Last August, the Java creator said it intended toprogramming language and associated software.
On Friday,said Sun is "on plan" and intends to release significant pieces of the Java platform in the fourth quarter of this year.
"We did it with Java Enterprise Edition (server) with, and we will be doing it with Java Standard Edition and Java Micro Edition, which is pretty exciting," he said.
By releasing the source code to Java Standard Edition, the software to run desktop Java programs, and Java Micro Edition for handheld devices, Sun hopes to invite more developers to build products with Java.
Sun also intends to eventually release its Java Enterprise System, its Java server software suite, to open source.
Separately, Green said Sun is developing "tailored solutions" around its Solaris operating system along the lines of what it did with its.
"Historically, when (you) think of network-attached storage, you see it implemented as a closed system, and there is an inability to innovate on top," Green said.
Its storage server brings commodity hardware economics to that market, which Sun will be pursuing in other areas, he said.
"There are whole industries whose business models and margins are based on proprietary value," Green said, declining to specify which product areas Sun is eyeing in particular. "That is not going to be the case for much longer."
Sun is targeting hardware companies and software developers that could build products on top of, he added.
Rather than build custom chips, Sun hopes that these partners will use OpenSolaris, which runs on commodity servers and desktops.