# GiwsException::JniCallMethodException on FreeBSD **URL:** \ **Category:** Development\ **Created:** [July 8, 2025, 8:29pm UTC](https://scilab.discourse.group/t/giwsexception-jnicallmethodexception-on-freebsd/1001 "2025-07-08T20:29:56Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Thierry](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/thierry/32/892_2.png) [@Thierry](https://scilab.discourse.group/u/Thierry)\ **Post date:** [July 8, 2025, 8:29pm UTC](https://scilab.discourse.group/t/giwsexception-jnicallmethodexception-on-freebsd/1001/1 "2025-07-08T20:29:56Z")
Hello, I managed to compile Scilab on FreeBSD, and scilab-cli works OK, but scilab-adv-cli aborts with the following error: ```auto Terminating due to uncaught exception 0x3e8ea72db700 of type GiwsException::JniCallMethodException A fatal error has been detected by Scilab. Please check your user-defined functions (or external module ones) should they appear in the stack trace. ``` The output of getdebuginfo is: ```auto Scilab branch-2025.1 (Jul 3 2025, 22:32:47) --> [a, b] = getdebuginfo() a = [5x1 string] "Total free memory: 21528576" "Total memory: 33374208" "SCI: /usr/local/share/scilab/" "SCIHOME: /home/thierry/.Scilab/scilab-branch-2025.1" "TMPDIR: /tmp/SCI_TMP_75663_USFRHR" b = [6x1 string] "Scilab Version: scilab-branch-2025.1" "Compilation date: Jul 3 2025" "Compilation time: 22:32:47" "Compileur version: FreeBSD Clang 19.1.7 (https://github.com/llvm/llvm-project.git llvmorg-19.1.7-0-gcd708029e0b2)" "XML version: 2.11.9" "Compiler Architecture: X64" ``` But there is no StackTrace: how could I enable it? ---
**Author:** ![mottelet](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/mottelet/32/13_2.png) [@mottelet](https://scilab.discourse.group/u/mottelet)\ **Post date:** [July 9, 2025, 6:46am UTC](https://scilab.discourse.group/t/giwsexception-jnicallmethodexception-on-freebsd/1001/2 "2025-07-09T06:46:06Z")
Hello, Can you give the output you get when you run the configure script ? S. ---
**Author:** ![Thierry](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/thierry/32/892_2.png) [@Thierry](https://scilab.discourse.group/u/Thierry)\ **Post date:** [July 9, 2025, 7:21am UTC](https://scilab.discourse.group/t/giwsexception-jnicallmethodexception-on-freebsd/1001/3 "2025-07-09T07:21:21Z")
“Sorry, new users can not upload attachments.” I uploaded it to [https://people.freebsd.org/~thierry/config.log](https://people.freebsd.org/~thierry/config.log) . Thanks for taking care. ---
**Author:** ![mottelet](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/mottelet/32/13_2.png) [@mottelet](https://scilab.discourse.group/u/mottelet)\ **Post date:** [July 9, 2025, 7:36am UTC](https://scilab.discourse.group/t/giwsexception-jnicallmethodexception-on-freebsd/1001/4 "2025-07-09T07:36:45Z")
OK thanks, I just wanted to check that you were using Java17. Another point: we stick to clang-16 for the macOS build (I saw that you are using clang-19). Anyway can you launch scilab-adv-cli in `lldb`, in order to see where the exception occurs ? S. ---
**Author:** ![Thierry](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/thierry/32/892_2.png) [@Thierry](https://scilab.discourse.group/u/Thierry)\ **Post date:** [July 9, 2025, 4:00pm UTC](https://scilab.discourse.group/t/giwsexception-jnicallmethodexception-on-freebsd/1001/5 "2025-07-09T16:00:30Z")
It runs until ./modules/jvm/src/c/JVM\_commons.c:52, at the line ` return (ptr_JNI_CreateJavaVM)(jvm, penv, args);` and then it enters into libjvm.so, for which I have no debug code! The error occurs just after a return code: ```auto frame #0: 0x00000ae49a5a7e75 ld-elf.so.1`_rtld_bind_start at rtld_start.S:158 155 popfq # Restore rflags 156 .cfi_adjust_cfa_offset -8 157 leaq 16(%rsp),%rsp # Discard spare, obj, do not change rflags -> 158 ret # "Return" to target address 159 .cfi_endproc 160 .size _rtld_bind_start, . - _rtld_bind_start 161 ``` ```auto Process 4996 stopped * thread #1, name = 'scilab-bin', stop reason = signal SIGSEGV: address not mapped to object (fault address: 0x0) frame #0: 0x000000088bd4762d -> 0x88bd4762d: movl (%rsi), %eax 0x88bd4762f: leaq 0x30(%rbp), %rsi 0x88bd47633: movl $0x10000, %eax ; imm = 0x10000 0x88bd47638: andl 0x4(%rsi), %eax ``` I have no experience with JNI, and no clue about these messages! I could rebuild OpenJDK with debug symbols, but I prefer to avoid it… Have you already encountered such an error on other platforms? ---
**Author:** ![Thierry](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/thierry/32/892_2.png) [@Thierry](https://scilab.discourse.group/u/Thierry)\ **Post date:** [July 12, 2025, 2:47pm UTC](https://scilab.discourse.group/t/giwsexception-jnicallmethodexception-on-freebsd/1001/6 "2025-07-12T14:47:48Z")
Ad read in [Scilab works on my system - linux mint 21.2, but it gives a GLException, can I fix this? - #2 by mottelet](https://scilab.discourse.group/t/scilab-works-on-my-system-linux-mint-21-2-but-it-gives-a-glexception-can-i-fix-this/301/2) I tried ```auto export _JAVA_OPTIONS='-Djogl.disable.opengles' ``` and then ```auto export LIBGL_ALWAYS_SOFTWARE=true scilab ``` Without success: same error `Terminating due to uncaught exception 0x362a1cac0700 of type GiwsException::JniCallMethodException` ---
**Author:** ![Thierry](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/thierry/32/892_2.png) [@Thierry](https://scilab.discourse.group/u/Thierry)\ **Post date:** [July 14, 2025, 4:57pm UTC](https://scilab.discourse.group/t/giwsexception-jnicallmethodexception-on-freebsd/1001/7 "2025-07-14T16:57:53Z")
Out of curiosity, I imported giws and tested the option `--enable-build-giws`: same error. Remark: giws taken from [GitHub - opencollab/giws: A wrapper generator to generate C++ mapping Java classes](https://github.com/opencollab/giws) at version 3.0.0, which identifies itself as 2.0.2, but Scilab’s configure wants 1.3.0.