Java.exe使用哪个JRE

/*
 * Find path to JRE based on .exe's location or registry settings.
 */
jboolean
GetJREPath(char *path, jint pathsize)
{
    char javadll[MAXPATHLEN];
    struct stat s;

    if (GetApplicationHome(path, pathsize)) { //If path is "c:\foo\bin\java", then application home is  "c:\foo".
        /* Is JRE co-located with the application? */
        sprintf(javadll, "%s\\bin\\" JAVA_DLL, path);
        if (stat(javadll, &s) == 0) {
            goto found;
        }

        /* Does this app ship a private JRE in <apphome>\jre directory? */
        sprintf(javadll, "%s\\jre\\bin\\" JAVA_DLL, path);
        if (stat(javadll, &s) == 0) {
            strcat(path, "\\jre");
            goto found;
        }
    }

    /* Look for a public JRE on this machine. Find path in registry. */
    if (GetPublicJREHome(path, pathsize)) {
        goto found;
    }

    fprintf(stderr, "Error: could not find " JAVA_DLL "\n");
    return JNI_FALSE;

 found:
    if (_launcher_debug)
      printf("JRE path is %s\n", path);
    return JNI_TRUE;
}