Add jni feature

Cargo.toml

@@ -1,15 +1,13 @@
 [package]
 name = "jnat"
-version = "0.2.2"
+version = "0.2.3"
 edition = "2021"
 license = "MIT"
 description = "A wrapper around the jni crate"
 repository = "https://github.com/shreyasm-dev/jnat/"
 readme = "README.md"
 categories = ["api-bindings"]
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
 jni = "0.21.1"
 
@@ -22,3 +20,7 @@ harness = false
 inventory = "0.3.11"
 log = "0.4.19"
 pretty_env_logger = "0.5.0"
+
+[features]
+default = ["jni"]
+jni = []

README.md

@@ -56,3 +56,7 @@ public class HelloWorld {
 ```
 
 Compile the java file with `javac -h . HelloWorld.java`. Then, run `java -Djava.library.path=path/to/target/debug HelloWorld`. You should see `Hello, world!` printed to the console.
+
+## Notes
+
+- Jnat re-exports jni by default. If you want to use a different version of jni, you can disable either the default features or the `jni` feature.

src/lib.rs

@@ -1,4 +1,5 @@
 pub mod env;
 pub mod signature;
 
+#[cfg(feature = "jni")]
 pub use jni;