Java JDK 20.0.1

What's new in this version:

Other Notes:
- client-libs/javax.swing
- ➜ System Property to Handle HTML ObjectView Creation (JDK-8296832 (Not Public))
- Some Swing components, such as JLabels and JButtons, which display application text, will try to interpret that text as HTML, principally to enable styled text. The HTML processing of the text for these components will no longer recognize the tag which allows for subclasses of java.awt.Component to be rendered on the component. To re-enable this, applications must specify -Dswing.html.object=true.
- security-libs/java.security
- ➜ Added Certigna(Dhimyotis) Root CA Certificate (JDK-8245654)

The following root certificate has been added to the cacerts truststore:
- + Certigna (Dhimyotis)
- + certignarootca
- DN: CN=Certigna, O=Dhimyotis, C=FR
- core-libs/java.io
- ➜ File::listRoots Changed to Return All Available Drives on Windows (JDK-8208077)
- The behavior of the method java.io.File.listRoots() on Microsoft Windows has changed in this release so that the returned array includes a File object for all available disk drives. This differs from the behavior in JDK 10 to JDK 20, where this method filtered out disk drives that were not accessible or did not have media present. This change avoids performance issues observed in the previous releases and also ensures that the method is consistent with the root directories in the iteration returned by FileSystem.getDefault().getRootDirectories().

Fixed:
- Crash in DumpTimeClassInfo::add_verification_constraint
- crash in SymbolTable::do_lookup
- cmp_baseline task failures with CDS files
- Enable Symbol refcounting underflow checks in PRODUCT
- tools/javac Incorrect desugaring of null-allowed nested patterns