Air pig,
That story has been doing the rounds since it appeared in the well known conspiracy website Debka. There were claiming that the Chinese aircraft carrier Liaoning was off Syria on 26th September. The J-15 is the carrier capable multi-role Chinese Flanker variant.
It looks like certain media and journalists are still spinning the fabricated story.
The Israeli military and intelligence news website DEBKAfile has now claimed that the Chinese are preparing to join Russia. The Jerusalem-based news website noted that the "J-15 warplanes will take off from the Chinese Liaoning-CV-16 aircraft carrier, which reached Syrian shores on 26 September."
Russia in Syria: Chinese J-15 fighter jets to join Russian air campaign against Isis?