perfSONAR User Q&A and Other Discussion

[Rade Martinović <>]

Hello Rodrigo!

 

Although I am not responsible for SSHTELNET service I would like to point out on one thing concerning running Java apps.

 

The thing is when you ran:

 

java -cp lib/commons-logging-1.0.4.jar:lib/jdom-1.0b8.jar:lib/wss4j-1.5.1.jar -jar SSHTELNET_configurator.jar sshtelnet.xml

 

actually the classpath is getting read from META_INF/MANIFEST.MF file inside of the SSHTELNET_configurator.jar because you have used -jar switch. That means that -cp switch gets ignored. In order to use classpath provided with command line you should: a) not use -jar switch; 2) provide main class entry point to the application.

 

The best thing you can do is to extract SSHTELNET_configurator.jar  with unzip utility, look at META_INF_MANIFEST.MF file to see what other libraries are getting called in Class-Path section and what is Main-Class entry point. If commons-logging-1.0.4.jar and jdom-1.0b8.jar entries are present there you should see in what directories are they are being searched for.

 

org.jdom classes should now be available to the application, but I think that this is far from convenient and effort spent is certainly not small.

 

 

Best regards,

-- 
Rade Martinović, M.Sc.E.E
Software engineer

Belgrade University Computer Center
Kumanovska b.b. 11000 Beograd
Serbia

Tel:            +381-11-3031258
Fax:            +381-11-3031259
Email:          
Internet:       http://www.rcub.bg.ac.rs

From:

Sent: Tuesday, 01 June, 2010 14:54

To:

Subject: Re: [perfsonar-user] Prerequisites for SSHTELNET_configurator.jar

 

With classpath explicited, I had the same error:

arch-mp1 Configuration_Tool # java -cp lib/commons-logging-1.0.4.jar:lib/jdom-1.0b8.jar:lib/wss4j-1.5.1.jar -jar SSHTELNET_configurator.jar sshtelnet.xml

Exception in thread "main" java.lang.NoClassDefFoundError: org/jdom/IllegalAddException

Caused by: java.lang.ClassNotFoundException: org.jdom.IllegalAddException

        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)

        at java.security.AccessController.doPrivileged(Native Method)

        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)

        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)

Could not find the main class: ServicePropertiesConfigurator. Program will exit.

I'm thinking if is not another requisite, a indirect one (ex: jdom needs another libs?)

Thanks for the quick response!

____________________________________________
Rodrigo Dlugokenski
Research Assistant/Network Engineering and Computer Science Undergrad Student
Informatics Institute of Federal University of Rio Grande do Sul - Brazil
Academic e-mail: 
Professional e-mail: 

2010/6/1 Błażej Pietrzak <>

Rodrigo Dlugokenski pisze:

Hi all!

I'm trying to deploy the telnet/ssh mp, and the service is running fine in
tomcat.

But my problem is with the SSHTELNET_configurator.jar. When I try to run it
quits with message below:

arch-mp1 Configuration_Tool # java -jar SSHTELNET_configurator.jar
sshtelnet.xml
Exception in thread "main" java.lang.NoClassDefFoundError:
org/jdom/IllegalAddException
Caused by: java.lang.ClassNotFoundException: org.jdom.IllegalAddException
       at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
       at java.security.AccessController.doPrivileged(Native Method)
       at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
       at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class: ServicePropertiesConfigurator. Program will
exit.

Trying to "fix" I installed JDOM and Jakarta-Commons libs, but no luck.

Is some another prerequisite that I don't have in my java enviroment?

My system:
ArchLinux
Java JDK +JRE 1.6u20
eXist db 1.2.6
Tomcat 5.5

I have the very same system for other services I already deployed, like RRD,
SQL, etc, and they're working as expected.
I tried the path with Ubuntu 8 and CentOS 5, but i've found much more
difficult to deploy than with archlinux, I bet that in Ubuntu/CentOS the
prerequisites are installed all automatically, even the indirect ones,
right?

Thanks for your attention,
Rodrigo

____________________________________________
Rodrigo Dlugokenski
Research Assistant/Network Engineering and Computer Science Undergrad
Student
Informatics Institute of Federal University of Rio Grande do Sul - Brazil
Academic e-mail:
Professional e-mail:
 

Hi Rodrigo,

Thanks for using SSH/Telnet MP service.
It looks like the libraries that are used by the Configuration Tool are not found by the JVM. Those libraries are installed together with the Configuration Tool under the Configuration_Tool/lib directory. At first I thought that it is a problem with the working directory path, but it looks like it is something else. No matter what working directory I choose it works on both Ubuntu and CentOS.

In order to solve the problem I need help from your side.
Could you answer to the questions provided below, please?

1. What's under the Configuration_Tool/lib directory (ie. run "ls -al Configuration_Tool/lib" command)?
2. What's the output of the "java -version" command?
3. Could you provide those libraries in the classpath ie. run the command below:
"java -cp lib/commons-logging-1.0.4.jar:lib/jdom-1.0b8.jar:lib/wss4j-1.5.1.jar -jar SSHTELNET_configurator.jar sshtelnet.xml".
Does it work for you?
4. Which package version have you used (e.g. 1.4RC2)?
5. Is it DEB or RPM package?

Best regards
Blazej

--
_________________________________________
Blazej Pietrzak
Network Research and Development
Poznan Supercomputing & Networking Center
Poznan, Poland