How to solve java.lang.NoClassDefFoundError?

Question

I\'ve tried both the example in Oracle\'s Java Tutorials. They both compile fine, but at run-time, both come up with this error:

Exception in thread \"main\"         


        

Answer 1

I got this error after a Git branch change. For the specific case of Eclipse,there were missed lines on .settings directory for org.eclipse.wst.common.component file. As you can see below

Restoring the project dependencies with Maven Install would help.