Fix for https://bugs.openjdk.org/browse/JDK-8343224,
print/Dialog/PaperSizeError.java fails with MediaSizeName is not A4: A4.
**Reason of the bug:**
The reason for the regression bug is a missed check for the standard media
existence during CustomMediaSizeName creation.
After the JDK-7001133 new MediaSize is created, regardless of whether a
standard media size exists.
For example, if a printer's PPD has two media with the same size, close to
"iso_A4," with a small difference.
*PaperDimension A4/A4: "595 842"
*PaperDimension BrA4_B/A4 (Borderless): "595 842"
After processing the first line, the MediaSize will contain the new size "A4"
because of the missed check, and CustomMediaSize will match the "iso_a4"
standard media size.
After processing the second line, the MediaSize will contain the new size
"BrA4_B", and CustomMediaSize will match not the "iso_a4" but the previously
added "A4", because it was added by mistake and its size is exactly the same as
"BrA4_B".
**Fix description:**
Create new MediaSize if there is no any other MediaSize with the same size.
**Tests:**
OS: MacOS 12, Linux Ubuntu 22, Windows 11.
open/test/jdk/java/awt/print/Dialog/PaperSizeError.java
test/jdk/javax/print/CustomMediaSizeNameOOMETest.java
All tests from the test/jdk/javax/print/
-------------
Commit messages:
- Create MediaSize only if getStandardMedia is null
Changes: https://git.openjdk.org/jdk/pull/22429/files
Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22429&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8343224
Stats: 8 lines in 1 file changed: 1 ins; 0 del; 7 mod
Patch: https://git.openjdk.org/jdk/pull/22429.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/22429/head:pull/22429
PR: https://git.openjdk.org/jdk/pull/22429
