From 0c05b6b466cd729019aacba53f97c144112aebb1 Mon Sep 17 00:00:00 2001
From: Oleg <ev.mipt@gmail.com>
Date: Thu, 8 Jul 2021 15:04:48 +0300
Subject: [PATCH] Android: Serial port fix possible crash

Delete the local JNI reference after use to fix possible crashes after some time periodically scanning ports on several android devices:
JNI ERROR (app bug): local reference table overflow (max=512)
---
 libs/qtandroidserialport/src/qserialportinfo_android.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libs/qtandroidserialport/src/qserialportinfo_android.cpp b/libs/qtandroidserialport/src/qserialportinfo_android.cpp
index 1580189..db368bd 100644
--- a/libs/qtandroidserialport/src/qserialportinfo_android.cpp
+++ b/libs/qtandroidserialport/src/qserialportinfo_android.cpp
@@ -86,6 +86,7 @@ QList<QSerialPortInfo> availablePortsByFiltersOfDevices(bool &ok)
         //__android_log_print(ANDROID_LOG_INFO, V_TAG, "Adding device: %s", rawStringL);
         QStringList strListL = QString::fromUtf8(rawStringL).split(QStringLiteral(":"));
         envL->ReleaseStringUTFChars(stringL, rawStringL);
+        envL->DeleteLocalRef(stringL);
 
         priv.portName               = strListL[0];
         priv.device                 = strListL[0];