Классы со сборщиком GSON возвращают NULL членов

Question

У меня есть приложение, которое извлекает данные с сервера и использует GSON, чтобы заполнить их в представлении переработчика. Отладочная версия с minifyEnabled false прекрасно работает, но когда она установлена ​​в значение true, она возвращает нулевые данные из класса Model, я добавила правила proguard для gson и даже для этого класса, но не работающие

правила proguard

# This is a configuration file for ProGuard.
# http://proguard.sourceforge.net/index.html#manual/usage.html
#### -- Picasso --
-dontwarn com.squareup.picasso.**

 #### -- OkHttp --

-dontwarn com.squareup.okhttp.internal.**

 #### -- Apache Commons --

-dontwarn org.apache.commons.logging.** 
-ignorewarnings
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-verbose
-printusage
-optimizations !code/simplification/arithmetic,!code/simplification/cast,!field/*,!class/merging/*
-optimizations !method/inlining/*
-optimizationpasses 5
-allowaccessmodification
#-assumenosideeffects class android.util.Log{
#public static *** d(...);
#public static *** i(...);
#public static *** v(...);
#}

# Gson uses generic type information stored in a class file when working with
#fields. Proguard removes such information by default, so configure it to keep
#all of it.
-keepattributes Signature

# For using GSON @Expose annotation
-keepattributes *Annotation*

# Gson specific classes
-keep class sun.misc.Unsafe { *; }
-keep class com.google.gson.stream.** { *; }

# Application classes that will be serialized/deserialized over Gson
-keep class com.google.gson.examples.android.model.** { *; }

-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet);
}

-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet, int);
}

-keep public class * implements com.bumptech.glide.module.GlideModule
-keep public class * extends com.bumptech.glide.module.AppGlideModule
-keep public enum com.bumptech.glide.load.ImageHeaderParser$** {
  **[] $VALUES;
  public *;
}

-keepclassmembers class * extends android.app.Activity {
   public void *(android.view.View);
}

-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}

-keep class * implements android.os.Parcelable {
  public static final android.os.Parcelable$Creator *;
}

-keep class com.shockwave.**

-keepclassmembers class **.R$* {
    public static <fields>;
}

-keep class net.sqlcipher.** {
    *;
}
#-keep class com.google.gson.stream.** { *; }
-keep class com.udaan.recstudentportalV2.NoticeAct { *; }
-keep class com.udaan.recstudentportalV2.Notice { *; }
-keep class com.udaan.recstudentportalV2.NoticeAdapter { *; }
-keep class com.udaan.recstudentportalV2.NoticePojo { *; }

-keep class com.uddan.recstudnetportalV2.Gallery {*;}
-keep class com.uddan.recstudnetportalV2.Album
-keep class com.uddan.recstudnetportalV2.AlbumImageAdapter {*;}
-keep class com.uddan.recstudnetportalV2.AlbumImage
-keep class com.uddan.recstudnetportalV2.AlbumAdapter {*;}
-keep class com.uddan.recstudnetportalV2.AlbumViewActivity {*;}

-keep class com.udaan.recstudentportalV2.Question { *; }
-keep class com.udaan.recstudentportalV2.QuestionAct { *; }
-keep class com.udaan.recstudentportalV2.QuestionDisplay { *; }
-keep class com.udaan.recstudentportalV2.QuestionPojo { *; }
-keep class com.udaan.recstudentportalV2.Questions { *; }

-keep class com.udaan.recstudentportalV2.Result { *; }
-keep class com.udaan.recstudentportalV2.ResultAct { *; }
-keep class com.udaan.recstudentportalV2.ResultAdapter { *; }
-keep class com.udaan.recstudentportalV2.ResultDisplay { *; }
-keep class com.udaan.recstudentportalV2.ResultPojo { *; }

-keep class com.udaan.recstudentportalV2.Assignment { *; }
-keep class com.udaan.recstudentportalV2.AssignmentAct { *; }
-keep class com.udaan.recstudentportalV2.AssignmentAdapter { *; }
-keep class com.udaan.recstudentportalV2.AssignmentDisplay { *; }
-keep class com.udaan.recstudentportalV2.AssignmentPojo { *; }

