I thought latte stones were also found in Malaysia. Some of their wood carvings (art) showed house pillars that also resembled latte stones. I had my DNA analyzed by 23andme.com and it showed my DNA as having a Malaysian and Melanisian mixture. It also showed the exact place in Borneo where some of my DNA is associated with our ancestors.
What we can say is that the pillars found on ancient reliefs in Java (Indonesia) resemble the latte stones but much more than that we can't say. Yes, DNA testing is recommended!