Linux,Tomcat: unhandled exception in a native code Library

[All772]

Hallo,
please help me...
I recieve an unhandled exception in my native code Library that I wrote at first in Delphi on windows, then migrate it on Lazarus under windows as *.dll and then migrate it on Lazarus (FreePascal) under Linux as *.so module.
I call the library functions (native code) from java using JNI.pas for
Java-->Delphi :
http://home.pacifier.com/~mmead/jni/delphi/

Under Windows it runs good in tomcat 6, but under Linux it runs only in a small test program, but in tomcat I recieve sporadic an "Unhandled Exception: AccessViolationException at Address xy".

The problem, that I have, depends may be on garbadge collector or shared memory (java and native code libraries).
Is it a problem of UTF-8 format, that linux has as default?
Have you any idea or experience with JNI and native libraries on Linux?
Is it the problem of Lazarus or Lazarus compiler setting?
Thanks

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