Classpath to?

try

java -classpath . test

Hi, class name and file name should be same. Do you have a class called "test" ?

It would be helpful if you post the code

---
Harish

>>Also when i'm tryin to export PATH=/path/to/java:${PATH}

Did you put that in .bashrc (assuming Bash)?

>> java "test"

try it without the quotes.

and it's case sensitive, so Test and test are not the same.

and you should be using the jdk, not the jre.

>>try it without the quotes

shouldn't make any difference

>>and you should be using the jdk, not the jre.

Why?

isn't jre the runtime environment. We use the jdk to develop java applications.

Actually i'm tryin to do a hello world so its not neccesary to have a class file.is it?

I tried also testin a class file but still the same error

I tried java test , java Test , java "test" , java "Test"
what else i should try?

you need the class file no matter how small you application is.

did you try what CHEJ suggested, java -cp ./ test ?

>>Actually i'm tryin to do a hello world so its not neccesary to have a class file.is it?

Yes. Only class files can be run by a VM

i tried the java -cp . filename.jar

I tried testin it with a classfile but still no diference.
I'm sorry but i'm a newbie maybe i'm just passin a pretty dump step but I need your assistance.
May be that my Classfiles are incorrect ( which i'm 90% sure they are correct ) but can you guys upload me a hello world classfile somewhere which i can test it.

Thanks

Do you *have* a jar file? If so, try

java -jar filename.jar

what does your hello world code look like ?

Run the following thus


java -classpath . Props



http://www.sigma-software.freeserve.co.uk/misc/Props.class

CEHJ,
I guess this worked..it shows me some properties

[code]
java.runtime.name=Java(TM) 2 Runtime Environment, Stand...
sun.boot.library.path=/usr/lib/jvm/java-1.4.2-sun-1.4.2.08/...
java.vm.version=1.4.2_08-b03
java.vm.vendor=Sun Microsystems Inc.
java.vendor.url=http://java.sun.com/
path.separator=:
java.vm.name=Java HotSpot(TM) Client VM
file.encoding.pkg=sun.io
user.country=US
sun.os.patch.level=unknown
java.vm.specification.name=Java Virtual Machine Specification
user.dir=/home/l2j
java.runtime.version=1.4.2_08-b03
java.awt.graphicsenv=sun.awt.X11GraphicsEnvironment
java.endorsed.dirs=/usr/lib/jvm/java-1.4.2-sun-1.4.2.08/...
os.arch=i386
java.io.tmpdir=/tmp
line.separator=

java.vm.specification.vendor=Sun Microsystems Inc.
os.name=Linux
sun.java2d.fontpath=
java.library.path=/usr/lib/jvm/java-1.4.2-sun-1.4.2.08/...
java.specification.name=Java Platform API Specification
java.class.version=48.0
java.util.prefs.PreferencesFactory=java.util.prefs.FileSystemPreferences...
os.version=2.4.20-021stab028.19.777-enterprise
user.home=/root
user.timezone=
java.awt.printerjob=sun.print.PSPrinterJob
file.encoding=ANSI_X3.4-1968
java.specification.version=1.4
user.name=root
java.class.path=.
java.vm.specification.version=1.0
sun.arch.data.model=32
java.home=/usr/lib/jvm/java-1.4.2-sun-1.4.2.08/jre
java.specification.vendor=Sun Microsystems Inc.
user.language=en
java.vm.info=mixed mode
java.version=1.4.2_08
java.ext.dirs=/usr/lib/jvm/java-1.4.2-sun-1.4.2.08/...
sun.boot.class.path=/usr/lib/jvm/java-1.4.2-sun-1.4.2.08/...
java.vendor=Sun Microsystems Inc.
file.separator=/
java.vendor.url.bug=http://java.sun.com/cgi-bin/bugreport...
sun.cpu.endian=little
sun.io.unicode.encoding=UnicodeLittle
sun.cpu.isalist=
[/code]

Don't mention the 1.4 version..cuz i haven't changed the path yet.
But it worked.

Now what do you think is the problem?

Difficult to say if you only have binary code

If you post test.class somewhere, i may be able to tell you

posting your test.java file would be useful also.

>>posting your test.java file would be useful also.

Does that even exist?

I would hope so.

I mean come on, if you're learning java you should at least have the code form the start.

dude..thats a 10mb proj..so dunno if that would be usefull for you?

i'm not tryin to learn java..all i need is to run that project and i'm stuck at the java part!

>>dude..thats a 10mb proj.

That's an odd class name for something that size ;-) I'm on dial-up here - so maybe not ;-)

Can you list the directory in which you think your project files reside?

Ok, so what are you doing with the hello world program then ?

its a gameserver..

.                       l2jserver.jar
..                      log
LoginServer_loop.sh     log.cfg
RegisterGameServer.bat  mysql-connector-java-3.1.10-bin.jar
RegisterGameServer.sh   servername.xml
banned_ip.cfg           sqljdbc.jar
c3p0-0.9.0.jar          startLoginServer.bat
config                  startLoginServer.sh
console.cfg             startSQLAccountManager.bat
javolution.jar          startSQLAccountManager.sh

what am i doing with the hello world is I just wanted to see that my Java is installed correctly.

ok, so did you manage to get the hello world running ?

