Author

Umesh Kumar Yadav

@umeshcapg

articles: 64
total claps: 1,893
top claps: 469
avg read: 5.9 min
paywalled: 64
active: 2025-05-24 → 2026-07-11

Wiki topics

💻 · Programming · 37 DSN · Design · General · 11 🏛️ · Architecture · 6 🌐 · Web Development · 4 ☁️ · DevOps & Cloud · 2 🔧 · Data Engineering · 2 GEN · Genomics & Sequencing · 1 💑 · Relationships · 1

Top tags

#java ·59 #spring-boot ·33 #software-development ·24 #programming ·19 #software-engineering ·15 #coding ·14 #design ·11 #database ·5 #interview ·5 #sql ·5

UM Umesh Kumar Yadav · Javarevisited

Google L5 level Interview: If You Join 10 Tables in an SQL Query, How Would You Optimize…

During a recent technical interview at Goofle, a candidate was asked a challenging question:

May 06, 2026 · 4 min read · 469 claps paywalled #java #sql #interview

Google L5 level Interview: If You Join 10 Tables in an SQL Query, How Would You Optimize…

TCH

UM Umesh Kumar Yadav

Logging Spring Web Requests and Responses Like a Pro 🕵️‍♂️

If you are not a paid Medium member, please use this link to read the entire article for free.

Jul 11, 2025 · 4 min read · 127 claps paywalled #java #spring-boot #logging

Logging Spring Web Requests and Responses Like a Pro 🕵️‍♂️

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UM Umesh Kumar Yadav · CodeTutorials

Why Use char[] Instead of String for Passwords in Java

In modern software development, secure password handling extends far beyond hashing and salting in the database. A critical yet frequently…

Apr 21, 2026 · 4 min read · 88 claps paywalled #java #spring-boot #design

Why Use char[] Instead of String for Passwords in Java

TCH

UM Umesh Kumar Yadav · CodeTutorials

Interviewer: Tell me about async/await?

A while ago, during a technical interview for a senior backend position, my mind went blank for a second. I almost blurted out the classic…

May 24, 2026 · 5 min read · 66 claps paywalled #java #spring-boot #software-development

TCH

UM Umesh Kumar Yadav · Javarevisited

Mastering Fail-Fast and Fail-Safe in Java Collections: The Interview Question That Separates Junior…

Understanding Iterator Behavior, Concurrent Modification, and Collection Design in Java

Jun 04, 2026 · 6 min read · 65 claps paywalled #java #software-development #software-engineering

Mastering Fail-Fast and Fail-Safe in Java Collections: The Interview Question That Separates Junior…

TCH

UM Umesh Kumar Yadav · CodeTutorials

Building a JVM Health Check Task for Production Systems

This article reflects on a major issue that occurred in 2026 year.

Mar 12, 2026 · 5 min read · 63 claps paywalled #java #spring-boot #software-development

Building a JVM Health Check Task for Production Systems

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UM Umesh Kumar Yadav · CodeTutorials

In-depth Analysis of the Entire Spring MVC Parent–Child Container Build Process

Introduction

Mar 07, 2026 · 5 min read · 60 claps paywalled #java #spring-boot #design

In-depth Analysis of the Entire Spring MVC Parent–Child Container Build Process

AI SCI

UM Umesh Kumar Yadav · Javarevisited

From Index Invalidation to 2× Faster Queries: 10 Database Index Optimization Techniques Most DBAs…

Indexes are one of the most misunderstood parts of database optimization.

May 17, 2026 · 6 min read · 57 claps paywalled #sql #query #optimization

From Index Invalidation to 2× Faster Queries: 10 Database Index Optimization Techniques Most DBAs…

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UM Umesh Kumar Yadav · Javarevisited

Why Many Architects Ban SQL Queries That Join More Than Three Tables

Lessons from an interview: Join algorithms and why “just write one big SQL query” is often a bad idea.

Jul 11, 2026 · 5 min read · 54 claps paywalled #sql #software-development #software-engineering

Why Many Architects Ban SQL Queries That Join More Than Three Tables

UM Umesh Kumar Yadav

Mastering Dynamic Proxy and CGLIB Proxy in Spring Boot with Examples and Use-Cases🚀

Understanding Dynamic Proxy and CGLIB Proxy in Spring Boot

Jun 04, 2025 · 9 min read · 52 claps paywalled #java #spring-boot #proxy

Mastering Dynamic Proxy and CGLIB Proxy in Spring Boot with Examples and Use-Cases🚀

TCH

UM Umesh Kumar Yadav · CodeTutorials

Practical Guide to Kafka Message Backlog Handling: Optimization Techniques for Emptying…

Having worked as a Java developer for eight years, I have encountered at least eighty to a hundred middleware-related pitfalls. Among them…

Mar 12, 2026 · 4 min read · 52 claps paywalled #java #spring-boot #kafka

Practical Guide to Kafka Message Backlog Handling: Optimization Techniques for Emptying…

TCH

UM Umesh Kumar Yadav · Javarevisited

A Brief Analysis of Batch and Pagination Query Scenarios and Solutions

Batch processing and pagination queries are everywhere in backend engineering.

