Using BOINC with Java applications

Use JSmooth

​JSmooth is an open-source tool for converting Java applications to Windows .exe files. To quote from their web site:

JSmooth is a Java Executable Wrapper. It creates native Windows launchers (standard .exe) for your Java applications. It makes Java deployment much smoother and user-friendly, as it is able to find any installed Java VM by itself. When no VM is available, the wrapper can automatically download and install a suitable JVM, or simply display a message or redirect the user to a web site.

Use a C++ wrapper program