[Swig-user] Problem with Java wrapper: java.lang.UnsatisfiedLinkError error

[Xavier M. <xa...@te...>]

Hi,
I've already managed to create a java wrapper of c code on linux, and 
also on windows, but using the code on Windows fails:

I've created the dll named "narecord.dll" and "narecord.lib", I've got a 
test program in java  which looks usual (as in the examples)

dll was created with :
gcc.exe -shared -dll -mno-cygwin -Wl,--out-implib,narecord.lib 
-D__WIN32__   -o narecord.dll OBJ_SHARED.x86-mingw32/narecord_wrap.o 
(others .o) (other .a)

but I've got the following error msg:

java code:

pstring_t = new pstring_t();

 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Exception in thread "main" java.lang.UnsatisfiedLinkError: 
narecordJNI.new_pstring_t()J
       at narecordJNI.new_pstring_t(Native Method)
       at pstring_t.<init>(pstring_t.java:46)
       at narecord_driver.main(narecord_driver.java:529)
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

ie the library seems to be correctly loaded (i guess) because the code

public class narecord_driver {
 static
 {
   try
   {
       System.loadLibrary("narecord");
   }
   catch (UnsatisfiedLinkError e)
   {
     System.err.println("Native code library failed to load. See the 
chapter on Dynamic Linking Problems in the SWIG Java documentation for 
help.\n" + e);
     System.exit(1);
   }
 }

does not throw any exception.

With the dll viewer "depends.exe" (dependancy walker) I can see that my 
function is indeed inside the dll
(well, it is named  "Java_narecordJNI_new_1pstring_1t@8" but I also 
guess it is correct) so what's wrong ?

Can anyone tell me what I'm doing wrong ?

many thanks in advance,

xm