language-web org.eclipse.jdt.core.javabuilder org.eclipse.xtext.ui.shared.xtextBuilder org.eclipse.wst.common.project.facet.core.builder org.eclipse.wst.validation.validationbuilder org.eclipse.buildship.core.gradleprojectbuilder org.eclipse.jdt.core.javanature org.eclipse.xtext.ui.shared.xtextNature org.eclipse.wst.common.project.facet.core.nature org.eclipse.buildship.core.gradleprojectnature