To reproduce this do the following on macOS 10.15 Catalina:

1. Build the jdk with Xcode 11 and MacOSX SDK 10.15.

2. Run any Java program that draws text, for example, the attached Simple.java program:

$ java -version
java version "15-internal" 2020-09-15
Java(TM) SE Runtime Environment (build 15-internal+0-2020-05-07-1853296.kcr...)
Java HotSpot(TM) 64-Bit Server VM (build 15-internal+0-2020-05-07-1853296.kcr..., mixed mode, sharing)

$ java Simple
2020-05-07 13:18:45.444 java[16424:4942077] CoreText note: Client requested name ".SFNS-Regular", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2020-05-07 13:18:45.444 java[16424:4942077] CoreText note: Set a breakpoint on CTFontLogSystemFontNameRequest to debug.
2020-05-07 13:18:45.445 java[16424:4942077] CoreText note: Client requested name ".SFNS-Bold", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2020-05-07 13:18:45.446 java[16424:4942077] CoreText note: Client requested name ".SFNSMono-Regular", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2020-05-07 13:18:45.452 java[16424:4942077] CoreText note: Client requested name ".SFNSMono-Regular", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2020-05-07 13:18:45.453 java[16424:4942077] CoreText note: Client requested name ".SFNSMono-Regular", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2020-05-07 13:18:45.458 java[16424:4942077] CoreText note: Client requested name ".SFNS-Regular", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2020-05-07 13:18:45.458 java[16424:4942077] CoreText note: Client requested name ".SFNS-Bold", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].