https://access.redhat.com/webassets/avalon/d/red_hat_jboss_enterprise_application_platform/8.1/javadocs/com/sun/xml/xsom/impl/WildcardImpl.html
WildcardImpl (Red Hat JBoss Enterprise Application Platform 8.1.1.GA + JBoss EAP XP 6.0.0.GA public...
declaration: package: com.sun.xml.xsom.impl, class: WildcardImpl