According to Ethnologue, there are 84,300,000 people in Indonesia who speak Javanese. The Wikipedia article on the Javanese script shows the positions of the characters of the script.
There are minimally 91 characters that need to be expressed in a font. It takes one person with the appropriate skills to create a font for Javanese. What they look like can be found here.
There is a request for a Javanese Wikisource but it would really make sense when the sources are expressed in the way the source are written. Is there nobody among the 84,300,000 Javanese who can create a font? Is there someone else who can help?