eclipse – java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing

eclipse – java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing

Add hamcrest-all-X.X.jar to your classpath.

Latest version as of Feb 2015 is 1.3:
http://code.google.com/p/hamcrest/downloads/detail?name=hamcrest-all-1.3.jar&can=2&q=

According to the JUnit GitHub team website (https://github.com/junit-team/junit/wiki/Download-and-Install), junit.jar and hamcrest-core.jar are both needed in the classpath when using JUnit 4.11.

Here is the Maven dependency block for including junit and hamcrest.

<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.1.2</version>
    <scope>test</scope>
</dependency>
<!-- Needed by junit -->
<dependency>
    <groupId>org.hamcrest</groupId>
    <artifactId>hamcrest-all</artifactId>
    <version>1.3</version>
    <scope>test</scope>
</dependency>

eclipse – java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing

A few steps you have to follow:

1. Right click on the project.
2. Choose Build Path Then from its menu choose Add Libraries.
3. Choose JUnit then click Next.
4. Choose JUnit4 then Finish.