我在结构中定义jna结构时遇到以下异常：
线程“main”java.lang.error中出现异常：类com.myinterface$mine$byreference上的structure.getfieldorder（）返回与声明的字段名不匹配的名称（[color，data，hello，rice，str，wild]）
查看我的cpp结构：

typedef struct s_mine
{
    e_color           color;    //e_color is enum type made of int values
    his               data;        
    int               str;        
    unsigned int      wild;         
    unsigned int      hello;        
    float             rice; 
} mine;

typedef struct s_his
{
    unsigned char * data; 
    unsigned int    size; 
} his;

请参见下面的示例，即myinterface.java：

public interface MyInterface extends Library {

    public static class his extends Structure {
        public static class ByReference extends his implements Structure.ByReference {} // Need the stucture address as it a parameter of a particular wrapped method
        public static class ByValue extends his implements Structure.ByValue {}         // Need the structure value inside "mine" Structure
        public Pointer data;
        public int size;
        @Override
        protected List<String> getFieldOrder() {
            return Arrays.asList(new String[] { "data", "size"});
        }
    }

    public class mine extends Structure {
        public static class ByReference extends mine implements Structure.ByReference {}
        int color; 
        his.ByValue data;
        int str; 
        int wild; 
        int hello; 
        float rice;

        @Override
        protected List<String> getFieldOrder() {
            return Arrays.asList(new String[] {"color","data","str","wild","hello","rice"});
        }
    }
}

使用myinterface的主类包含以下行，在该行上我有一个关于“mine”结构字段顺序的异常：

final MyInterface.mine.ByReference mine_ref = new MyInterface.mine.ByReference();

因此，我调试代码，以便将jna以下structure.class步进以下getfields方法（在其中我得到异常（下面的第二个异常）：

protected List<Field> getFields(boolean force) {
        List<Field> flist = getFieldList();
        Set<String> names = new HashSet<String>();
        for (Field f : flist) {
            names.add(f.getName());
        }

        List<String> fieldOrder = fieldOrder();
        if (fieldOrder.size() != flist.size() && flist.size() > 1) {
            if (force) {
                throw new Error("Structure.getFieldOrder() on " + getClass()
                                + (fieldOrder.size() < flist.size()
                                    ? " does not provide enough"
                                    : " provides too many")
                                + " names [" + fieldOrder.size()
                                + "] ("
                                + sort(fieldOrder)
                                + ") to match declared fields [" + flist.size()
                                + "] ("
                                + sort(names)
                                + ")");
            }
            return null;
        }

        Set<String> orderedNames = new HashSet<String>(fieldOrder);
        if (!orderedNames.equals(names)) {
            throw new Error("Structure.getFieldOrder() on " + getClass()
                            + " returns names ("
                            + sort(fieldOrder)
                            + ") which do not match declared field names ("
                            + sort(names) + ")");
        }

        sortFields(flist, fieldOrder);
        return flist;
    }

这是当getfields方法中引发异常时，我在探索以下字段值时得到的结果

fieldOrder = [color, data, str, wild, hello, rice]
orderedNames = [str, color, data, hello, rice, wild]

由于名称为空，引发了异常。无论如何，由于hashset java.util类不能保证随着时间的推移顺序保持不变，我肯定认为jna structure.java中存在bug。因为我的fieldorder的顺序是按照 new HashSet<String>(fieldOrder) 指令，因此不同于orderednames的顺序。
有没有人同意我的观点，或者我遗漏了一些关于如何声明和使用我的jna结构的内容？
如果没有bug（即hashset是故意使用的……），那么我是否在声明我的结构时出错了？我如何解决这个问题？