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Latest — Apr 23, 2024

react native run on android Caused by: java.util.concurrent.ExecutionException: com.android.tools.r8.internal.Jj: java.lang.NullPointerException: Cannot invoke "String.length()" because "" is null

Today I would like to continue my react native app development work. After I run npm start , I got below quite strange error. I build the app via android studio, no build issue. Quite strange problem. Caused by: java.util.concurrent.ExecutionException: com.android.tools.r8.internal.Jj: java.lang.

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Don't Forget to Update Spring Cloud Version When Upgrading Spring Cloud Gateway

Hey everyone, Today, I'd like to share a quick tip for those of you who are upgrading Spring Cloud Gateway in your projects. It's important to remember that when you upgrade Spring Cloud Gateway, you also need to update the Spring Cloud version to ensure compatibility. Here's why: Spring Cloud

why your Spring Data JPA query so slow? took more than 10 mins to just fetch 100 thousands records

We encountered a query performance issue which took more than 10 minutes to complete a query from a table which has 100 thousands records. We are using Spring Data JPA framework. We thought the framework shouldn't be quite slow. 100,000 records is not too much. After google search, find

Seamless Transaction ID Propagation in Spring WebFlux Applications

Introduction In Spring WebFlux applications, ensuring consistent transaction ID propagation across asynchronous execution chains is essential for effective logging and tracing. However, the reactive, non-blocking nature of WebFlux introduces challenges due to multiple threads handling requests concurrently. In this guide, we'll explore how to seamlessly propagate transaction IDs using the

Logging Transaction IDs in a Spring Web Application Execution Chain

Introduction In complex Spring Web applications, tracking requests through the execution chain can be challenging, especially in distributed environments. One effective way to enhance request traceability is by logging transaction IDs throughout the request lifecycle. In this guide, we'll explore how to implement transaction ID logging using SLF4J, Logback, and

Crafting Custom Log Layouts with SLF4J and Logback: A Step-by-Step Guide

Introduction Customizing logging output is a common requirement in many applications, allowing developers to tailor log messages to specific formats and structures. SLF4J with Logback provides powerful capabilities for customizing logging behavior, including the ability to define custom layouts for log messages. In this guide, we'll explore how to implement

Copying MDC Context Map in Web Clients: A Comprehensive Guide

Introduction In distributed systems, maintaining context across microservices is crucial for effective logging and tracing. The Mapped Diagnostic Context (MDC) in logging frameworks like Logback or Log4j allows developers to propagate contextual information such as request IDs, user IDs, or correlation IDs across threads and services. When using web clients

Configuring Web Security in Spring Web and Spring WebFlux with Spring Boot 3.x and Java 17

Team is proactively working on spring boot 3.x upgrade and java 17. this post guide you how to migrate those Web Security Config in both Spring Web and Spring WebFlux. Securing web applications is a critical aspect of modern software development. In Spring applications, configuring web security is made

Implementing Filters in Spring Web and Spring WebFlux

Introduction Team is proactively working on spring boot 3.x upgrade and java 17. this post guide you how to migrate those Filters in both Spring Web and Spring WebFlux. Filters are a fundamental aspect of web development, allowing developers to intercept and manipulate incoming requests and outgoing responses. In

A Comprehensive Guide to Context Path Configuration in Spring Web and Spring WebFlux

Introduction Team is working on spring boot version upgrade to 3.x and java to java 17. We noticed a few changes required for Context Path. The context path plays a crucial role in web applications, serving as the prefix to all URLs within the application. Configuring the context path