You can find gcj http://gcc.gnu.org/java/ You can find towerj http://www.towerj.com/
TowerJ just realeased version 3.8 and it's supposed to have a smaller footprint. (You pay through the nose for it). Michael D. Schleif wrote: >Edgar Villanueva wrote: > >>There are a bunch of ways to do this with alot of constraints. >> >>More details would be required to answer this correctly. >> >>One way which may work is compiling the java application into native >>code with gcj. >> >>gcj is the gcc java compiler. >> >>There are some issues with this. gcj requires a library just like >>glibc. I think it's called libgcj or libjava. It's big.(Don't remember). >>But if you can add another native library that's ok. The other issue is >>that I don't think it's compatible with glibc. Maybe older version are. >>Not sure. But older versions may have problems with your application. >>Also, I am assuming you have bytecode and not source. >>Which I never really had good results with. >> > >I want to investigate this -- do you have any links? I really need to >know how big that new library is. > >>The other option is towerj. It compiles java code to c and then >>compiles that with gcc. >> > >This, too, is very interesting -- links? > >>These are the smallest options I can think of. Running things on a jvm >>other than one specificly for embedded systems will be large. >> >>Let me know if you specific questions and I will try to answer if I can. >> >>Otherwise you may want to start asking some questions on the gcj list. >> >>[EMAIL PROTECTED] >> >>I >> >>Michael D. Schleif wrote: >> >>>OK, first off, I'm clearly the newbie ;> >>> >>>[1] We design and build several lean & mean Linux-based network objects, >>>including firewalls and routers, all of which are currently running >>>glibc 2.0.7 compiled applications. >>> >>>[2] We have a requirement to run a third party application (JAR) on >>>these systems. We are told that this requires a minimum 1.1.8 java. >>> >>>[3] How can we accomplish this? >>> >>>[4] Size is a constraint! What is the smallest footprint that this can >>>take? >>> >>>[5] As newbies, we are also novices with the appropriate nomenclature >>>;> We assume that what we are talking about is the JRE -- is that >>>right? How can we catch up on the necessary terminology, short of >>>becoming out and out java experts? >>> >>>What do you think? >>> > >I found this as <http://www.blackdown.com/>: > > jre1.2pre-v2.tar.bz2 > >It works; but, it is *HUGE* -- 30 MB !?!? > >The application has no gui; it reads a specific configuration from a >local file, opens a particular port on a remote server, exchanges some >sort of authenticating handshake, encrypts a small data string (<1 MB), >according to a proprietary encryption algorithm, and shoves the >encrypted package onto the remote server. > >Actually, we are running non-java versions of this program on several >platforms (~182 kb Linux, glibc 2.2x). However, the owners of the code >keep the source to themselves and we now have requirements to run this >application on glibc 2.0x systems that run entirely in ramdisks. > >How much of that 30 MB can be cut out? What are all of these files? >What is necessary and what is not? > ---------------------------------------------------------------------- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
