JDK-4668963 : Metal on windows should not default to picking up system font sizes
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Picking up font sizes, by default for metal on Windows, has the ability to break backwards
compatability. If developers want this they should set a system property.
BugTraq+ Release Management Values
COMMIT TO FIX:
Yes, the default will be false and developers can enable this with the system property swing.useSystemFontSettings=true. Additionally you will have to set this to true if you want the high contrast theme picked up as well (assuming the user has chosen it on the desktop).