-keep class com.udaan.recstudentportalV2.Syllabus { *; }
-keep class com.udaan.recstudentportalV2.SyllabusAct { *; }
-keep class com.udaan.recstudentportalV2.SyllabusAdapter { *; }
-keep class com.udaan.recstudentportalV2.SyllabusDisplay { *; }
-keep class com.udaan.recstudentportalV2.SyllabusPojo { *; }

-keep class com.udaan.recstudentportalV2.Notes { *; }
-keep class com.udaan.recstudentportalV2.NotesAct{ *; }
-keep class com.udaan.recstudentportalV2.NotesAdapter { *; }
-keep class com.udaan.recstudentportalV2.NotesDisplay { *; }
-keep class com.udaan.recstudentportalV2.NotesPojo { *; }

-keep class com.udaan.recstudentportalV2.Success { *; }
-keep class com.udaan.recstudentportalV2.SuccessAct { *; }
-keep class com.udaan.recstudentportalV2.SuccessAdapter { *; }
-keep class com.udaan.recstudentportalV2.SuccessPojo { *; }

-keep class com.udaan.recstudentportalV2.Likes { *; }
-keep class com.udaan.recstudentportalV2.Comments { *; }
-keep class com.udaan.recstudentportalV2.CommentAdapter { *; }
-keep class com.udaan.recstudentportalV2.CommentModel { *; }
-keep class com.udaan.recstudentportalV2.NewsfeedFragment { *; }
-keep class com.udaan.recstudentportalV2.Newsfeed { *; }
-keep class com.udaan.recstudentportalV2.Newsfeed_data { *; }
-keep class com.udaan.recstudentportalV2.NewsfeedAdapter { *; }
-keep class com.udaan.recstudentportalV2.NewsfeedPojo { *; }


-keep class com.udaan.recstudentportalV2.TeamUdaan { *; }
-keep class com.udaan.recstudentportalV2.Members { *; }
-keep class com.udaan.recstudentportalV2.MembersPojo { *; }
-keep class com.udaan.recstudentportalV2.UdaanAdapter { *; }
-keep class com.udaan.recstudentportalV2.UdaanFounterAdapter { *; }

-keep class com.udaan.recstudentportalV2.Complain { *; }



# Application classes that will be serialized/deserialized over Gson
-keep class com.google.gson.examples.android.model.** { *; }


# Prevent proguard from stripping interface information from TypeAdapterFactory,
# JsonSerializer, JsonDeserializer instances (so they can be used in @JsonAdapter)
-keep class * implements com.google.gson.TypeAdapterFactory
-keep class * implements com.google.gson.JsonSerializer
-keep class * implements com.google.gson.JsonDeserializer

Album. java

package com.udaan.recstudentportalV2;


import com.google.gson.annotations.SerializedName;

public class Album {

    @SerializedName("id")
    private String id;
    @SerializedName("category")
    private String category;
    @SerializedName("headphoto")
    private String headphoto;
    @SerializedName("catName")
    private String catName;

    public Album(String id, String category, String headphoto, String catName) {
        this.id = id;
        this.category = category;
        this.headphoto = headphoto;
        this.catName = catName;
    }

    public Album(){

    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getCategory() {
        return category;
    }

    public void setCategory(String category) {
        this.category = category;
    }

    public String getHeadphoto() {
        return headphoto;
    }

    public void setHeadphoto(String headphoto) {
        this.headphoto = headphoto;
    }

    public String getCatName() {
        return catName;
    }

    public void setCatName(String catName) {
        this.catName = catName;
    }
}

AlbumAdapter. java

package com.udaan.recstudentportalV2;

import android.content.Context;
import android.content.Intent;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.bumptech.glide.Glide;
import com.udaan.recstudentportalV2.util.UrlManager;

public class AlbumAdapter extends RecyclerView.Adapter<AlbumAdapter.ViewHolder> {
    UrlManager urlManager = new UrlManager();
    private Context context;
    private  Album[] data;
    public AlbumAdapter(Context context, Album[] data){
        this.context=context;
        this.data=data;
        //Log.i("HEADPHOTO",data[1].toString());

