topic Re: Could not find or load main class (DB2) in Talend Studio

Could not find or load main class (DB2)

Anonymous — Sat, 16 Nov 2024 03:05:52 GMT

Hi,

I'm facing issues while running a talend job that involves a DB2 connection.

When I test the connection, it gets connected successfully but when I place the dbinput/output component on a job, it throws me an error

Error: Could not find or load main class chetna01.testjob_0_1.Testjob.

I do have all the 2 db2 jar files present. The 1 jar and 2 license files.

Had it been the jar issues, even the db2 connection shouldn't have been successful I suppose.

Can someone help???

Thanks.

Re: Could not find or load main class (DB2)

Anonymous — Wed, 04 Mar 2020 11:28:50 GMT

Hi
Can you please provide the following information? It would help us to more easily evaluate your issue:
- Product and Version which you used (for example, Talend Data Fabric 7.3.1)
- Operating System, for example, Windows Server 2008 R2 SP1 (64bit)
- Version of Java Platform JDK / JRE in use (for example, ORACLE JDK 1.8.0_161)

Regards
Shong

Re: Could not find or load main class (DB2)

Anonymous — Wed, 04 Mar 2020 11:39:50 GMT

sure.

talend version : Talend open studio for big data (7.2.1)

IOS Version : 10.14.6 (macOS Mojave)

jdk version : 1.8.0_241

Re: Could not find or load main class (DB2)

manodwhb — Thu, 05 Mar 2020 03:43:26 GMT

@Chetna_chawla1 , can you the all DB2 jars are installed or not from the Modules and make sure the required jars..

Module Location :-Windows>>Show View>>Talend>>Modules

Re: Could not find or load main class (DB2)

Anonymous — Thu, 05 Mar 2020 05:25:52 GMT

Yes i do have all the jars installed. Please have a look at the screenshot.

Re: Could not find or load main class (DB2)

Ganshyam — Thu, 05 Mar 2020 09:45:52 GMT

Hello,

Its commonly observed while running the designed job , seems to be a bug or anything else never came to know.

but the ways to deal is.

1) Save the job and run the job.

2) Close the job and reopen the job and run the job.

3) If above does not work close the studio and restart the studio.

Regards

Re: Could not find or load main class (DB2)

Rakesh_Ranjan — Tue, 19 Jan 2021 16:16:31 GMT

I am not sure - if the error was a fluke or something else and also if the ways to resolve is Appropriate:

1. Re-Extracted the Talend Executable ZIP. (Risky if you have code in your local and not committed to GIT)

2. Opening the Job that has the Db2 Component provided the Option to Install the 3 Jars.

3. Carefully select the Jars one after another and Download and Install.

4. Build the job and Execute