Eclipse Community Forums: Java Development Tools (JDT) » Classpath entry will not be exported or published. Runtime ClassNotFoundExceptions may result.

Home » Language IDEs » Java Development Tools (JDT) » Classpath entry will not be exported or published. Runtime ClassNotFoundExceptions may result.(Ignoring that warning, I am getting ClassNotFoundException: COM.ibm.db2.jdbc.app.DB2Driver )

Classpath entry will not be exported or published. Runtime ClassNotFoundExceptions may result. [message #772188]

Thu, 29 December 2011 02:51

Eclipse User

hello

Trying to connect to DB2.
I got connection in Data Source Explorer.

But the following code is not working Crying or Very Sad

Class.forName("COM.ibm.db2.jdbc.app.DB2Driver");
java.sql.Connection cn = DriverManager.getConnection("string");

Exception generated is:
java.lang.ClassNotFoundException: COM.ibm.db2.jdbc.app.DB2Driver

So I added db2java.jar within user library under the java resources.
validating the project I am getting warning
Classpath entry ...../db2java.jar will not be exported or published. Runtime ClassNotFoundExceptions may result. Rolling Eyes

Ignoring that warning, I am getting ClassNotFoundException: COM.ibm.db2.jdbc.app.DB2Driver

So I guess the problem is that I am not able to include the jar files effectively...
Thanks Smile

I tried to add new path variable also but the warning generated is same as above..

Re: Classpath entry will not be exported or published. Runtime ClassNotFoundExceptions may result. [message #772970 is a reply to message #772188]

Fri, 30 December 2011 22:58

Eclipse User

Found a work arround...

"Run -> Run Configurations -> Classpath (tab) -> Add External Jars"

adding the required jar over here solves the problem, but
don't know if it is a correct approach.

Re: Classpath entry will not be exported or published. Runtime ClassNotFoundExceptions may result. [message #773645 is a reply to message #772970]

Mon, 02 January 2012 01:58

Eclipse User

I am assuming you have configured your Connectivity driver definition already.

Quote:

So I added db2java.jar within user library under the java resources.

I don't understand what you meant by this. But when I added the driver jar via a user library, it did work for me. The recommended approach, though, is to add the library to the project as a connectivity driver definition, which is available in the "Add Library" wizard.

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