (2011.02-2) a couple times. I selected GRUB2 x86_64 EFI. It asked me whether or not I wanted to convert my existing MBR to GPT. When I say no, it says installation was successful, when I say yes, it drops me into parted, so I just quit. My GPT should be fine as is.
My issue is that now, in rEFIt, I only get OS X and Legacy OS options. Legacy just freezes my computer. The legacy option has been there since I last tried to install, though I've tried to get rid of it a few different ways.
Should I choose a different bootloader option? Can I use the cd to boot in and fix it manually? if possible, I'd like to keep using rEFIt.

How to install J2ME WTK on Linux Mandrake 10.1?

Hello!
I try to install J2ME WTK on to my Linux Mandrake 10.1but it does not work for me. Below is the output after the License agreement.
So if you got any ideas please let me know.
Best regards
Fredrik
Do you agree to the above license terms? [yes or no] yes
j2me_wireless_toolkit-2_2-linux-i386.bin: line 287: cd: /home/fredrik/downloads/Java: No such file or directory
Testing /usr/java/jdk1.5.0_01/bin/java...
A suitable Java interpreter was detected
0) Use /usr/java/jdk1.5.0_01/bin/
1) Specify a path to a Java interpreter directory.
2) Cancel this installation.
Select a choice [0-2]: 1
This application requires Java 2 SDK, Standard Edition (1.4 or later). Enter a path to a Java 2 SDK (For example: /user/jdk1.4/bin). You can type "exit" to cancel installation.
Enter a path to the Java 2 SDK: /usr/java/jdk1.5.0_01/bin
/usr/java/jdk1.5.0_01/bin/java
Testing /usr/java/jdk1.5.0_01/bin/java...
Please enter a directory into which you would like to install the J2me Wireless Toolkit, 2.2.
[ default is /home/fredrik/downloads/Java Micro edition/WTK2.2 ]:/usr/java
j2me_wireless_toolkit-2_2-linux-i386.bin: line 224: cd: /home/fredrik/downloads/Java: No such file or directory
Installation directory is /usr/java.
Setup has enough information to start copying the program files.
Current Settings:
Destination Directory
/usr/java/
JVM Folder
/usr/java/jdk1.5.0_01/bin/
Please choose one of the following options:
0) Begin copying files if you are satisfied with the settings .
1) Cancel the installation.
Select a choice [0-1]: 0
Failed to extract files. Installation will stop now.
Please try to install J2ME Wireless Toolkit again, or contact [email protected] for assistance.
[root@Stationary Java Micro edition]#

Don't add the /bin part of the path. The WTK only wants to parent directory for you J2SDK installation, which would be /usr/java/jdk1.5.0_01. Though I don't know that using J2SDK 1.5 is the best route to take. I would recommend going with the latest 1.4 until they update the WTK.

Urgent :::::.i WISH TO DO THIS WITH JDOM and JAVA .

file A.XML
<XML>
<TP>
<FF>
</FF>
</TP>
</XML>
file B.XML
<XML>
<TP>
<GG>
</GG>
</TP>
</XML>
I WANT TO PASTE node GG in b.xml to a.xml like this
<XML>
<TP>
<FF>
<GG>
</GG>
</FF>
</TP>
</XML>
i WISH TO DO THIS WITH JDOM and JAVA .
Please let me know how to do this ....
i dont want to use XSL OR XSLT ...
i am free for discussions...pls help me
ciao

You can try these steps in case of issues with web pages:
Reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.
*Hold down the Shift key and left-click the Reload button
*Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
*Press "Command + Shift + R" (Mac)
Clear the cache and cookies only from websites that cause problems.
"Clear the Cache":
*Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems:
*Firefox/Tools > Options > Privacy > Cookies: "Show Cookies"
Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do NOT click the Reset button on the Safe Mode start window.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

How to execute Linux command from Java app.

Hi all,
Could anyone show me how to execute Linux command from Java app. For example, I have the need to execute the "ls" command from my Java app (which is running on the Linux machine), how should I write the codes?
Thanks a lot,

You can use "built-in" shell commands, you just need to invoke the shell and tell it to run the command. See the -c switch in the man page for your shell. But, "ls" isn't built-in anyays.
If you use exec, you will want to set the directory with the dir argument to exec, or add it to the command or cmdarray. See the API for the variants of java.lang.Runtime.exec(). (If you're invoking it repeatedly, you can most likely modify a cmdarray more efficiently than having exec() decompose your command).
You will also definitely want to save the returned Process and read the output from it (possibly stderr too and get an exit status). See API for java.lang.Process. Here's an example
java.io.BufferedReader br =
new java.io.BufferedReader(new java.io.InputStreamReader(
Runtime.getRuntime().exec ("/sbin/ifconfig ppp0").
getInputStream()));
while ((s = br.readLine()) != null) {...

Linux mandrake and java

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