org.springframework.samples.petclinic Servers org.eclipse.jdt.core.javabuilder org.eclipse.wst.common.project.facet.core.builder org.eclipse.wst.validation.validationbuilder org.springframework.ide.eclipse.core.springbuilder org.maven.ide.eclipse.maven2Builder org.maven.ide.eclipse.maven2Nature org.springframework.ide.eclipse.core.springnature org.eclipse.jdt.core.javanature org.eclipse.wst.common.project.facet.core.nature org.eclipse.wst.common.modulecore.ModuleCoreNature