C execve of $JAVA_HOME/jre/bin/java does not work

Question

I have a static executable (I don't want to link shared libraries for security reasons) which ultimately tries to execve the java executable in the JRE (Linux). Unfortunately I'm getting the following errors:
Error: could not find libjava.so
Error: could not find Java 2 Runtime Environment.
I've seen mention of these errors in other posts and have tried everything I can find (add stuff to PATH, CLASSPATH, LD_LIBRARY_PATH, JAVA_HOME, and more). Everything I've tried does not seem to do a lick of good. The execve function constructs an explicit environment, so I'm wondering if there is something basic that java needs in the environment that is inherited normally in a shell. I'm at a complete loss here. Any help would be appreciated. A very simple C program to reproduce this is pasted bellow.
#include <unistd.h>
void main(void)
char * arg[2];
char * env[10];
int i;
i=0;
arg[i++] = "-version";
arg[i] = NULL;
i=0;
//add any environment variables to env like...
//env[i++] = "LD_LIBRARY_PATH=<java_path>/jre/lib/i386/libjava.so";
env[i] = NULL;
execve("/usr/local/j2sdk_nb/j2sdk1.4.2/jre/bin/java", arg, env);
}

Answer 1

It fails because you do not set argv[0] to the path of the program you're calling.
Try:
#include <unistd.h>
int main()
char * arg[3];
char * env[10];
int i;
i=0;
// This is the big deal:
arg[i++] = "/usr/java/j2re1.4.2_02/bin/java";
arg[i++] = "-version";
arg[i++] = NULL;
i=0;
env[i++] = NULL;
execve("/usr/java/j2re1.4.2_02/bin/java", arg, env);
}