Lessons from Mixing Rust and Java: Fast, Safe, and Practical

How to Supercharge Your Java Project with Rust — A Practical Guide to JNI Integration with a Complete Example Greptime Follow 5 min read · 4 days ago 4 days ago -- Listen Share Rust and Java are both widely used languages, each excelling in different domains. In real-world scenarios, it’s often beneficial to combine them for more effective system-level and application-level programming: In a Java application, you may want to bypass the Garbage Collector (GC) and manually manage memory in performance-critical regions. You might port a performance-sensitive algorithm to Rust for speed and implementation hiding. Or in a Rust application, you may wish to expose functionality to the Java ecosystem by packaging it as a JAR. In this post, we’ll walk through how to organize and integrate Rust and Java in the same project. The focus is practical, with concrete code examples and step-by-step explanations. By the end, you’ll be able to create a cross-language application where Rust and Java ... Read full article.