RFR: 8278595: Provide more information when a pipeline can't be used [v2]

[Kevin Rushforth]

On Mon, 13 Dec 2021 16:31:46 GMT, Johan Vos <jvos at openjdk.org> wrote:

>> This PR provides at least some basic information when a pipeline can't be used. 
>> There are a number of reasons why a candidate pipeline can't be used, and this PR makes it clear at which point the pipeline fails. 
>> 
>> The changes are only applied in case `prism.verbose` is already set to `true`, so there is no unwanted logging.
>
> Johan Vos has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix (minor) formatting issues.

Marked as reviewed by kcr (Lead).

modules/javafx.graphics/src/main/java/com/sun/prism/GraphicsPipeline.java line 239:

> 237:                 if (PrismSettings.verbose) {
> 238:                     System.err.println("GraphicsPipeline.createPipeline: error" +
> 239:                                        " initializing pipeline "+ className);

Since you fixed one minor preexisting formatting issue with a missing space before the `+`, do you want to fix the one on the next line (239), too?

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PR: https://git.openjdk.java.net/jfx/pull/693