Jira issue originally created by user bobcatsys:
The XSD type for the 'class' attribute in the 'discriminator-mapping' element is 'xs:NMTOKEN'. But this does not allow the '\' characters used for PHP namespacing. The 'type' should instead be changed to 'xs:string' as shown below:
Comment created by @beberlei:
Fixed, scheduled for 2.0.6
Issue was closed with resolution "Fixed"