Java HotSpot Virtual Machine

i am using netbeans 6.5 IDE on ubuntu
i have made the .so file for following c code
int add(int a,int b){
return(a+b);
}


and when i try to load this libarary(.so file ) i get the following exception
java.lang.UnsatisfiedLinkError: Unable to load library

my java code is


import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.Platform;

/** Simple example of native library declaration and usage. */
public class HelloWorld {

public interface CLibrary extends Library {

CLibrary INSTANCE = (CLibrary)
Native.loadLibrary("temp",CLibrary.class);


int add(int a,int b);
}

public static void main(String[] args) {

int b = CLibrary.INSTANCE.add(2, 3);
System.out.println(b);
}



error

Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load library 'temp': libtemp.so: cannot open shared object file: No such file or directory
at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:114)
at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:157)
at com.sun.jna.Library$Handler.<init>(Library.java:123)
at com.sun.jna.Native.loadLibrary(Native.java:260)
at com.sun.jna.Native.loadLibrary(Native.java:246)
at helloworljna.HelloWorld$CLibrary.<clinit>(HelloWorld.java:22)
at helloworljna.HelloWorld.main(HelloWorld.java:31)
Java Result: 1

i 've use following command to set path


export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda/lib


pls tell how to solve