https://download.eclipse.org/modeling/emf/emf/javadoc/2.8.0/org/eclipse/emf/ecore/util/BasicExtendedMetaData.EPackageExtendedMetaData.Holder.html
BasicExtendedMetaData.EPackageExtendedMetaData.Holder (EMF Javadoc)
holderemfjavadoc
https://download.eclipse.org/modeling/emf/emf/javadoc/2.10.0/org/eclipse/emf/ecore/util/BasicExtendedMetaData.EPackageExtendedMetaData.Holder.html
BasicExtendedMetaData.EPackageExtendedMetaData.Holder (EMF Documentation)
holderemfdocumentation
https://download.eclipse.org/modeling/emf/emf/javadoc/2.10.0/org/eclipse/emf/ecore/util/BasicExtendedMetaData.EPackageExtendedMetaData.html
BasicExtendedMetaData.EPackageExtendedMetaData (EMF Documentation)
emfdocumentation