RFR: 8275345: RasterFormatException when drawing a tiled image made of non-writable rasters

[TheShermanTanker]

On Thu, 3 Feb 2022 15:26:40 GMT, Martin Desruisseaux <duke at openjdk.java.net> wrote:

> This commit fixes a `RasterFormatException` thrown when `Graphics2D.drawRenderedImage(…)` is invoked with an image containing tiles that are instances of `Raster` but not `WritableRaster`.
> 
> https://bugs.openjdk.java.net/browse/JDK-8275345

@desruisseaux 
You need to rename your PR title to just "8275345" and the title will automatically be renamed to the correct issue (and it will be marked as correctly linked), also you need to sign an agreement here: https://oca.opensource.oracle.com/, then type /signed as a reply to this PR (fair warning, the approval process takes pretty long)

-------------

PR: https://git.openjdk.java.net/jdk/pull/7337