Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/JDBC_DBO]]
You are missing commons-digester3-3.2.jar from Apache Commons Digester. If you are using Maven you can add: <dependency> <groupId>commons-digester</groupId> <artifactId>commons-digester</artifactId> <version>2.1</version> </dependency> to your project dependencies. Update: The jar from the latest download page has a slightly different package structure to what your application expects. You can use this older jar instead.