make playlist stop synchronous

bindings/java/src/playlist-jni.cc

@@ -26,6 +26,8 @@
 /* These are a must*/
 #include <jni.h>
 #include <vlc/libvlc.h>
+#include <unistd.h>
+#include <stdio.h>
 
 /* JVLC internal imports, generated by gcjh */
 #include "../includes/Playlist.h"
@@ -111,6 +113,12 @@ JNIEXPORT void JNICALL Java_org_videolan_jvlc_Playlist__1stop (JNIEnv *env, jobj
     INIT_FUNCTION ;
 
     libvlc_playlist_stop( ( libvlc_instance_t* ) instance, exception );
+    
+    while ( libvlc_playlist_isplaying( (libvlc_instance_t*) instance, exception ) )
+    {
+        usleep(100);
+    }
+    
 
     CHECK_EXCEPTION_FREE ;
 }