May 17, 2026 · 6 min read · 51 claps paywalled #sql #batch #pagination

A Brief Analysis of Batch and Pagination Query Scenarios and Solutions

TCH

UM Umesh Kumar Yadav

What is a Blocking Queue? 🚦 A quick guide with examples

In the world of concurrent programming, managing the flow of tasks between different threads is crucial. Enter the Blocking Queue…

Jun 08, 2025 · 7 min read · 50 claps paywalled #java #blockingqueue #queue

What is a Blocking Queue? 🚦 A quick guide with examples

UM Umesh Kumar Yadav · Javarevisited

Building Production-Ready Distributed Transactions with Apache Camel Saga Pattern in Spring Boot

Why Distributed Transactions Are Hard

Jun 22, 2026 · 4 min read · 50 claps paywalled #java #apache-camel #software-development

Building Production-Ready Distributed Transactions with Apache Camel Saga Pattern in Spring Boot

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UM Umesh Kumar Yadav · CodeTutorials

Understanding the Construction of the IoC Container in a Web Environment by Starting with a Single…

Foreword

Mar 07, 2026 · 3 min read · 50 claps paywalled #java #spring-boot #software-development

Understanding the Construction of the IoC Container in a Web Environment by Starting with a Single…

ART TCH

UM Umesh Kumar Yadav · CodeTutorials

10x Increase in Throughput: Architectural Evolution and Performance Optimization for…

Architecting high-concurrency batch processing systems with Spring Boot, XXL-JOB, Redis, and MySQL.

Jun 26, 2026 · 12 min read · 49 claps paywalled #java #software-development #software-engineering

10x Increase in Throughput: Architectural Evolution and Performance Optimization for…

TCH

UM Umesh Kumar Yadav

Unlocking Concurrent Programming: A Guide to Java’s Blocking Queues 🚦

If you are not a paid Medium member, please use this link to read the entire article for free.

Jul 12, 2025 · 4 min read · 44 claps paywalled #java #blockingqueue #gui̇de

Unlocking Concurrent Programming: A Guide to Java’s Blocking Queues 🚦

ART TCH

UM Umesh Kumar Yadav

CMS vs. G1 vs. ZGC: Choosing the Right Java Garbage Collector for Your Spring Boot App 🚀

Choosing a garbage collector (GC) for your Java application is like hiring a janitorial crew for a massive, busy skyscraper. The wrong crew…

Jul 06, 2025 · 4 min read · 42 claps paywalled #java #garbage-collection #algorithms

CMS vs. G1 vs. ZGC: Choosing the Right Java Garbage Collector for Your Spring Boot App 🚀

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UM Umesh Kumar Yadav · CodeToDeploy

Understanding Jetstream: The Modern Messaging Powerhouse Compared to Kafka

A deep dive into NATS Jetstream, its advantages over Kafka, and a hands-on guide with Spring Boot.

Jul 28, 2025 · 7 min read · 38 claps paywalled #java #jetstream #pub-sub

Understanding Jetstream: The Modern Messaging Powerhouse Compared to Kafka

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UM Umesh Kumar Yadav · Javarevisited

Interviewer : How to locate and avoid deadlocks?

Goldman Sachs Second-Round Interview: How to Locate and Avoid Deadlocks in Java

Jul 10, 2026 · 14 min read · 35 claps paywalled #java #deadlock #software-development

Interviewer : How to locate and avoid deadlocks?

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UM Umesh Kumar Yadav

ModelMapper vs. MapStruct: The Ultimate Showdown for Java Object Mapping

For non-members, please read for free here.

Jul 26, 2025 · 5 min read · 34 claps paywalled #java #modelmapper #mapstruct

ModelMapper vs. MapStruct: The Ultimate Showdown for Java Object Mapping

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UM Umesh Kumar Yadav · CodeElevation

Why Use JdbcTemplate in theAge of Spring Data JPA ?

Having worked in software development for years, I recently used JdbcTemplate for the first time. Naturally, I wanted to dive deep into…

Sep 21, 2025 · 5 min read · 30 claps paywalled #java #database #jdbc-template

Why Use JdbcTemplate in theAge of Spring Data JPA ?

UM Umesh Kumar Yadav · CodeTutorials

LangChain4j: The Ultimate Java Developer’s Guide to Building Enterprise AI Applications with RAG…

Why Every Java Developer Should Learn LangChain4j in 2026

Jun 10, 2026 · 5 min read · 23 claps paywalled #java #software-development #software-engineering

LangChain4j: The Ultimate Java Developer’s Guide to Building Enterprise AI Applications with RAG…

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UM Umesh Kumar Yadav · Stackademic

If an Interviewer Asked You About Single Sign-On (SSO), Could You Explain It Clearly?

How SSO Actually Works in Real Systems Using Java, Spring Boot, JWT, Redis, and Spring Security

Jun 02, 2026 · 5 min read · 23 claps paywalled #sso #programming #login

If an Interviewer Asked You About Single Sign-On (SSO), Could You Explain It Clearly?

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UM Umesh Kumar Yadav · Towards Dev

Spring AOP Core Principles: Aspect-Oriented Programming + Custom Annotations in Practice

As a Java developer with twelve years of experience, I have refactored more than 30 projects suffering from repetitive code: interface logs…

Feb 06, 2026 · 6 min read · 20 claps paywalled #java #spring-boot #coding