JMapViewer org.eclipse.jdt.core.javabuilder net.sf.eclipsecs.core.CheckstyleBuilder edu.umd.cs.findbugs.plugin.eclipse.findbugsBuilder org.sonar.ide.eclipse.core.sonarNature org.eclipse.jdt.core.javanature net.sf.eclipsecs.core.CheckstyleNature edu.umd.cs.findbugs.plugin.eclipse.findbugsNature