Using the Annotation Processor - IDE - Eclipse
8.4.2.1. Eclipse Do the following to use the annotation processor within the Eclipse IDE: Right-click your project, choose "Properties" Go to "Java Compiler" and make sure, that "Compiler compliance level" is set to "1.6". Otherwise the processor won't be activated Go to "Java Compiler - Annotation Processing" and choose "Enable annotation processing" Go to "Java Compiler - Annotation Processing - Factory Path" and add the following JARs: validation-api-1.0.0.GA.jar hibernate-validator-annotation-processor-4.1.0.Final.jar Confirm the workspace rebuild You now should see any annotation problems as regular error markers within the editor and in the "Problem" view: