RFR: 8279214: Memory leak in Scene after dragging a cell

Tue Nov 22 09:36:31 UTC 2022

On Wed, 14 Sep 2022 18:44:14 GMT, Marius Hanl <mhanl at openjdk.org> wrote:

> This PR fixes a memory leak in dnd code in the `MouseHandler` of a `Scene`.
> The memory leak occurs after calling `startFullDrag()`. The `fullPDRTmpTargetWrapper` is then populated but never cleared.
> Fix is to call `clear()` on the `fullPDRTmpTargetWrapper`, very similar to https://github.com/openjdk/jfx/pull/448 ([JDK-8264330](https://bugs.openjdk.java.net/browse/JDK-8264330)).

Looks good to me too. 
`fullPDRTmpTargetWrapper` gets cleared both before and after gesture.

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Marked as reviewed by arapte (Reviewer).

PR: https://git.openjdk.org/jfx/pull/899