If a client sends an HTTP multipart request to Wildfly with this in the header the request fails:
Content-Type: multipart/form-data; boundary=hahHQDg8maFVRagSdGWVZTe_VEHpjmlT; charset=UTF-8

The request fails because the boundary includes the semicolon that seperates different parameters.

The request above worked in JBoss 6. The above request header was generated by apache http client.