Thank you for taking the time to investigate and report this. Indeed JEP-263 makes clear that there is no support for Linux on OpenJDK. The linked bugs to that JEP also indicates that Windows is not supported yet. Only OSX has high DPI support.
The answers to the superuser.com question indicates that tuxjdk _might_ have fixes for at least the font aliasing issue, but some users report that it didn't work for them. This will require additional tests, including tests with GDK_SCALE or Gnome's scaling-factor setting to simulate a high dpi display. Additional information will be added to this bug as the investigation proceeds.
Michael,
Thank you for taking the time to investigate and report this. Indeed JEP-263 makes clear that there is no support for Linux on OpenJDK. The linked bugs to that JEP also indicates that Windows is not supported yet. Only OSX has high DPI support.
Are you able to reproduce the issue with the simple java test case reported at https:/ /bugs.openjdk. java.net/ browse/ JDK-8058742 ?
The answers to the superuser.com question indicates that tuxjdk _might_ have fixes for at least the font aliasing issue, but some users report that it didn't work for them. This will require additional tests, including tests with GDK_SCALE or Gnome's scaling-factor setting to simulate a high dpi display. Additional information will be added to this bug as the investigation proceeds.