The Java Dev

Tweeting out the best Java posts from Part of the @ThePracticalDev family ❤️

[The Java Dev @The_Java_Dev]

RT @animesh_kr1: Performance testing often happens too late, when fixing issues is expensive. Explore shift-left with Gatling can fit naturally into automation pipelines using a controlled env and automated thresholds. @ThePracticalDev @springboot @java #DEVCommunity

[The Java Dev @The_Java_Dev]

Java developers can now build GenAI features without the boilerplate.

Learn how to use Genkit Java and Gemini to create strongly typed AI flows with structured output and built-in observability.

[ author: @xavidop + @GoogleDevExpert }

https://t.co/4arAhhopq8

[The Java Dev @The_Java_Dev]

Stop wasting time on port conflicts and bean configuration crashes. Here is a compilation of common Spring Boot errors and their practical solutions.

{ author: Akanksha Soni }

https://t.co/TSaJfaxKY5

[The Java Dev @The_Java_Dev]

Java concurrency has changed.

With the introduction of Virtual Threads and a focus on immutability, the way we handle parallelism is revolutionizing. Here is the deep dive.

{ author: @realDBC4 }

https://t.co/mYgEHdw0iz

[Hadil Ben Abdallah @hadilbnabdallah]

Wanna know if you are a real JavaScript developer or not? 😅

Check out my latest article on @ThePracticalDev 🔥:
You’re a Real @JavaScript Developer Only If...

https://t.co/fA4heipgfX

#Programming #JavaScript #DevCommunity

[Vadym Kazulkin @VKazulkin]

New blog post alert 🚨
"@Quarkus 3 application on #AWS Lambda- Part 5 Measuring Lambda cold and warm starts with @graalvm Native Image".
#AWS #Serverless #Java @java @ThePracticalDev @The_Java_Dev
https://t.co/B6xcBRBX6P

[The Java Dev @The_Java_Dev]

Implementing cdk-nag in Java CDK unit tests
🔹 Apply AwsSolutionsChecks in test setup
🔹 Use CDK Assertions to catch missing security rules

{ author: @yvthepief } #DEVCommunity #Java
https://t.co/t6XBqI5H4N

[The Java Dev @The_Java_Dev]

Day 1 of my 270-day coding journey: diving into Java with a clear roadmap to grow as a creator, thinker and builder. #DEVCommunity #Java
https://t.co/aAiC2Mkp3X

[The Java Dev @The_Java_Dev]

Walk through fixing a Java cdk-nag test in AWS CDK, using Amazon Q to surface EC23 warnings and enforce security best practices.

{ author: @yvthepief } #DEVCommunity #Java
https://t.co/t6XBqI5H4N

[The Java Dev @The_Java_Dev]

✅ sync.WaitGroup basics: Add, Done, Wait
✅ memory layout tricks and atomic updates
✅ goroutine coordination internals #DEVCommunity #Java
https://t.co/2oit7nIUFK

[The Java Dev @The_Java_Dev]

Go’s sync.WaitGroup uses Add, Done and Wait to block main goroutine until subtasks complete, relying on atomic counters and semaphores. #DEVCommunity #Java
https://t.co/2oit7nIUFK

[The Java Dev @The_Java_Dev]

Insert and merge a new interval into a sorted, non overlapping list
• Single pass O(n), constant extra space
• Java code example

{ author: @vazhathody } #DEVCommunity #Java
https://t.co/8foUz10bpo

[The Java Dev @The_Java_Dev]

Explore 5 libraries for reading image EXIF data in code, including libheif, exiv2, ExifTool, Leadtools and JDeli. #DEVCommunity #Java
https://t.co/r1n4Gi8ern

[The Java Dev @The_Java_Dev]

Learn how to cut cold starts in Quarkus 3 Lambdas by priming DynamoDB with AWS SnapStart. Startup median drops to ~650 ms.

{ author: @VKazulkin } #DEVCommunity #Java
https://t.co/n5KW2HouJs

[The Java Dev @The_Java_Dev]

Structured string parsing in Java can be brittle with regex or split. StringFormat uses templates for clear, compile-safe extraction. #DEVCommunity #Java
https://t.co/y2YqERLR4H

[The Java Dev @The_Java_Dev]

Jargon-free guide to the Prototype Pattern: clone complex objects instead of rebuilding them and manage deep vs shallow copies cleanly. #DEVCommunity #Java
https://t.co/H3S0dUeFeg

[The Java Dev @The_Java_Dev]

Java data types in brief: primitive vs reference, literals, type conversion rules and wrappers. Essential refresher for interviews or quick review. #DEVCommunity #Java
https://t.co/vvOczn0g6s

[The Java Dev @The_Java_Dev]

Trace Java’s journey from Sun’s Oak experiment to today’s Write Once, Run Anywhere staple, driven by bytecode and the JVM. #DEVCommunity #Java
https://t.co/VfeMbxAfQm

[The Java Dev @The_Java_Dev]

Java guide to creating a number-guessing game: pick a random 1–100 number, offer 10 attempts and give higher/lower hints. #DEVCommunity #Java
https://t.co/OzDNGYgLrJ

[The Java Dev @The_Java_Dev]

Add Spring Boot integration tests with MockMvc to go beyond unit tests. Learn when to choose @WebMvcTest or @SpringBootTest. #DEVCommunity #Java
https://t.co/c8G9owNEXv