Doshin-So the founder of Shorinji-Kempo I believe had studied Daito-Ryu(the forerunner of Aikido), however while stationed in China he visited the Shaolin temple(at the time almost in ruins), but no martial arts practiced there at the time except for an elderly monk who superficially knew a little, it is attested that Doshin-So basically drew inspiration from the remaining murals at the temple depicting monks in boxing postures/sparring. The two fundamental hand techniques of Shorinji-Kempo - the block/parry move the practitioners use as initial posture to any of the SK exercises, and the basic simultaneous parry-punch technique can be seen in Shaolin Xinyiba but there with a softer approach, those two techniques correspond somewhat with Xingyiquan’s splitting and cannon fists.
Find and have a look at the SK parts of the Japanese Kuro-Obi video series, looks very cool, the SK organization seems to have an amazing hombu dojo in Japan .