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

a year ago

Combining Rust and Java leverages their strengths in system-level and application-level programming.
JNI (Java Native Interface) bridges Java and native code but requires careful memory and thread management.
Memory segments in Java include the Java Heap (GC-managed), Native Memory (explicit management needed), and others.
The rust-java-demo project demonstrates seamless Rust-Java integration with platform-specific libraries in a single JAR.
Unified logging across Rust and Java is achieved by funneling logs through SLF4J.
Calling Rust async functions from Java involves manual runtime management and CompletableFuture for non-blocking integration.
Rust errors are mapped to Java exceptions for uniform error handling.
GreptimeDB is an open-source, cloud-native database built in Rust for real-time observability.

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