    }
    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
        LayoutInflater inflater = LayoutInflater.from(viewGroup.getContext());
        View view= inflater.inflate(R.layout.rv_row,viewGroup,false);
        Log.i("Holder","Created");
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull final ViewHolder viewHolder, int i) {

        String url=urlManager.getBaseUrl();
        //Log.i("Album",data[i].getHeadphoto());
        final Album album = data[i];
        //Log.i("Album",album.getHeadphoto());
        viewHolder.albumTextView.setText(album.getCategory());
        Glide.with(viewHolder.albumImageView.getContext()).load(url+album.getHeadphoto()).into(viewHolder.albumImageView);
        viewHolder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(context,album.getCategory()+" Was Clicked",Toast.LENGTH_SHORT).show();
                Intent intent = new Intent(v.getContext(), AlbumViewActivity.class);
                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                intent.putExtra("albumId",album.getCategory());
//                Log.i("CAT",""+album.getCategory());
//                Log.i("CAT",""+album.getId());
//                Log.i("CAT",""+album.getHeadphoto());
//                Log.i("CAT",""+album.getCatName());
                context.startActivity(intent);
            }
        });
    }


    @Override
    public int getItemCount() {
        return data.length;
    }

    //    VIEW HOLDER CLASS
    public class ViewHolder extends RecyclerView.ViewHolder {
        ImageView albumImageView;
        TextView albumTextView;
        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            albumImageView = itemView.findViewById(R.id.iv_album_img);
            albumTextView= itemView.findViewById(R.id.tv_album_name);
            Log.i("ViewHolder","DataSet");
        }
    }
}

Деятельность Галереи

package com.udaan.recstudentportalV2;


import android.os.Bundle;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.util.Log;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.Toast;

import com.android.volley.Cache;
import com.android.volley.Network;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;

import com.android.volley.cache.DiskBasedCache;
import com.android.volley.error.VolleyError;
import com.android.volley.request.StringRequest;
import com.android.volley.toolbox.BasicNetwork;
import com.android.volley.toolbox.HurlStack;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.udaan.recstudentportalV2.util.UrlManager;


public class Gallery extends AppCompatActivity {
    UrlManager urlManager = new UrlManager();
    RecyclerView albumrv;
    ProgressBar p;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_gallery);
        // mTv=findViewById(R.id.test);
        albumrv = findViewById(R.id.RV_main_Activity);
        albumrv.setLayoutManager(new LinearLayoutManager(this));
        p = findViewById(R.id.gal_p);
        mGetAdminData();

    }

    protected void mGetAdminData() {
//        final ProgressDialog progressDialog = new ProgressDialog(getApplicationContext());
//        progressDialog.setMessage("Getting Albums...");
//        progressDialog.show();
        RequestQueue requestQueue;
        Cache cache = new DiskBasedCache(getCacheDir(), 1024 * 1024);
        Network network = new BasicNetwork(new HurlStack());
        requestQueue = new RequestQueue(cache, network);
        requestQueue.start();
        String url = "https://example.com/gallery/getGalleryAlbum.php";
        StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        Log.i("Gallery Response",response);
                        p.setVisibility(View.GONE);
                        GsonBuilder gsonBuilder = new GsonBuilder();
                        Gson gson = gsonBuilder.create();
                        Album[] album = gson.fromJson(response, Album[].class);
                        albumrv.setAdapter(new AlbumAdapter(getApplicationContext(), album));
                        Log.i("Gallery Response","Adapter set");
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        Toast toast = Toast.makeText(getApplicationContext(), "Failed," + error.toString(), Toast.LENGTH_LONG);
                        toast.show();

                    }
                });
        requestQueue.add(stringRequest);

    }
}

Пожалуйста, помогите, я потратил на это весь свой день, любая помощь будет отличной.