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Java bindings
codemp
's Java bindings are implemented using the JNI.
On the Rust side, all Java-related code is gated behind the java
feature, and is implemented usingjni-rs
.
Unlike other languages, Java requires glue code on both sides: as a result, a Java component is necessary.
Building
This is a Gradle project: building requires having both Gradle and Cargo installed, as well as the JDK (any non-abandoned version).
Once you have all the requirements, building is as simple as running gradle build
: the output is going to be a JAR under build/libs
, which you can import into your classpath with your IDE of choice.
Development
The Java bindings have no known major quirk. However, here are a list of facts that are useful to know when developing with these:
- Memory management is entirely delegated to the JVM's garbage collector.
- A more elegant solution than
Object.finalize()
, who is deprecated in newer Java versions, may be coming eventually.
- A more elegant solution than
- Exceptions coming from the native side have generally been made checked to imitate Rust's philosophy with
Result
.JNIException
s are however unchecked: there is nothing you can do to recover from them, as they usually represent a severe error in the glue code. If they arise, it's probably a bug.