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This page brings together practical insights for teams building with Java across web apps, enterprise systems, APIs, and large-scale backend services. You’ll find discussions around architecture choices, JVM performance tuning, Spring Boot patterns, microservices design, cloud deployments, and real-world lessons from long-running Java implementations. Whether you’re dealing with modernization, integration challenges, or platform scalability, the resources here offer a grounded look at how engineering teams tackle Java projects in production.

As you explore, you’ll also get clarity on what to look for when you hire Java developer talent—strong command of core Java fundamentals, experience with frameworks like Spring and Hibernate, comfort with distributed systems, and a disciplined approach to testing and code quality. And when your roadmap calls for additional Java capacity, you can easily review developer profiles, request shortlists, or schedule interviews to bring reliable backend expertise into your team.

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Blog
How to Configure Spring Boot Read/Write Routing with RDS Read Replicas

How to Configure Spring Boot Read/Write Routing with RDS Read Replicas

Malhar B.
Malhar B. Senior QA & Test Automation Engineer, 11+ Years

Scaling database reads during peak traffic is a critical challenge for growing SaaS platforms. In this engineering insight, we share a real-world safe migration strategy for implementing a Spring Boot read write datasource using AWS RDS, ensuring minimal downtime, fast rollbacks and scalable production performance.

Blog
How to Dynamically Scan JPA Repository Packages in Spring Boot

How to Dynamically Scan JPA Repository Packages in Spring Boot

Kalpit M.
Kalpit M. Senior Software Engineer, 13+ Years

Faced with silent test failures when applying Ant-style wildcards in Spring annotations? Standard component scanning does not inherently support deep regex package resolution. Discover how we built a robust mechanism to dynamically scan nested module packages in a complex SaaS environment.

Blog
Spring Boot Kafka Avro: Fix Schema Namespace Mismatches

Spring Boot Kafka Avro: Fix Schema Namespace Mismatches

Malhar B.
Malhar B. Senior QA & Test Automation Engineer, 11+ Years

In event-driven architectures, managing Avro schema namespaces across multiple Spring Boot microservices often leads to classpath failures during deserialization. Learn how we resolved this critical issue in a logistics SaaS platform by decoupling schemas from project-specific directories and implementing a centralized schema management strategy.

Blog
KafkaTemplate Sends but No Messages Appear? Fix It in KRaft

KafkaTemplate Sends but No Messages Appear? Fix It in KRaft

Kalpit M.
Kalpit M. Senior Software Engineer, 13+ Years

When building a FinTech event-driven platform, we encountered a puzzling issue: Spring Boot’s KafkaTemplate reported successful message delivery, yet console consumers showed nothing. Discover how we traced the root cause to KRaft internal topic replication settings and resolved the phantom message mystery.

Blog
Hibernate 6 Custom ID Generator: Assigned & Auto-Increment IDs

Hibernate 6 Custom ID Generator: Assigned & Auto-Increment IDs

Malhar B.
Malhar B. Senior QA & Test Automation Engineer, 11+ Years

Upgrading to Java 21 and Spring Boot 3 brings significant performance gains but often breaks legacy database integrations. Learn how we rebuilt a broken hibernate custom id generator to gracefully handle pre-assigned IDs while correctly falling back to native database auto-increments without corrupting legacy data.

Blog
Fix ORA-02289: Hibernate Oracle Identity Column

Fix ORA-02289: Hibernate Oracle Identity Column

Kalpit M.
Kalpit M. Senior Software Engineer, 13+ Years

Fix ORA-02289 Hibernate Oracle errors when JPA incorrectly maps an Oracle identity column as a sequence. Learn why GenerationType.IDENTITY eliminates sequence lookup errors and creates a cleaner, future-proof mapping.

Blog
How to Block VPN Connections in Java Without Third-Party Libraries

How to Block VPN Connections in Java Without Third-Party Libraries

Malhar B.
Malhar B. Senior QA & Test Automation Engineer, 11+ Years

Securing a restricted FinTech platform without external APIs required creative architectural thinking. Learn how we utilized core Java networking heuristics to detect and block incoming VPN connections purely at the application layer, ensuring compliance without third-party dependencies.

Blog
How to Fix Gradle JavaCompile NO-SOURCE for gRPC Builds

How to Fix Gradle JavaCompile NO-SOURCE for gRPC Builds

Kalpit M.
Kalpit M. Senior Software Engineer, 13+ Years

While optimizing a FinTech microservices platform, our team encountered a NO-SOURCE error when isolating auto-generated gRPC Java files into a custom Gradle JavaCompile task. Discover how we diagnosed Gradle’s task input requirements and implemented incremental builds to drastically reduce local compilation times.

Blog
Java ReferenceQueue Bottlenecks: Scaling PhantomReference Cleanup for High-Throughput Apps

Java ReferenceQueue Bottlenecks: Scaling PhantomReference Cleanup for High-Throughput Apps

Malhar B.
Malhar B. Senior QA & Test Automation Engineer, 11+ Years

In a recent FinTech platform architecture, we encountered severe memory leaks due to Java ReferenceQueue bottlenecks. With no native way to measure queue size, our team devised a dynamic scaling strategy using consecutive polling metrics to monitor and process PhantomReferences efficiently, ensuring stable memory reclamation under high load.

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