This problem is present in all JDK versions containing the code described below, so backporting is needed.

This applies applies to 32 bit Solaris: both sparc and x86. There is no problem with 64 bit Solaris.

Function SplashEventLoop in ./solaris/native/sun/awt/splashscreen/splashscreen_sys.c uses FD_SET in two places on local array var fds, which only contains 2048 bits. If this code is executed with a descriptor-intensive application on a Solaris system configured to support greater than 2048 descriptors, the FD_SET usage will cause corruption of a caller's stack frame. Either poll must be used instead of select, or else FD_SETSIZE must be made 65536 when this module is compiled.

See the select(3c) Solaris manpage and case PSARC/1997/110 for more details.

The code in question is listed below:

void
SplashEventLoop(Splash * splash) {

    /*      Different from win32 implementation - this loop
       uses select timeouts instead of a timer */
    /* we should have splash _locked_ on entry!!! */

    int xconn = XConnectionNumber(splash->display);

    while (1) {
        int ctl = splash->controlpipe[0];
        fd_set fds[2];
        int n = 0;
        struct timeval tv, *ptv;
        int rc;
        int time;
        int pipes_empty;

        FD_ZERO(fds);
        FD_SET(xconn, fds);
        ^^^^^^^^^^^^^^^^^^^ not sure if xconn
        if (xconn+1 > n)
            n = xconn+1;
        FD_SET(ctl, fds);