Android: Fix crashes due to insufficient resource cleanups

Task-number: QTBUG-37789

Change-Id: I9971fd1e9e63dedbbfe86e567e701bab688cf144
Reviewed-by: Christian Stromme <christian.stromme@digia.com>
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/src/plugins/position/android/src/jnipositioning.cpp b/src/plugins/position/android/src/jnipositioning.cpp
index 6b49b9fe..afae1c8e 100644
--- a/src/plugins/position/android/src/jnipositioning.cpp
+++ b/src/plugins/position/android/src/jnipositioning.cpp
@@ -167,7 +167,9 @@ namespace AndroidPositioning {
                 __android_log_print(ANDROID_LOG_INFO, logTag, "Unknown positioningMethod");
             }
         }
+
         env.jniEnv->ReleaseIntArrayElements(jProviders, providers, 0);
+        env.jniEnv->DeleteLocalRef(jProviders);
 
         return ret;
     }
@@ -261,6 +263,7 @@ namespace AndroidPositioning {
             info.setAttribute(QGeoPositionInfo::Direction, bearing);
         }
 
+        jniEnv->DeleteLocalRef(thisClass);
         return info;
     }
 
@@ -340,7 +343,10 @@ namespace AndroidPositioning {
         if (location == 0)
             return QGeoPositionInfo();
 
-        return positionInfoFromJavaLocation(env.jniEnv, location);
+        const QGeoPositionInfo info = positionInfoFromJavaLocation(env.jniEnv, location);
+        env.jniEnv->DeleteLocalRef(location);
+
+        return info;
     }
 
     inline int positioningMethodToInt(QGeoPositionInfoSource::PositioningMethods m)