问Android clazz.getConstructors()返回错误数量的构造函数，仅在实时应用程序中

EN

public class WifiScanning extends AbstractSetting {


/**
 * 
 */
private static final long serialVersionUID = 226897434530036069L;


public WifiScanning(Object valueToApply) {
    super(valueToApply, WifiScanning.class);
}

/**
 * For persistence only
 */
public WifiScanning() {
    super(null, WifiScanning.class);
}

/**
 * 
 * @param setting
 * @param ctx
 * @return
 * @throws SettingException
 */
private synchronized static AbstractSetting getOriginalSetting(AbstractSetting setting, 
        Context ctx) throws SettingException {

    Class<? extends AbstractSetting> clazz = setting.getClass();
    try {
        Constructor<?>[] constructors = clazz.getDeclaredConstructors();
        for (Constructor<?> c : constructors) {
            if(c.getParameterTypes().length == 1) {
                Object original = setting.getCurrentSettingValue(ctx);
                LOG.debug("Caching original value '"+original+"' for "+clazz.getSimpleName());
                return (AbstractSetting) c.newInstance(original);
            }
        }

        /*
         * ###################### DEBUG BLOCK ######################
         * 
         * This has been put here to work out why we are getting to this point in the code when
         * using WifiScanning.java
         */
        LOG.error("There are "+constructors.length+" constructors for "+clazz.getName()+" which we got from "+setting);
        for (Constructor<?> c : constructors) {
            if(c.getParameterTypes().length == 1) {
                LOG.debug("Found the consructor! How the hell can that be?");
            }
            else {
                LOG.error("Unusable constructor: "+c.toGenericString());
                LOG.error("From: "+c.getDeclaringClass());
                LOG.error("Modifiers:");
                LOG.error("private="+Modifier.isPrivate(c.getModifiers()));
                LOG.error("protected="+Modifier.isProtected(c.getModifiers()));
                LOG.error("public="+Modifier.isPublic(c.getModifiers()));
                LOG.error("static="+Modifier.isStatic(c.getModifiers()));

                Type[] genericParameterTypes = c.getGenericParameterTypes();
                LOG.error("Constructor has "+genericParameterTypes.length+" generic parameter types");
                for (Type type : genericParameterTypes) {
                    LOG.error("Generic parameter type: "+type.getClass().getName());
                }

                Class<?>[] parameterTypes = c.getParameterTypes();
                LOG.error("Constructor has "+parameterTypes.length+" parameters");
                for (Class<?> arg1 : parameterTypes) {
                    LOG.error("Constructor arg: "+arg1.getName());
                }
            }
        }
        /*
         * ###################### END DEBUG BLOCK ######################
         */

        throw new SettingException(clazz+" does not have a constructor with a single argument");