public class Startup implements IStartup {
    @Override
    public void earlyStartup() {
        try {
            for (IProject project : ResourcesPlugin.getWorkspace().getRoot().getProjects()) {
                if (project.isNatureEnabled(JavaCore.NATURE_ID)) {
                    IJavaProject javaProject = JavaCore.create(project);
                    if (!AptConfig.isEnabled(javaProject)) {
                        AptConfig.setEnabled(javaProject, true);
                    }
                }
            }

            IResourceChangeListener listener = new IResourceChangeListener() {
                @Override
                public void resourceChanged(IResourceChangeEvent event) {
                    IResourceDelta rootChange = event.getDelta();
                    for (IResourceDelta projectChange:rootChange.getAffectedChildren()) {
                        if (projectChange.getKind() == IResourceDelta.ADDED) {
                            IProject project = (IProject)projectChange.getResource();
                            try {
                                if (project.isNatureEnabled(JavaCore.NATURE_ID)) {
                                    IJavaProject javaProject = JavaCore.create(project);
                                    if (!AptConfig.isEnabled(javaProject)) {
                                        AptConfig.setEnabled(javaProject, true);
                                    }
                                }
                            } catch (CoreException e) {
                                throw new RuntimeException(e);
                            }                            
                        }
                    }
                }
            };
            
            ResourcesPlugin.getWorkspace().addResourceChangeListener(listener, IResourceChangeEvent.PRE_BUILD);
        
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    }
}