Maven in eclipse - Class not found

If you change your class path using Maven , not default one (target/classes).
Maybe you will get the problem.

Solution :
chech your POM

...
<build>
...
<outputDirectory>
target/YouProject/WEB-INF/classes
</outputDirectory>

<testOutputDirectory>
target/YouProject/WEB-INF/classes
</testOutputDirectory>
..
</build>

make sure your java build path



That is !