After executing the command xjc -nv <path/to/XSD-files> to create classes out of the XSD files (https://github.com/ezsystems/ezpublish-kernel/tree/master/doc/specifications/rest/xsd), the following errors appear:

• ContentCreate.xsd
  • line 9: locationCreateType is unknown --> using vnd.ez.api.LocationCreate and including LocationCreate.xsd solves it
• Content.xsd
  • line 10: versionType is unknown --> using vnd.ez.api.Version solves it
• UserGroup.xsd
  • line 10: contentInfoType is unknown --> using vnd.ez.api.ContentInfo solves it
• User.xsd
  • line 10: contentInfoType is unknown --> using vnd.ez.api.ContentInfo solves it
• Version.xsd
  • line 32: vnd.ez.api.Relation is unknown --> using relationType solves it

Seems that the namespace was changed.

• ErrorMessage.xsd
  • line 18: xsd:attribute is wrong here --> should be pushed to line 35 at the end of xsd:complexType, after the xsd:all
• FieldValue.xsd
  • line 10: valueType is already defined
• CommonDefinitions.xsd
  • line 31: (related to above error) the first definition appears here
• FieldValue.xsd
  • line 15: fieldValueType is already defined
• CommonDefinitions.xsd
  • line 38: (related to above error) the first definition appears here
• ObjectRelation.xsd
  • line 6: relationListType is already defined
• Relation.xsd
  • line 29: (related to above error) the first definition appears here
• FieldDefinitionUpdate.xsd
  • line 84: FieldDefinitionInput is already defined
• FieldDefinitionCreate.xsd
  • line 95: (related to above error) the first definition appears here