It is ;-)

sh startLoginServer.sh

(?)

actually i need to run this command to start the server

su -c "java -Xms512m -Xmx512m -cp javolution.jar:c3p0-0.9.0.jar:mysql-connector-java-3.1.10-bin.jar:l2jserver.jar net.sf.l2j.loginserver.LoginServer" UserHere

Kelvin,
I successfully got the Props.class runnin

>>I successfully got the Props.class runnin

(Hence my last comment)

>>actually i need to run this command to start the server

You should avoid running it as root. Why do you need to?

cool : )

so what error do you get when u start the server now ?

i created a superuser..
I had some difficulties on creatin normal user with super permissions
So I had to create a Superuser.

Is that the issue?

Exception in thread "main" java.lang.UnsupportedClassVersionError: net/sf/l2j/loginserver/LoginServer (Unsupported major.minor version 49.0)
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:251)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:55)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:194)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)

I read on the server forums something about this and they say I need to correct the classpath

It means you need to update your JRE. Can you post the output of

java -version

>>Is that the issue?

No, but it shouldn't run as root

Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Server VM (build 1.5.0_06-b05, mixed mode)

seems i'm runnin the latest version.

Hmm, just to be sure, can you post the the output of this?



su -c "java -version"

Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_08-b03)
Java HotSpot(TM) Client VM (build 1.4.2_08-b03, mixed mode)

You got me!!

I did the export PATH=/path/to/java:${PATH}
which seems to be temporary.

I'm usin two version...cuz i still didn't put the PATH for java on bashrc or where i have to put that because i didn't find anything related to that.

I did the export PATH=/path/to/java:${PATH}
which seems to be temporary.

only a file called bash.bashrc where I can't find anything about the Java path .

You need to run it with the other (later) version

export JAVA_HOME=<insert path to 1.5 install directory>
export PATH=$JAVA_HOME/bin:$PATH

ok I did this
but yet if i type su -c"java -version" it shows me i have the older one.

Well as i mentioned, you shouldn't be running as root, but if you must, you need to include the above lines in root's .bashrc

OK i tried runnin with a normal user.
Still the same issue

Can you post

su normaluser -c "java -version"

java version "1.4.2_08"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_08-b03)
Java HotSpot(TM) Client VM (build 1.4.2_08-b03, mixed mode)

can you tell me where exactly do i write the export path so it can be permanent.
that bash.bashrc?

Can i just write that on the first line?

There's your problem. You need to put those export commands in normaluser's .bashrc

>>Can i just write that on the first line?

I'd put it at the end

i'm sorry..i'm a newbie at this so can you tell me where do i find the normal users bashrc?

su normaluser
...

<your editor> .bashrc

Domestic matters call. Back later

OK i edited that.
Now i don't need to type after every login the export thingy
But on the su user -c "java -version" still keeps tellin me i'm usin the 1.4 version

And you've altered 'user's .bashrc

yes..there was only a bash.bashrc file on etc and i altered that one.
I had to change into root account so i can edit the file

>>on etc and i altered that one.

No. The right one's

/usr/home/user/.bashrc

I can't find a home folder under usr

su normaluser

<edit command> ~/.bashrc

When i created my normal user ..i created from the / directory.
now when i type su user it gets me to the / dir
and there is no .bashrc file

man useradd

> yes..there was only a bash.bashrc file on etc and i altered that one.

can you post the change you made

sure,
I just added the followin lines on the end of the file

export JAVA_HOME=/path/to/java
export PATH=$JAVA_HOME/bin:$PATH

I tried creatin a normal user on several ways..i read some posts here on exchange but no effect.
I did the following

useradd -d /home/user username
it didn't show me the .bashrc on the home profile

also tried
useradd -d /home/user -s /../crsh username
but when i tried to log in it kept tellin me i type a wrong password.

if you've added it to bash.bashrc then you shouldn't need to cheange the users bashrc

what does the follwoing return:

/path/to/java/bin/java -version

java version "1.5.0_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Server VM (build 1.5.0_06-b05, mixed mode)

Whereever i type java -version i get this.
But when i type su -c "java -version" from anywhere i keep gettin this

java version "1.4.2_08"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_08-b03)
Java HotSpot(TM) Client VM (build 1.4.2_08-b03, mixed mode)


btw, atm i'm having another problem!
I'm startin the server via sh LoginServer_loop.sh but when i go to logs i get an error something like this

Not enough space on Java blah blah

I'll post the exact error later ,my server is down atm so i can't get the error.

this is the exact error

Could not reserve enough space for object heap
Could not create the Java virtual machine.

Try

su -m -c "java -version"

vs187210:~ # su -m -c "java -version"
java version "1.5.0_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Server VM (build 1.5.0_06-b05, mixed mode)

anything?

If you su in that way, you won't have a problem with having the wrong JDK

and what exactly means this

"Could not reserve enough space for object heap
Could not create the Java virtual machine."??

I know i'm gettin out of topic scope on every post but the whole topic is about how to bring that server alive.!!

can u post LoginServer_loop.sh

thanks a llot for your help  i have some problems with my hosting so i'll close this thread  and give you the points for all your time that you spent helping me (CEHJ)

:-)