fix: ensure JNIEnv is properly attached before deleting global reference 146

Author: devopvoid

webrtc-jni/src/main/cpp/dependencies/jni-voithos/include/JavaRef.h

@@ -269,12 +269,10 @@ namespace jni
 			void deleteGlobalRef()
 			{
 				if (this->obj != nullptr) {
-					JNIEnv * env = nullptr;
-
-					if (env) {
+					JNIEnv * env = AttachCurrentThread();
+					if (env != nullptr) {
 						env->DeleteGlobalRef(this->obj);
 					}
-
 					this->obj = nullptr;
 				}
 			}

webrtc-jni/src/main/cpp/src/JNI_RTCPeerConnection.cpp

@@ -605,6 +605,7 @@ JNIEXPORT void JNICALL Java_dev_onvoid_webrtc_RTCPeerConnection_close
 		auto observer = GetHandle<webrtc::PeerConnectionObserver>(env, caller, "observerHandle");
 
 		if (observer) {
+		    SetHandle<std::nullptr_t>(env, caller, "observerHandle", nullptr);
 			delete observer;
 		}
 	}