In-App purchasing demo | Qt 6.4

- Qt 6.4
- In-App purchasing demo
- Qt 6.4.1 Reference Documentation

# In-App purchasing demo

     /* Copyright (c) 2012 Google Inc.
      * Copyright (c) 2015 The Qt Company Ltd.
      *
      * Licensed under the Apache License, Version 2.0 (the "License");
      * you may not use this file except in compliance with the License.
      * You may obtain a copy of the License at
      *
      *     http://www.apache.org/licenses/LICENSE-2.0
      *
      * Unless required by applicable law or agreed to in writing, software
      * distributed under the License is distributed on an "AS IS" BASIS,
      * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      * See the License for the specific language governing permissions and
      * limitations under the License.
      */

     package org.qtproject.qt.android.purchasing;

     /**
      * Exception thrown when encountering an invalid Base64 input character.
      *
      * @author nelson
      */
     public class Base64DecoderException extends Exception {
         public Base64DecoderException() {
             super();
         }

         public Base64DecoderException(String s) {
             super(s);
         }

         private static final long serialVersionUID = 1L;
     }