GXTWebsocketClient
org.eclipse.wst.common.project.facet.core.builder
org.eclipse.jdt.core.javabuilder
com.google.gdt.eclipse.core.webAppProjectValidator
com.google.gwt.eclipse.core.gwtProjectValidator
com.gwtplugins.gdt.eclipse.core.webAppProjectValidator
com.gwtplugins.gwt.eclipse.core.gwtProjectValidator
org.eclipse.jdt.core.javanature
com.google.gwt.eclipse.core.gwtNature
org.eclipse.wst.common.project.facet.core.nature
com.gwtplugins.gwt.eclipse.core.gwtNature