[jdk18u] RFR: 8284023: java.sun.awt.X11GraphicsDevice.getDoubleBufferVisuals() leaks XdbeScreenVisualInfo

[Phil Race]

On Fri, 22 Apr 2022 12:45:51 GMT, Zhengyu Gu <zgu at openjdk.org> wrote:

> A clean, low risk backport to fix a memory leak.

Note that this will trigger the same scenario as the fix did in mainline : fix for that proposed here : https://github.com/openjdk/jdk/pull/8493/files

However since it is a very theoretical issue, I think the leak fix can take precedent.

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PR: https://git.openjdk.java.net/jdk18u/pull/105