security problems with Java applications -

i remember in past there tons of security concerns java applications. after many java updates, fixed lot of bugs , made more secure vulnerability still exists. there in particular can enhance security in java web applications?

tl;dr run them on server, or short answer - no.

any complex system has bugs. operating systems have bugs, physical hardware has bugs , virtual machines have bugs. there nothing (as application developer) can enhance security of environment run on. however, if wanted to, might run java environment on virtual machine. if disable writes hard-drive it's difficult image successful attack vector, it's possible has exploit re-enable it. basically, can run software trusted sources.