RFR: 8222455: JavaFX error loading glass.dll from cache

[Kevin Rushforth]

On Tue, 26 Oct 2021 12:09:19 GMT, Marius Hanl <mhanl at openjdk.org> wrote:

> This problem can happen when using multiple instances with different jfx early access (ea) versions.
> 
> Example: 
> Instance 1 uses 18-ea+4 and Instance 2 uses 18-ea+1. 
> Instance 1 is started (and will cache and use libraries), then instance 2. 
> Now instance 2 detects via a hash comparison that the cached libraries are not the same as the supplied ones. 
> With this information instance 2 tries to delete the old libraries but fails while doing so (as instance 1 uses them currently) and will terminate right after.
> 
> The problem here is that instance 1 and 2 are using the same cache folder: **18-ea**. This is because the `NativeLibLoader` uses the `javafx.version` property for determining the folder name, which in case of an ea version will always be **18-ea** (for all ea versions starting with 18 obviously).
> 
> Fix as also mentioned in the ticket is to use the `javafx.runtime.version` property instead. 
> With this the folders will be named 18-ea+1 and 18-ea+4.

Marked as reviewed by kcr (Lead).

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PR: https://git.openjdk.java.net/jfx/pull/654