diff --git a/rsbinder-tools/src/bin/rsb_hub.rs b/rsbinder-tools/src/bin/rsb_hub.rs
index 94d1cac..c10a7dc 100644
--- a/rsbinder-tools/src/bin/rsb_hub.rs
+++ b/rsbinder-tools/src/bin/rsb_hub.rs
@@ -246,7 +246,7 @@ fn main() -> std::result::Result<(), Box<dyn std::error::Error>> {
     let _ = clap::Command::new("rsb_hub")
         .version(env!("CARGO_PKG_VERSION"))
         .author(env!("CARGO_PKG_AUTHORS"))
-        .about("Linux daemon that emulates functionality similar to Android's ServiceManager")
+        .about("A service manager for Binder IPC on Linux. Facilitates service registration, discovery, and management.")
         .get_matches();
 
     env_logger::Builder::from_env(Env::default().default_filter_or("warn")).init();
diff --git a/rsbinder/src/ref_counter.rs b/rsbinder/src/ref_counter.rs
index 9bcd7ba..dfcc6bd 100644
--- a/rsbinder/src/ref_counter.rs
+++ b/rsbinder/src/ref_counter.rs
@@ -69,10 +69,10 @@ impl RefCounter {
     pub fn dec(&self, f: impl FnOnce() -> Result<()>) -> Result<()> {
         let c = self.count.fetch_sub(1, Ordering::Relaxed);
         if c == 1 {
-            self.count.compare_exchange(0, INITIAL_STRONG_VALUE,
-                Ordering::Relaxed, Ordering::Relaxed)
-                .expect("Failed to exchange the reference count.");
-            f()?;
+            if self.count.compare_exchange(0, INITIAL_STRONG_VALUE,
+                Ordering::Relaxed, Ordering::Relaxed).is_ok() {
+                f()?;
+            }
         }
         Ok(())
     }
diff --git a/tests/src/test_client.rs b/tests/src/test_client.rs
index fbd66e5..fab8fea 100644
--- a/tests/src/test_client.rs
+++ b/tests/src/test_client.rs
@@ -968,40 +968,40 @@ fn test_renamed_interface_old_as_old() {
     });
 }
 
-// #[test]
-// fn test_renamed_interface_new_as_new() {
-//     test_renamed_interface(|_, new_name| {
-//         assert_eq!(
-//             <BpNewName as INewName::INewName>::descriptor(),
-//             "android.aidl.tests.IOldName"
-//         );
-
-//         let real_name = new_name.RealName();
-//         assert_eq!(real_name.as_ref().map(String::as_str), Ok("NewName"));
-//     });
-// }
+#[test]
+fn test_renamed_interface_new_as_new() {
+    test_renamed_interface(|_, new_name| {
+        assert_eq!(
+            <BpNewName as INewName::INewName>::descriptor(),
+            "android.aidl.tests.IOldName"
+        );
 
-// #[test]
-// fn test_renamed_interface_old_as_new() {
-//     test_renamed_interface(|old_name, _| {
-//         let new_name = old_name.as_binder().into_interface::<dyn INewName::INewName>();
-//         assert!(new_name.is_ok());
-
-//         let real_name = new_name.unwrap().RealName();
-//         assert_eq!(real_name.as_ref().map(String::as_str), Ok("OldName"));
-//     });
-// }
+        let real_name = new_name.RealName();
+        assert_eq!(real_name.as_ref().map(String::as_str), Ok("NewName"));
+    });
+}
 
-// #[test]
-// fn test_renamed_interface_new_as_old() {
-//     test_renamed_interface(|_, new_name| {
-//         let old_name = new_name.as_binder().into_interface::<dyn IOldName::IOldName>();
-//         assert!(old_name.is_ok());
-
-//         let real_name = old_name.unwrap().RealName();
-//         assert_eq!(real_name.as_ref().map(String::as_str), Ok("NewName"));
-//     });
-// }
+#[test]
+fn test_renamed_interface_old_as_new() {
+    test_renamed_interface(|old_name, _| {
+        let new_name = old_name.as_binder().into_interface::<dyn INewName::INewName>();
+        assert!(new_name.is_ok());
+
+        let real_name = new_name.unwrap().RealName();
+        assert_eq!(real_name.as_ref().map(String::as_str), Ok("OldName"));
+    });
+}
+
+#[test]
+fn test_renamed_interface_new_as_old() {
+    test_renamed_interface(|_, new_name| {
+        let old_name = new_name.as_binder().into_interface::<dyn IOldName::IOldName>();
+        assert!(old_name.is_ok());
+
+        let real_name = old_name.unwrap().RealName();
+        assert_eq!(real_name.as_ref().map(String::as_str), Ok("NewName"));
+    });
+}
 
 #[derive(Debug, Default)]
 struct Callback {