Wait for Multiple Spring WebClient Mono Responses Achieving Parallelism and Synchronization

Introduction: In today’s micro-service architecture landscape, calling external services efficiently is crucial for building high-performance applications. Asynchronous and reactive programming paradigms offer great benefits in terms of scalability and responsiveness. However, handling multiple responses from Spring WebClient Mono objects in parallel while ensuring synchronization can be challenging. In this article, we will explore an approach…

How to Fix the Classpath to Ensure Compatible Version of javax.servlet.ServletContext in Your Spring Boot Application

If you’re running a Spring Boot application and encountering an issue with the classpath of your application, specifically related to the javax.servlet.ServletContext, you’re in the right place. In this blog post, we’ll walk you through the steps to correct the classpath and ensure you’re using a compatible version of javax.servlet.ServletContext. Let’s dive in! Understanding the…

Resolving the JpaRepositoryConfigExtension Error in Spring Boot Applications

Are you having trouble with the error message “Correct the classpath of your application so that it contains a single, compatible version of org.springframework.data.jpa.repository.config.JpaRepositoryConfigExtension” while working on your Spring Boot application? Don’t worry! In this article, we’ll provide a detailed guide to help you resolve this issue and get your application running smoothly again. Just…

Troubleshooting ‘springSecurityFilterChain’ Threw java.lang.IllegalArgumentException: Providers List Cannot Contain Null Values

Introduction Have you encountered the frustrating error message in your Spring Boot application: ‘springSecurityFilterChain’ threw java.lang.IllegalArgumentException: providers list cannot contain null values? Don’t worry; you’re not alone. In this article, we will delve into the causes behind this error and provide you with effective troubleshooting steps to resolve it. So, let’s get started! Understanding the…

Troubleshooting Guide: Could Not Load JDBC Driver Class [org.postgresql.Driver]

Are you working on a Java project and encountering the error “Could not load JDBC driver class [org.postgresql.Driver]”? This error can be frustrating, especially when you’re trying to establish database connectivity. But worry not! In this troubleshooting guide, we’ll explore the causes of this error and provide you with solutions to resolve it. Understanding the…

Spring Security 5 Replacement for OAuth2RestTemplate: A Simple and Effective Solution

Introduction: In recent versions of Spring Security, classes like OAuth2RestTemplate, OAuth2ProtectedResourceDetails, and ClientCredentialsAccessTokenProvider have been marked as deprecated. This has led to confusion among developers looking for a suitable replacement in the core Spring Security 5 project. In this blog post, we will explore an alternative approach to using OAuth2RestTemplate and discuss how to implement…