Java and JNI in Linux

Hello Linux world !
I have a problem when i try to load a shared library in my java program.
My config is :
        Linux 64 bits
        jdk1.4.1
        compilers 64 bits : ecc (C language) and efc (Fortran)
When i build an application with this dynamic library, all is OK.
But when i launch my java application whith this same library, i get this 
error message :
Exception in thread "main" java.lang.UnsatisfiedLinkError: libTEST.so: 
libTEST.so: cannot open shared object file: No such file or directory
        at java.lang.ClassLoader$NativeLibrary.load(Native Method)
        at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1473)
        at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1397)
        at java.lang.Runtime.loadLibrary0(Runtime.java:788)
        at java.lang.System.loadLibrary(System.java:832)
        at TEST.<clinit>(TEST.java:3)

Could you help me ?
Thanks.