diff --git a/samples/android/face-detection/jni/DetectionBasedTracker_jni.cpp b/samples/android/face-detection/jni/DetectionBasedTracker_jni.cpp
index 974a5f62a..d9b10d595 100644
--- a/samples/android/face-detection/jni/DetectionBasedTracker_jni.cpp
+++ b/samples/android/face-detection/jni/DetectionBasedTracker_jni.cpp
@@ -45,7 +45,7 @@ JNIEXPORT jlong JNICALL Java_org_opencv_samples_facedetect_DetectionBasedTracker
     {
         LOGD("nativeCreateObject caught unknown exception");
         jclass je = jenv->FindClass("java/lang/Exception");
-        jenv->ThrowNew(je, "Unknown exception in JNI code {highgui::VideoCapture_n_1VideoCapture__()}");
+        jenv->ThrowNew(je, "Unknown exception in JNI code of DetectionBasedTracker.nativeCreateObject()");
         return 0;
     }
 
@@ -77,7 +77,7 @@ JNIEXPORT void JNICALL Java_org_opencv_samples_facedetect_DetectionBasedTracker_
     {
         LOGD("nativeDestroyObject caught unknown exception");
         jclass je = jenv->FindClass("java/lang/Exception");
-        jenv->ThrowNew(je, "Unknown exception in JNI code {highgui::VideoCapture_n_1VideoCapture__()}");
+        jenv->ThrowNew(je, "Unknown exception in JNI code of DetectionBasedTracker.nativeDestroyObject()");
     }
     LOGD("Java_org_opencv_samples_facedetect_DetectionBasedTracker_nativeDestroyObject exit");
 }
@@ -102,7 +102,7 @@ JNIEXPORT void JNICALL Java_org_opencv_samples_facedetect_DetectionBasedTracker_
     {
         LOGD("nativeStart caught unknown exception");
         jclass je = jenv->FindClass("java/lang/Exception");
-        jenv->ThrowNew(je, "Unknown exception in JNI code {highgui::VideoCapture_n_1VideoCapture__()}");
+        jenv->ThrowNew(je, "Unknown exception in JNI code of DetectionBasedTracker.nativeStart()");
     }
     LOGD("Java_org_opencv_samples_facedetect_DetectionBasedTracker_nativeStart exit");
 }
@@ -127,7 +127,7 @@ JNIEXPORT void JNICALL Java_org_opencv_samples_facedetect_DetectionBasedTracker_
     {
         LOGD("nativeStop caught unknown exception");
         jclass je = jenv->FindClass("java/lang/Exception");
-        jenv->ThrowNew(je, "Unknown exception in JNI code {highgui::VideoCapture_n_1VideoCapture__()}");
+        jenv->ThrowNew(je, "Unknown exception in JNI code of DetectionBasedTracker.nativeStop()");
     }
     LOGD("Java_org_opencv_samples_facedetect_DetectionBasedTracker_nativeStop exit");
 }
@@ -158,7 +158,7 @@ JNIEXPORT void JNICALL Java_org_opencv_samples_facedetect_DetectionBasedTracker_
     {
         LOGD("nativeSetFaceSize caught unknown exception");
         jclass je = jenv->FindClass("java/lang/Exception");
-        jenv->ThrowNew(je, "Unknown exception in JNI code {highgui::VideoCapture_n_1VideoCapture__()}");
+        jenv->ThrowNew(je, "Unknown exception in JNI code of DetectionBasedTracker.nativeSetFaceSize()");
     }
     LOGD("Java_org_opencv_samples_facedetect_DetectionBasedTracker_nativeSetFaceSize exit");
 }
@@ -187,7 +187,7 @@ JNIEXPORT void JNICALL Java_org_opencv_samples_facedetect_DetectionBasedTracker_
     {
         LOGD("nativeDetect caught unknown exception");
         jclass je = jenv->FindClass("java/lang/Exception");
-        jenv->ThrowNew(je, "Unknown exception in JNI code {highgui::VideoCapture_n_1VideoCapture__()}");
+        jenv->ThrowNew(je, "Unknown exception in JNI code DetectionBasedTracker.nativeDetect()");
     }
     LOGD("Java_org_opencv_samples_facedetect_DetectionBasedTracker_nativeDetect exit");
 }