I have caused a memory leak in Java before.The cause was data that was temporarily used for game ranking aggregation.Once the aggregation process was finished, that data was no longer needed. However, ...

Oracle has released version 27 of the Java programming language and virtual machine. As the second non-LTS release since JDK 25, the final feature set includes nine JEPs, five of which are still ...

Improvements in JDK garbage collection, header sizes, data security and quantum key support all should minimize developer ...

HashMap并发死循环是个老话题，但每次出事都是真实的生产事故。关键记住三点：JDK7的 transfer 方法是死循环根源、JDK8改尾插法只解决了死循环但没解决线程安全、生产环境跨线程共享的 ...

Metals v2 rethinks code intelligence for large-scale monorepos that have outgrown conventional JVM language servers. Metals has been the official Scala language server for years. With full Java ...

On July 27, 2026, JetBrains published a security advisory for CVE-2026-63077, a critical unsafe deserialization vulnerability affecting JetBrains TeamCity. An attacker who can reach a TeamCity server ...

500+ Java interview questions and answers for Junior, Middle, and Senior Java backend developers. Covers Spring Boot, Hibernate / JPA, SQL, PostgreSQL, Kafka, Docker ...

Pure Java implementation of Universal Commerce Protocol (UCP) for e-commerce checkout, payments, and order management. As AI agents and autonomous commerce become increasingly prevalent, the need for ...

Use Spring MVC MultipartFile, Java Path APIs and the browser fetch API to upload files asynchronously and save them safely on the server. See how to read an array's length, define its fixed size, ...

In the previous article, we implemented the basics of an API to receive requests. This time, we will proceed with the implementation of the response side, which returns menu data for multiple days.

Package a Jakarta EE 11 web application and Open Liberty runtime into one runnable JAR with Maven and the Liberty Maven Plugin. Use JUnit, Cucumber, REST Assured, Selenium and JMeter to test Java ...

Affected Products Ivanti EPMM, versions 11.12.0.4 and prior, 12.3.0.1 and prior, 12.4.0.1 and prior, and 12.5.0.0 and prior. (Ivanti provided a patch and disclosed the vulnerabilities on May 13, 2025.