There are two places with tweaks for applets:

src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java [1]
            // Popups in applets don't activate applet's process
            styleBits = SET(styleBits, NONACTIVATING, true);
            styleBits = SET(styleBits, IS_POPUP, true);

src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java [2]
                        // Popups in applets don't activate applet's process
                        CWrapper.NSWindow.orderFrontRegardless(ptr);

These comments are removed in JDK-8359053 which removes applet support. With the applets gone, are this tweaks still needed? If not, we should remove them.

[1] https://github.com/openjdk/jdk/blob/42d3604a31c4e5b5391468ee1d2c88c23c54c1d9/src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java#L436-L438
[2] https://github.com/openjdk/jdk/blob/42d3604a31c4e5b5391468ee1d2c88c23c54c1d9/src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java#L717-L718