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layout: default_md title: NoClassDefFoundError - org.springframework.core.io.Resource title-class: page-title-activemq5 type: activemq5

 FAQ > Errors > Exceptions > NoClassDefFoundError - org.springframework.core.io.Resource

If you get an exception like this

java.lang.NoClassDefFoundError - org/springframework/core/io/Resource

Cause

You were probably trying to use the XML Configuration mechanism, which uses Spring, but without having the Spring jar on your classpath.

Solution

Add the Spring jar to your classpath.