Java options should only be exported on Linux.

zsh/exports/70-java-options.zsh

@@ -1,7 +1,10 @@
 # Java-specific exports.
 # More or less pretty fonts in Java programs.
 # It should be exported only if we have X session running.
-if [ ! -z ${DISPLAY} ]; then
+# Also, these settings should be applied only on Linux.
+if [[ "${OS}" == "Linux" ]]; then
+    if [ ! -z ${DISPLAY} ]; then
         export _JAVA_OPTIONS='-Dawt.useSystemAAFontSettings=on -Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel'
         export JAVA_FONTS=/usr/share/fonts/TTF
+    fi
 fi