Function flowlang::Java_com_newbound_code_LibFlow_call

#[no_mangle]
pub extern "system" fn Java_com_newbound_code_LibFlow_call(
    env: JNIEnv<'_>, 
    class: JClass<'_>, 
    lib: JString<'_>, 
    ctl: JString<'_>, 
    cmd: JString<'_>, 
    args: JString<'_>
) -> jstring