# java.lang.ClassNotFoundException: oracle.jdbc.OracleDriver not found by com.atlassian.activeobjects.activeobjects-plugin

**URL:** <https://community.developer.atlassian.com/t/java-lang-classnotfoundexception-oracle-jdbc-oracledriver-not-found-by-com-atlassian-activeobjects-activeobjects-plugin/59645>\
**Category:** Atlassian Developer Tools\
**Tags:** plugin-sdk, active-objects, bitbucket-server, entity-manager\
**Created:** [July 6, 2022, 10:53am UTC](https://community.developer.atlassian.com/t/java-lang-classnotfoundexception-oracle-jdbc-oracledriver-not-found-by-com-atlassian-activeobjects-activeobjects-plugin/59645 "2022-07-06T10:53:19Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![BIF01](https://avatars.discourse-cdn.com/v4/letter/b/e19adc/32.png) [@BIF01](https://community.developer.atlassian.com/u/BIF01)\
**Post date:** [July 6, 2022, 10:53am UTC](https://community.developer.atlassian.com/t/java-lang-classnotfoundexception-oracle-jdbc-oracledriver-not-found-by-com-atlassian-activeobjects-activeobjects-plugin/59645/1 "2022-07-06T10:53:19Z")

</div>

We are trying to use EntityManager from Active Objects as per [Creating an EntityManager](https://developer.atlassian.com/server/framework/atlassian-sdk/creating-an-entitymanager/).

Bitbucket SDK does not seem to include Oracle JDBC driver, so we copy from a Bitbucket Server instance the Oracle JDBC driver at **$BITBUCKET\_SERVER\app\WEB-INF\lib\ojdbc8-12.2.0.1-atlassian-hosted.jar** into our plug-in workspace at **target\bitbucket\app\WEB-INF\lib\ojdbc8-12.2.0.1-atlassian-hosted.jar** as per [https://community.atlassian.com/t5/Jira-questions/Re-JDBC-Driver-Loading-in-Jira-8-0-0/qaq-p/2020555/comment-id/533703#M533703](https://community.atlassian.com/t5/Jira-questions/Re-JDBC-Driver-Loading-in-Jira-8-0-0/qaq-p/2020555/comment-id/533703#M533703).

We got the exception:

```auto
Caused by: net.java.ao.builder.UnloadableJdbcDriverException: Could not load JDBC driver <oracle.jdbc.OracleDriver>
at net.java.ao.builder.SupportedDatabase.checkDriverLoaded(SupportedDatabase.java:122)
at net.java.ao.builder.SupportedDatabase.getDataSource(SupportedDatabase.java:104)
at net.java.ao.builder.SupportedDatabase$5.getDatabaseProvider(SupportedDatabase.java:52)
at net.java.ao.builder.DatabaseProviderFactory.getDatabaseProvider(DatabaseProviderFactory.java:8)
at net.java.ao.builder.EntityManagerBuilderWithDatabaseProperties.build(EntityManagerBuilderWithDatabaseProperties.java:20)
at it.bancaifis.change.ao.ChangeEntityManager.<init>(ChangeEntityManager.java:24)
at it.bancaifis.change.ao.DeployService.<init>(DeployService.java:21)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:203)
... 9 common frames omitted
Caused by: java.lang.ClassNotFoundException: oracle.jdbc.OracleDriver not found by com.atlassian.activeobjects.activeobjects-plugin [23]
at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1639)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at net.java.ao.builder.SupportedDatabase.getDriverClass(SupportedDatabase.java:142)
at net.java.ao.builder.SupportedDatabase.checkDriverLoaded(SupportedDatabase.java:120)
... 16 common frames omitted

```

**net.java.ao** seems to be included from **com.atlassian.activeobjects.activeobjects-plugin** , so does is it not the _original_ one?

Any advice?  
Thanks in advance.  
Cheers.