This commit amends 850a7f1238.
We can't extract the parentId for the hidden object on Java side,
because the Java call is executed in a separate thread, so the
original hidden object can be destroyed somewhere in the middle of
parentId() call.
As a workaround, we get the parentId in advance, on C++ side, and pass
it as a parameter to JNI function.
Task-number: QTBUG-95764
Pick-to: 6.3 6.2 5.15
Change-Id: Ied2ab4ab39b947f3f582575cf77cc76fbac9e274
Reviewed-by: Jarkko Koivikko <jarkko.koivikko@code-q.fi>
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
Reviewed-by: Rami Potinkara <rami.potinkara@qt.io>
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>