LOG4CXX_DEBUG macro fails when used in a shared object or .so file gcc

Hi All,
 
System specification:
Compiler- gcc
O.S     - Redhat Linux
 
Sub: Application crashes when try to log integer or short values.
 
I am using log4cxx in my jni codes which are compiled as a shared object (.so 
file). My application is able to print 
string values as shown in line 2 of the sample code but crahses when line 4 of 
the code is excuted.
I found that when I use the same code in an excutable there is no problem.

Can some body tell me what difference does the #define macro for LOG4CXX_DEBUG 
makes for a shared object to that of
an executable.

sample code...
1)string str1 = "this is devender ";
2)LOG4CXX_DEBUG(loggerx, _T("MSG ") << str1);
3)int i = 0;
4)LOG4CXX_DEBUG(loggerx, _T("MSG ") << i++);
 
I appreciate every body for taking ur precious time in looking at my email.
Sincierly
Marri Devender Rao