In C&P4, Eliot states S. lilaea only extend to Neomalaya (ie Sumatra ,Malaya & Borneo) excluding Java.
This means the species in Java is S. hippoclus.
This is also stated in Funet. http://ftp.funet.fi/index/Tree_of_li...e/symbrenthia/
The range of S. h. javanus include Java ,Bali & Borneo.