centos7下使用JNA调用.so文件的问题

Question

public class CalProcess
{

public interface CLibrary extends Library {
    CLibrary INSTANCE = (CLibrary)
        Native.loadLibrary((Platform.isWindows() ? "CalProcess" : "cal_process"),
                           CLibrary.class);
    byte Cal_data(short key,byte data);
}

public static void main(String[] args)
{
    int i = CLibrary.INSTANCE.Cal_data((short)5,(byte)2);
    System.out.println(i);
}

}

以上为JNA部分的代码；

.so的头文件如下：

#ifndef __CAL_PROCESS_INCLUDED__
#define __CAL_PROCESS_INCLUDED__
#include <stdint.h>
uint8_t Cal_data(uint16_t key,uint8_t data);

#endif // __CAL_PROCESS_INCLUDED__

在centos7中运行，结果报：
Could not initialize class com.xxx.xxx.socket.dll.CalProcess$CLibrary

表示不能理解这是啥错，求救~~~