java/jni: JavaConfig add note about default value of optional_package
@@ -90,7 +90,7 @@ impl JavaConfig {
self
}
/// If you use JDK without java.util.Optional*, then you can provide
- /// name of custom package with Optional
+ /// name of custom package with Optional. Default value is "java.util"
pub fn use_optional_package(mut self, optional_package: String) -> JavaConfig {
self.optional_package = optional_package;
self
