PCErr not generated when PCRpt with missing LSP-IDENTIFIERS TLV is received

From PCE spec, LSP-IDENTIFIERS TLV must be present in PCRpt for RSVP-signaled LSPs. I changed pcc-mock code to not send it and tried it against the controller. checkException is seen in karaf log and Controller does not seem to be sending the error message back. Ideally it should generate PCErr with error with type=6, value=11

https://tools.ietf.org/html/draft-ietf-pce-stateful-pce-14#section-7.3.1

7.3.1. LSP-IDENTIFIERS TLVs

The LSP-IDENTIFIERS TLV MUST be included in the LSP object in PCRpt
messages for RSVP-signaled LSPs. If the TLV is missing, the PCE will
generate an error with error-type 6 (mandatory object missing) and
error-value 11 (LSP-IDENTIFIERS TLV missing) and close the session.
The LSP-IDENTIFIERS TLV MAY be included in the LSP object in PCUpd
messages for RSVP-signaled LSPs.