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lang. NoClassDefFoundError, which means the Class Loader file responsible for dynamically loading classes can not find the . class file. So to remove this error, you should set your classpath to the location where your Class Loader is present.
NoClassDefFoundError error in tomcat,JBoss,WebSphere* NoClassDefFoundError error in servers occurs because the jar is not in the classpath. To fix this, see the complete stack trace and find the jar which contains the jar and try to copy it to the server classpath or application classpath.
java. lang. NoClassDefFoundError is runtime error thrown when a required class is not found in the classpath and hence JVM is unable to load it into memory.
Addendum: Locally I have created a "User Library" and added to my projects which has
hamcrest-core-1.3.jar
junit-4.12.jar
The same problem can occur if you have downloaded JUnit jar from the JUnit website, but forgotten to download the Hamcrest jar - both are required (the instructions say to download both, but I skipped ahead! Oops)
When using in Maven, update artifact junit:junit from e.g. 4.8.2 to 4.11.
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