diff --git a/src/notifybyandroid.cpp b/src/notifybyandroid.cpp
index 6d2a6a4..6aba3f7 100644
--- a/src/notifybyandroid.cpp
+++ b/src/notifybyandroid.cpp
@@ -1,166 +1,167 @@
 /*
     Copyright (C) 2018 Volker Krause <vkrause@kde.org>
 
     This program is free software; you can redistribute it and/or modify it
     under the terms of the GNU Library General Public License as published by
     the Free Software Foundation; either version 2 of the License, or (at your
     option) any later version.
 
     This program is distributed in the hope that it will be useful, but WITHOUT
     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
     License for more details.
 
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
 #include "notifybyandroid.h"
 #include "knotification.h"
 #include "knotifyconfig.h"
 #include "debug_p.h"
 
 #include <QtAndroid>
 #include <QAndroidJniEnvironment>
 
 #include <QBuffer>
 #include <QDebug>
 #include <QIcon>
 
 static NotifyByAndroid *s_instance = nullptr;
 
 static void notificationFinished(JNIEnv *env, jobject that, jint notificationId)
 {
     Q_UNUSED(env);
     Q_UNUSED(that);
     if (s_instance) {
         s_instance->notificationFinished(notificationId);
     }
 }
 
 static void notificationActionInvoked(JNIEnv *env, jobject that, jint id, jint action)
 {
     Q_UNUSED(env);
     Q_UNUSED(that);
     if (s_instance) {
         s_instance->notificationActionInvoked(id, action);
     }
 }
 
 static const JNINativeMethod methods[] = {
     {"notificationFinished", "(I)V", (void*)notificationFinished},
     {"notificationActionInvoked", "(II)V", (void*)notificationActionInvoked}
 };
 
 KNOTIFICATIONS_EXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void*)
 {
     static bool initialized = false;
     if (initialized) {
         return JNI_VERSION_1_4;
     }
     initialized = true;
 
     JNIEnv *env = nullptr;
     if (vm->GetEnv((void**)&env, JNI_VERSION_1_4) != JNI_OK) {
         qCWarning(LOG_KNOTIFICATIONS) << "Failed to get JNI environment.";
         return -1;
     }
     jclass cls = env->FindClass("org/kde/knotifications/NotifyByAndroid");
     if (env->RegisterNatives(cls, methods, sizeof(methods) / sizeof(JNINativeMethod)) < 0) {
         qCWarning(LOG_KNOTIFICATIONS) << "Failed to register native functions.";
         return -1;
     }
 
     return JNI_VERSION_1_4;
 }
 
 NotifyByAndroid::NotifyByAndroid(QObject* parent) :
     KNotificationPlugin(parent)
 {
     s_instance = this;
     m_backend = QAndroidJniObject("org/kde/knotifications/NotifyByAndroid", "(Landroid/content/Context;)V", QtAndroid::androidContext().object<jobject>());
 }
 
 NotifyByAndroid::~NotifyByAndroid()
 {
     s_instance = nullptr;
 }
 
 QString NotifyByAndroid::optionName()
 {
     return QStringLiteral("Popup");
 }
 
 void NotifyByAndroid::notify(KNotification *notification, KNotifyConfig *config)
 {
     Q_UNUSED(config);
     // HACK work around that notification->id() is only populated after returning from here
     // note that config will be invalid at that point, so we can't pass that along
     QMetaObject::invokeMethod(this, [this, notification](){ notifyDeferred(notification); }, Qt::QueuedConnection);
 }
 
 void NotifyByAndroid::notifyDeferred(KNotification* notification)
 {
     KNotifyConfig config(notification->appName(), notification->contexts(), notification->eventId());
     QAndroidJniEnvironment env;
 
     QAndroidJniObject n("org/kde/knotifications/KNotification", "()V");
     n.setField("id", notification->id());
     n.setField("text", QAndroidJniObject::fromString(notification->text()).object<jstring>());
     n.setField("title", QAndroidJniObject::fromString(notification->title()).object<jstring>());
 
     n.setField("channelId", QAndroidJniObject::fromString(notification->eventId()).object<jstring>());
     n.setField("channelName", QAndroidJniObject::fromString(config.readEntry(QLatin1String("Name"))).object<jstring>());
     n.setField("channelDescription", QAndroidJniObject::fromString(config.readEntry(QLatin1String("Comment"))).object<jstring>());
 
     // icon
     QPixmap pixmap;
     if (!notification->iconName().isEmpty()) {
         const auto icon = QIcon::fromTheme(notification->iconName());
         pixmap = icon.pixmap(32, 32);
     } else {
         pixmap = notification->pixmap();
     }
     QByteArray iconData;
     QBuffer buffer(&iconData);
     buffer.open(QIODevice::WriteOnly);
     pixmap.save(&buffer, "PNG");
     auto jIconData = env->NewByteArray(iconData.length());
     env->SetByteArrayRegion(jIconData, 0, iconData.length(), reinterpret_cast<const jbyte*>(iconData.constData()));
     n.callMethod<void>("setIconFromData", "([BI)V", jIconData, iconData.length());
+    env->DeleteLocalRef(jIconData);
 
     // actions
     const auto actions = notification->actions();
     for (const auto &action : actions) {
         n.callMethod<void>("addAction", "(Ljava/lang/String;)V", QAndroidJniObject::fromString(action).object<jstring>());
     }
 
     m_notifications.insert(notification->id(), notification);
 
     m_backend.callMethod<void>("notify", "(Lorg/kde/knotifications/KNotification;)V", n.object<jobject>());
 }
 
 void NotifyByAndroid::close(KNotification* notification)
 {
     m_backend.callMethod<void>("close", "(I)V", notification->id());
     KNotificationPlugin::close(notification);
 }
 
 void NotifyByAndroid::notificationFinished(int id)
 {
     qCDebug(LOG_KNOTIFICATIONS) << id;
     const auto it = m_notifications.find(id);
     if (it == m_notifications.end()) {
         return;
     }
     m_notifications.erase(it);
     if (it.value()) {
         finish(it.value());
     }
 }
 
 void NotifyByAndroid::notificationActionInvoked(int id, int action)
 {
     qCDebug(LOG_KNOTIFICATIONS) << id << action;
     emit actionInvoked(id, action);
 }