com.perforce.team.ui org.eclipse.jdt.core.javabuilder org.eclipse.pde.ManifestBuilder org.eclipse.pde.SchemaBuilder com.atlassw.tools.eclipse.checkstyle.CheckstyleBuilder net.sf.eclipsecs.core.CheckstyleBuilder org.eclipse.pde.PluginNature org.eclipse.jdt.core.javanature com.atlassw.tools.eclipse.checkstyle.CheckstyleNature net.sf.eclipsecs.core.CheckstyleNature