ClassNotFoundException oracle.jdbc.driver.OracleDriver

Question

I know there are thousands of blogs about CNFEs out there, but I can't get it work.

I use Maven to build my GWT project. In the pom.xml, there is this line:

<dependency>
    <groupId>oracle</groupId>
    <artifactId>ojdbc6</artifactId>
    <version>11.2.0.3</version>
    <scope>runtime</scope>
</dependency>

In the built .war file, there is the correct .jar in WEB-INF/lib. So the class is where I expect it to be. But I'm still getting a ClassNotFoundException.

Where am I wrong? Is it because of the runtime scope?

well, does it work if you remove the scope? have you updated your maven dependencies? — XtremeBaumer, Jul 19 '17 at 09:05
When do you receive the exception? If it comes during the build then it is surly because of the runtime scope. — Balázs Nemes, Jul 19 '17 at 09:05
The exception is thrown on runtime when I want to access the db. — Franz Deschler, Jul 19 '17 at 09:06
Perhaps you have other versions as well? (other jars, included differently maybe) — Andrei, Jul 19 '17 at 09:50
I have 2 environments where the webapp runs. I found out, that it works on the one environment, but not on the other one. So it´s most likely a platform specific problem. — Franz Deschler, Jul 19 '17 at 10:20

score 1 · Answer 1 · answered Jul 19 '17 at 09:07

Check your project build-path and enable specific output folders for each folder. Go one by one through each source-folder of your project and set the output folder that Maven would use.

For eg., your web project's src/main/java should have target/classes under the web project and so.

If your web project require some configuration files that are under the resources, be sure to include that folder as a source folder and to make the proper build-path configuration.

score 0 · Answer 2 · answered Jul 20 '17 at 12:26

0

It turned out, that the driver needs to be inside tomcat´s /lib folder.

It has something to do with the DataSource as described in this post:

Tomcat6 ignores web-inf/lib

answered Jul 20 '17 at 12:26

Franz Deschler

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ClassNotFoundException oracle.jdbc.driver.OracleDriver

2 Answers2