#[cfg(target_os="android")]
#[allow(non_snake_case)]
pub mod android {
    extern crate jni;

    use super::*;
    use self::jni::JNIEnv;
    use self::jni::objects::{JClass, JString};
    use self::jni::sys::{jstring};

    #[no_mangle]
    pub unsafe extern fn Java_rs_cph_hellorust_FFI_func(env: JNIEnv, _: JClass, java_pattern: JString)
        -> jstring {
        let world = rust_func(env.get_string(java_pattern).expect("invalid pattern string").as_ptr());
        // Retake pointer, to use it below and allow memory to be freed when it goes out of scope.
        let world_ptr = CString::from_raw(world);
        let output = env.new_string(world_ptr.to_str().unwrap()).expect("Couldn't create java string!");

        output.into_inner()
    }
}