java to native code and Sun JVM alternatives

wagde <[email protected]>
Newsgroups gmane.comp.gcc.java.devel
Message-ID <[email protected]>
Hi

I'm working on a project which have java code (and c++), and until ow I used
javac to compile the code and java to run the classes and JNI to call java
from c++ code.

I don't want to use javac, javah, and java, ...(sun stuff) because of
royalties issues...

I'm looking for alternatives.

What I see right now are two alternatives:
1. compile my java code to native code using gcj, and link it with the c++
code.
2. keep the classes and use the gij instead of java.

I start working on the two approaches in parallel and I'm having too many
problems in both them. So I need some REAL help here.

Problem with 1.
1. I succeeded to compile my java code (after chaning the syntax) using gcj
to linux "c" object files. But in the linkage to the binary, I got too many
"undefined reference to", ... because I use external "jars" (like axis)
which are not compiled to native. I try to compile the axis jar to c and get
too many compilation errors.

Problem with 2.
I compiled all my classes with gcj. and the C code uses JNI to call it. But
the JNI creates a JVM (JNI_CreateJavaVM)!!! which I don't want to use. I
want to use gij instead. So I wanted to know if there is anyway to let my
JNI code to ceate a gij VM and and java VM. is there anything like this ?!
If not, how can I use the classes I compiled with gcj from the c code
without using the JAVA VM?
CNI? does that mean that I should convert my jni code to cni?

Any idea/help/new approaches are welcome!

Thanx
Wagde
-- 
View this message in context: http://old.nabble.com/java-to-native-code-and-Sun-JVM-alternatives-tp27862420p27862420.html
Sent from the gcc - java mailing list archive at Nabble.com.
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.