Replace code that manually operates on jarray with QJniArray.
The comment about using separate jobject and QJniObject didn't make
sense; we didn't construct the QJniObject via fromLocalRef(), so
allocated a new local reference anyway, in addition to the local
reference returned by GetObjectArrayElement.
The implicit code now creates a QJniObject (-like object;
QtJniTypes::String contains a QJniObject) as well, but it's also
just a temporary. It would be cheaper to iterate over a
QJniArray<jstring>, but only if we then duplicate the code from
QJniObject::toString to not create an intermediate QJniObject.
Change-Id: I9f10541f533dd2fbd2f7ba6fdacc7d79b3ac3ae9
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
(cherry picked from commit 64127a7a0db657cbc844938f02b623f90cdd78ee)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
aaeb4970fd