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Merge map properties to Java POJO

I’d like to implement UPDATE (method PUT) operation for REST api. From front-end application my controller method expects map of values, for example: I’d like to use map as the request body and not POJO because with help opf map I can declare 3 states for each property: property is absent in the map – property is not change, do

what’s the meaning of server.onDispose().block()?

There are few web pages about reactor-netty on the internet. And I don’t understand the meaning of some code below. These code below is just ABC of reactor-netty. But I really can not find more information on the internet. So I have to ask for help. Please help me with the five places in the code above. Thank you. Answer

Android RecyclerView on a null object reference

im trying to get Highscores from a File and display them in a RecyclerView. But im getting the following Error: I know that my scoreItems in arent empty. I dont know what i am doing wrong. I´m new in the Android World 🙂 Thanks for helping. My files: score_activity.java CustomAdapter.java activity_score_activity.xml recycler_style.xml Answer You mistype the recycler_style.xml, the id must

Errorin update variable [closed]

Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed 11 months ago. Improve this question i want update my variable and my code has a error that i

While loop doesn’t exit after file download

I’ve got the following code to download a file being transmitted over TCP: upload code: The upload exits its loop fine. Once all the bytes have been processed (they are always processed successfully, however the loop is never exited), the file is created, without a single issue, but, the loop doesn’t exit. Answer TCP/IP connections are designed to be long-lived

Spring Boot StackOverFlowError : Null

I have a problem when I want save repository by foreach loop . By Foreach loop user come and save it to another entity User.class public class Attendance { } User.class This is user class of User Entity Error show :: java.lang.StackOverflowError: null Answer Mixing what I saw in your code and what you said in comments I found the

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