Attempt to invoke virtual method 'byte[] java.lang.String.getBytes()' on a null object reference error by get User Image method

Question

when I open my app and click the plus icon it get crash everytime

I think my get User Image method have some problem I've tried many times but it is not solving I have change the Base64 variable but still getting the error please someone get it solved I am wasting so many time on this errror

I change the Base64 java.util to Base64 android.util but still getting the same error

My error:

2022-03-20 01:12:31.696 7246-7246/? E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.chatapp, PID: 7246
    java.lang.NullPointerException: Attempt to invoke virtual method 'byte[] java.lang.String.getBytes()' on a null object reference
        at android.util.Base64.decode(Base64.java:120)
        at com.example.chatapp.adapters.UsersAdapters.getUserImage(UsersAdapters.java:66)
        at com.example.chatapp.adapters.UsersAdapters.access$000(UsersAdapters.java:18)
        at com.example.chatapp.adapters.UsersAdapters$UserViewHolder.setUserData(UsersAdapters.java:61)
        at com.example.chatapp.adapters.UsersAdapters.onBindViewHolder(UsersAdapters.java:39)
        at com.example.chatapp.adapters.UsersAdapters.onBindViewHolder(UsersAdapters.java:18)
        at androidx.recyclerview.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:7065)
        at androidx.recyclerview.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:7107)
        at androidx.recyclerview.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:6012)
        at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6279)
        at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6118)
        at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6114)
        at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2303)
        at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1627)
        at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1587)
        at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:665)
        at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4134)
        at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3851)
        at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4404)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at androidx.constraintlayout.widget.ConstraintLayout.onLayout(ConstraintLayout.java:1873)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1829)
        at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1673)
        at android.widget.LinearLayout.onLayout(LinearLayout.java:1582)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1829)
        at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1673)
        at android.widget.LinearLayout.onLayout(LinearLayout.java:1582)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
        at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
        at com.android.internal.policy.DecorView.onLayout(DecorView.java:1225)
        at android.view.View.layout(View.java:24475)
        at android.view.ViewGroup.layout(ViewGroup.java:7383)
        at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:4212)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:3647)
2022-03-20 01:12:31.697 7246-7246/? E/AndroidRuntime:     at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:2575)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:9910)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1010)
        at android.view.Choreographer.doCallbacks(Choreographer.java:809)
        at android.view.Choreographer.doFrame(Choreographer.java:744)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:995)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:246)
        at android.app.ActivityThread.main(ActivityThread.java:8544)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)

My Code:

package com.example.chatapp.adapters;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.Base64;
import android.view.LayoutInflater;
import android.view.ViewGroup;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import com.example.chatapp.databinding.ItemContainerUserBinding;
import com.example.chatapp.models.User;

import java.util.List;


public class UsersAdapters extends RecyclerView.Adapter<UsersAdapters.UserViewHolder> {

    private final List<User> users;

    public UsersAdapters(List<User> users) {
        this.users = users;
    }

    @NonNull
    @Override
    public UserViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        ItemContainerUserBinding itemContainerUserBinding = ItemContainerUserBinding.inflate(
                LayoutInflater.from(parent.getContext()),
                parent,
                false
        );
        return new UserViewHolder(itemContainerUserBinding);
    }

    @Override
    public void onBindViewHolder(@NonNull UsersAdapters.UserViewHolder holder, int position) {
        holder.setUserData(users.get(position));
    }

    @Override
    public int getItemCount() {
        return users.size();
    }


    class UserViewHolder extends RecyclerView.ViewHolder {

        ItemContainerUserBinding binding;

        UserViewHolder(ItemContainerUserBinding itemContainerUserBinding) {
            super(itemContainerUserBinding.getRoot());
            binding = itemContainerUserBinding;
        }

        //setting user data
        void setUserData(User user) {
            binding.textName.setText(user.name);
            binding.textEmail.setText(user.email);
            binding.imageProfile.setImageBitmap(getUserImage(user.image));
        }
    }

    private Bitmap getUserImage(String encodedImage) {
        byte[] bytes = Base64.decode(encodedImage, Base64.DEFAULT);
        return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
    }
}