Fix JNI FindClass "tinyb/BluetoothNotification" not found

- Issue #52 : JNI call to findClass BluetoothNotification failed

- This issue happen with javafx application,
but not with "simple" java application.
- This issue happen only with "tinyb/BluetoothNotification" interface.
- Using the callback reference to retrieve the class instead of using
FindClass works fine.

Signed-off-by: Julien Decaen <[email protected]>

1 files changed, 11 insertions, 0 deletions

diff --git a/java/jni/helper.cxx b/java/jni/helper.cxx
index 6952184f..3ff6ffb4 100644
--- a/java/jni/helper.cxx
+++ b/java/jni/helper.cxx
@@ -52,6 +52,17 @@ jclass search_class(JNIEnv *env, const char *clazz_name)
     return clazz;
 }
 
+jclass search_class(JNIEnv *env, jobject obj)
+{
+    jclass clazz = env->GetObjectClass(obj);
+    if (!clazz)
+    {
+        std::string error = "no class found: ";
+        throw std::runtime_error(error);
+    }
+    return clazz;
+}
+
 jmethodID search_method(JNIEnv *env, jclass clazz, const char *method_name,
                 const char *prototype, bool is_static)
 {