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question asked: Jan 31 '11, 7:34 a.m.
question was seen: 4,371 times
last updated: Jan 31 '11, 7:34 a.m.

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ClassNotFoundException when using JDBC inside a Followup Act

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Stefan Hufnagl (294●1●19●20) | asked Jan 31 '11, 7:34 a.m.
Hello,

I have to use JDBC inside a FollowUp Action, because I have to reuse a existent JDBC Oracle implementatin from Plain Java.

When the Server Side FollowUp Action triggers my OperationParticipant I use Class.forName(...) and get a ClassNotFoundException.

I tried to include the JDBC Jar File inside my Service Plugins and changed the Build Path.

Questions:
* The "Server Side FollowUp Action Plugin" is a OSGi Bundle?
* If yes, the OSGi Classloader seems to have problems.
* Should I create an other OSGi Bundle, only with the JDBC Driver?
* Then, I could include a Dependency to this JDBC Bundle?

Please don't say that the usage of JDBC is not recommented...

Thanks

Stefan

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Stefan Hufnagl (294●1●19●20) | answered Feb 01 '11, 4:44 a.m.
Hi,

tests with MySQL showed me that putting the JDBC inside a OSGi Bundle is successful.

Solution:
* Create a new PlugIn Project "Plugin from a existend Jar Archive"
* Include this Project into your plugin.xml (Dependencies -Required Plugins)
* Now you can use JDBC like in a Plain Java Program. No ClassNotFound
Exceptions!

Thanks

Stefan

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