I am creating a standalone java application, application will be used by novice users, we will be sharing a set of error codes for trouble shooting the application. The requirement is to customize the error message, if the spring boot application failed to start with errors.

package com.example.Study.Hall.Management.controller; import com.example.Study.Hall.Management.model.Student; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.xssf.usermodel.XSSFWorkbook; import org.springframework.batch.core.Job; import org.springframework.batch.core.Step; import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing; import org.springframework.batch.core.job.builder.JobBuilder; import org.springframework.batch.core.launch.support.RunIdIncrementer; import org.springframework.batch.core.repository.JobRepository; import org.springframework.batch.core.repository.support.MongoJobRepositoryFactoryBean; import org.springframework.batch.core.step.builder.StepBuilder; import org.springframework.batch.item.ItemProcessor; import org.springframework.batch.item.ItemReader; import org.springframework.batch.item.ItemWriter; import org.springframework.batch.item.data.MongoItemWriter; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.data.mongodb.MongoDatabaseFactory; import org.springframework.data.mongodb.MongoTransactionManager; import org.springframework.data.mongodb.core.MongoTemplate; import org.springframework.transaction.PlatformTransactionManager; import java.io.FileInputStream; import java.io.IOException; import java.time.LocalDate; @Configuration @EnableBatchProcessing public […]

I have to add handling of new version of external API for one of clients. So we had beans with @Component annotation had additional annotation:

Is it possible to disable login-menu, which explained [here|https://www.baeldung.com/spring-security-5-oauth2-login] and a lot of another places.

I defined this scheduled task:

About Spring Boot for starters exists the Build Systems – Starters section where shows the following tables:

I’m new with spring boot. I follow clean architecture with spring boot in this link https://www.baeldung.com/spring-boot-clean-architecture In this tutorial, spring context load bean with bean factory. Then when I want to test API with MockMvc. I write test class follow this:

Getting the below error while upgrade the springframework from 3.1.11 to 3.3.3

public class HumanAgentSocket extends TextWebSocketHandler { @Value(“${human.agents.available}”) private int availableHumanAgents; private List<WebSocketSession> sessions = new ArrayList<>(); private List<String> sessionIds = new ArrayList<>(); private HashMap<WebSocketSession,WebSocketSession> socketConnections = new HashMap<WebSocketSession,WebSocketSession>(); private int noOfHumanAgents = 1; private ObjectMapper objectMapper = new ObjectMapper(); @Override public void afterConnectionEstablished(WebSocketSession session) throws IOException { if (noOfHumanAgents<=5){ System.out.println(“Agents “+availableHumanAgents); sessions.add(session); sessionIds.add(session.getId()); System.out.println(“List “+sessionIds); […]

I am just running through the basic spring-boot tutorial Developing Your First Spring Boot Application using Maven and getting stuck at “Running the Example” using mvn spring-boot:run. Here is the error(s):