Swagger2: Failed to introspect Class [springfox.documentation.swagger2.configuration.Swagger2DocumentationConfiguration]

Are you encountering the frustrating “Failed to introspect Class” error while trying to implement Swagger2 in your Spring Boot project? Don’t worry, we’ve got you covered! In this blog post, we will explore the possible causes of this error and provide you with effective solutions to resolve it. Understanding the error The error message you’re…

Troubleshooting Spring Boot Microservice Error: java.net.SocketException: Connection Reset

Introduction: If you’re developing a microservice using Spring Boot and you encounter the error “java.net.SocketException: Connection reset,” you’re not alone. This error can be perplexing and disrupt the functionality of your microservice. In this article, we’ll explore the possible causes of this error and provide you with steps to troubleshoot and resolve it. So, let’s…

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…

Resolving the “The pool is closed” Error in a Spring Boot Application with MongoDB

Introduction In a Spring Boot application using MongoDB, encountering the error message “The pool is closed” can be frustrating. This error indicates that the MongoDB connections are closed unexpectedly, causing the application to fail. In this article, we will explore the meaning of this error and provide possible solutions to resolve it. Let’s dive in!…

Understanding and Resolving the PSQLException: ERROR – ‘Operator Does Not Exist: Integer = Bytea’ in Spring Boot Applications

Welcome back to our blog, code enthusiasts! Today, we’re going to tackle a fascinating and sometimes frustrating topic that may occur when executing a Native Query from a Spring Boot application. Let’s roll up our sleeves and decode the message “org.postgresql.util.PSQLException: ERROR: operator does not exist: integer = bytea.” This error could be quite the…

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 “Cannot Resolve Reference to Bean ‘mongoTemplate'” Error in Spring Boot MongoDB Integration

Introduction: If you’re developing a Spring Boot CRUD application with MongoDB integration and encountering the “Cannot resolve reference to bean ‘mongoTemplate’ while setting bean property ‘mongoOperations’” error, you’re in the right place. In this article, we’ll explore the causes of this error and provide a step-by-step guide to help you resolve it. So, let’s dive…

Spring Boot 2.2.1 H2 Failures? Troubleshooting Migration Issues

Introduction: Are you facing migration failures with Spring Boot 2.2.1 and H2? Upgrading your project’s Spring Boot version can sometimes introduce unexpected issues, especially when it comes to database migrations. In this article, we will explore the common problems developers encounter during the migration process and provide practical solutions to overcome them. Let’s dive into…