topic Re: java.lang.NoClassDefFoundError in Talend Studio

java.lang.NoClassDefFoundError

Anonymous — Sat, 16 Nov 2024 12:53:05 GMT

Hello ,
Im working with talend for more than a month . i dont know why the following java error occurs suddenly while running a job .
before this i didn't changed anything in talend or in job . executed the job as daily but suddenly i got this error .
can any one help me for this issue .
java.lang.NoClassDefFoundError: infobuilder/report_and_mail_0_1/Report_And_Mail
Caused by: java.lang.ClassNotFoundException: infobuilder.report_and_mail_0_1.Report_And_Mail
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: infobuilder.report_and_mail_0_1.Report_And_Mail. Program will exit.
Exception in thread "main"
Thanks in Advance
Nilesh

Re: java.lang.NoClassDefFoundError

Anonymous — Tue, 07 Jun 2011 11:06:39 GMT

Hi Nilesh
The problem is that some of jars are missing, so please check what you have done maybe remove the files. Do you get the same problem when executing other jobs? Do you execute the job in studio or out of studio?
Best regards
Shong

Re: java.lang.NoClassDefFoundError

Anonymous — Tue, 07 Jun 2011 11:13:10 GMT

i have checked with some other jobs . that too showing the same type of error
Im executing the job inside talend open studio as same i did before .

Re: java.lang.NoClassDefFoundError

Anonymous — Tue, 07 Jun 2011 11:47:38 GMT

can anyone help me to overcome this issue asap .

Re: java.lang.NoClassDefFoundError

Anonymous — Wed, 08 Jun 2011 06:14:19 GMT

still im getting the same error while executing a simple job
java.lang.NoClassDefFoundError: infobuilder/check_0_1/check
Caused by: java.lang.ClassNotFoundException: infobuilder.check_0_1.check
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: infobuilder.check_0_1.check. Program will exit.
Exception in thread "main"
can anyone help me .

Re: java.lang.NoClassDefFoundError

Anonymous — Wed, 08 Jun 2011 06:40:17 GMT

Hi
Which OS? Can you show us the installation path?
Best regards
Shong

Re: java.lang.NoClassDefFoundError

Anonymous — Wed, 08 Jun 2011 06:58:39 GMT

im working in "windows 2003 server"
and this is the path which i installed "D:\TOS-All-r50363-V4.1.1\TOS-All-r50363-V4.1.1"
im working with the same background from last 3 months suddenly i got such error

Re: java.lang.NoClassDefFoundError

Anonymous — Wed, 08 Jun 2011 07:13:25 GMT

Hi Nilesh,
Have u added any new classpath variables in the environment variables or the classpath is set?. This error may some times come because of this

Re: java.lang.NoClassDefFoundError

Anonymous — Wed, 08 Jun 2011 07:16:54 GMT

nothing i did .. i was working asusual suddenly this error occured .

Re: java.lang.NoClassDefFoundError

Anonymous — Wed, 08 Jun 2011 07:19:37 GMT

Hi
Ok, can you please install a new studio into another folder? and then create a simple a job and test whether the problem still exists, if not, we will migrate all the jobs from old studio to the new one.
Note that: don't remove the old studio before you backup the projects.
Best regards
Shong

Re: java.lang.NoClassDefFoundError

Anonymous — Wed, 08 Jun 2011 10:03:35 GMT

i have installed talend open studio in a other folder and checked with a simple job now its working fine .
how can i migrate all jobs from old project to this new one?

Re: java.lang.NoClassDefFoundError

Anonymous — Wed, 08 Jun 2011 10:26:35 GMT

Hi
Please follows the steps to migrate all items from old studio to new studio:
1. Empty Recycle bin in old studio.
2. Right click on Job design in old studio and select 'export item' option.
3. Select 'Select archive file' option and browse a archive file path, click on 'Select All' button.
4. Backup the export archive file.
5. Open the new studio, right click on the Job Design and select 'import items' option, and then import all the items from the archive file.
Best regards
Shong

Re: java.lang.NoClassDefFoundError

Anonymous — Wed, 08 Jun 2011 11:10:20 GMT

thanks for ur help . it works

Re: java.lang.NoClassDefFoundError

Anonymous — Thu, 09 Jun 2011 05:28:32 GMT

Hi
Good news! Thanks for your feedback!
Best regards
Shong

Re: java.lang.NoClassDefFoundError

Anonymous — Tue, 26 Jul 2011 12:44:54 GMT

hi ,
I got "java.lang.ClassNotFoundException" error after that i changed the talend path to another drive then started working normally but now again im getting the same error in this path also .
java.lang.NoClassDefFoundError: infobuilder/eventtrigger_sendmail_0_1/eventtrigger_sendmail
Caused by: java.lang.ClassNotFoundException: infobuilder.eventtrigger_sendmail_0_1.eventtrigger_sendmail
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: infobuilder.eventtrigger_sendmail_0_1.eventtrigger_sendmail. Program will exit.
Exception in thread "main"
can anyone help me how this error occurs and how can i solve it ?
With Regards ,
Nilesh R

Re: java.lang.NoClassDefFoundError

jkrfs — Tue, 26 Jul 2011 14:10:21 GMT

If re-importing doesn't work, can I see a screenshot of your job? I had this issue, and it wasn't anything that I could find on the forums but a weird error with how the components were laid out.
Here is my post where I had the same issue: https://community.talend.com/t5/Design-and-Development/resolved-Another-java-lang-NoClassDefFoundError-post/td-p/97162

Re: java.lang.NoClassDefFoundError

Anonymous — Thu, 28 Jul 2011 07:17:31 GMT

thanks for ur valuable reply . i changed the path of environmental variables and now it works .

Re: java.lang.NoClassDefFoundError

_AnonymousUser — Mon, 07 Nov 2011 16:36:05 GMT

I have the same issue. What environment variable have you changed the value?

Re: java.lang.NoClassDefFoundError

_AnonymousUser — Fri, 13 Jan 2012 11:22:50 GMT

Hi SHong,
I have same problem..in my case for new installation and new job also am getting the same issue.
please help me.

Re: java.lang.NoClassDefFoundError

fbehfar — Fri, 12 Apr 2013 19:15:52 GMT

I had the same problem, and it was solved by removing the spaces in the path.
My project directory (path) had a space. Remove any space in all Talend path.
This one works C:\Talend\TalendWorkspace, this C:\Dev\Talend Workspace doesn't!