jakarta-jetspeed-2 jakarta-pluto com.atlassw.tools.eclipse.checkstyle.CheckstyleBuilder org.eclipse.jdt.core.javabuilder org.eclipse.ui.externaltools.ExternalToolBuilder LaunchConfigHandle <project>/.externalToolBuilders/org.springframework.ide.eclipse.beans.core.beansvalidator.launch com.ibm.sse.model.structuredbuilder org.springframework.ide.eclipse.beans.core.beansnature org.eclipse.jdt.core.javanature com.atlassw.tools.eclipse.checkstyle.CheckstyleNature