Maven dependencies not visible in WEB-INF/lib

java eclipse tomcat maven web-inf
Suraj Chandran picture Suraj Chandran · May 21, 2011 · Viewed 76.5k times · Source

I'm having this weird problem making my project Maven-based. I created a new Maven project in Eclipse and enabled the Dynamic Web facets. But during runtime now it throws ClassNotFoundException because the Maven dependencies are not copied to WEB-INF/lib directory. I even tried adding the copy-dependencies section in POM, but it didn't help.

Someone here seemed to have solved this the right way, but I guess he forgot to mention the solution ::(

Answer

Bozho picture Bozho · May 21, 2011

This should have nothing to do with eclipse and m2eclipse, and optionally for better support - m2e-wtp. Also, you don't need copy-dependencies. Here are a few possible reasons:

  • you should invoke mvn package (or right-click > maven > package) and obtain a war file - the <packaging> (in the pom) must be war
  • your dependencies should be with the default scope (if they are provided or test they will not be included in the archive)
  • if you are running the project as dynamic web project on a server within eclipse, then you should open the project properties (right click > properties) and select "Deployment Assembly". There click "add", select "build path entries", and choose "maven dependencies". This will instruct WTP to send the maven dependencies to the server dir.

Related questions

Tomcat 8 integration with Maven

It sounds like Eclipse (Kepler) does not have a proper plugin for Tomcat 8. I want to deploy my .war into Tomcat 8 and run it by Maven pom.xml file. Can anyone provide me step-by-step guidance or any resources, please? My …

Read More
ClassNotFoundException DispatcherServlet when launching Tomcat (Maven dependencies not copied to wtpwebapps)

I've run into this problem a few times and only just stumbled upon a (semi-) reliable solution, so thought I would post it here in case it helps anyone else, or in case I forget it, and also to ask …

Read More
How to prevent eclipse from deploying test classes on Tomcat?

I have a Maven project, containing the typical folders src/main/java and src/test/java and I am using Eclipse 3.7 with m2e 1.0.and Maven Integration for WTP 1.4.0 . Eclipse is used during development to deploy the application on an …

Read More