ffi/java: clean up JNI's local refs in android_app.nit

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/mnit_android/android_app.nit b/lib/mnit_android/android_app.nit
index 6a1fd89..a1dea52 100644 (file)
--- a/lib/mnit_android/android_app.nit
+++ b/lib/mnit_android/android_app.nit
@@ -680,18 +680,26 @@ redef class Sys
                // Return the values to Nit
                Sys_class_loader__assign(recv, JavaObject_as_nullable((*env)->NewGlobalRef(env, instance_class_loader)));
                Sys_class_loader_method__assign(recv, JMethodID_as_nullable(class_class_loader_findClass));
+
+               // Clean up
+               (*env)->DeleteLocalRef(env, class_activity);
+               (*env)->DeleteLocalRef(env, instance_class_loader);
+               (*env)->DeleteLocalRef(env, class_class_loader);
        `}
 
        private fun load_jclass_intern(instance_class_loader: JavaObject, class_loader_findClass: JMethodID, name: NativeString): JClass import jni_env `{
                JNIEnv *env = Sys_jni_env(recv);
-               
-               jclass java_class = (*env)->CallObjectMethod(env, instance_class_loader, class_loader_findClass, (*env)->NewStringUTF(env, name));
+               jobject class_name = (*env)->NewStringUTF(env, name);
+
+               jclass java_class = (*env)->CallObjectMethod(env, instance_class_loader, class_loader_findClass, class_name);
                if (java_class == NULL) {
                        __android_log_print(ANDROID_LOG_ERROR, "Nit", "loading targetted class");
                        (*env)->ExceptionDescribe(env);
                        exit(1);
                }
 
+               (*env)->DeleteLocalRef(env, class_name);
+
                return java_class;
        `}
 end