MixinAnnoProcessor How to run UseMixinannoprocessor Download the project UseMixinAnnoProcessor and import into Eclipse. Download the jar file MixinAnnoprocessor/MixinProcessor.jar In Eclipse, go to project Properties settings: add MixinProcessor.jar to build path by: Java Build Path -> Libraries -> Add External JARs. set MixinProcessor.jar as the annotation processor by: Java Compiler -> Annotation Processing -> Factory Path -> Add External JARs. Build Run test.Main.java How to run UseMixinLombok In terminal, browse to directory MixinAnnoprocessor/MixinLombok $ant eclipse $ant Quit eclipse Run (by double clicking) the generated jar MixinAnnoprocessor/MixinLombok/dist/lombok.jar Now start eclipse and import the jar file to project UseMixinLombok