Some macosx-specific java code contains conditions flagged by the javac -Xlint:auxiliaryclass,empty flags, preventing those flags from being used in the build of the jdk repo:

/opt/jprt/T/P1/233622.juh/s/jdk/src/macosx/classes/com/apple/eawt/_AppEventHandler.java:267: warning: auxiliary class _OpenAppHandler in /opt/jprt/T/P1/233622.juh/s/jdk/src/macosx/classes/com/apple/eawt/_AppEventLegacyHandler.java should not be accessed from outside its own source file
    class _OpenAppDispatcher extends _QueuingAppEventDispatcher<com.apple.eawt._OpenAppHandler> {
                                                                              ^
/opt/jprt/T/P1/233622.juh/s/jdk/src/macosx/classes/com/apple/eawt/_AppEventHandler.java:268: warning: auxiliary class _OpenAppHandler in /opt/jprt/T/P1/233622.juh/s/jdk/src/macosx/classes/com/apple/eawt/_AppEventLegacyHandler.java should not be accessed from outside its own source file
        void performUsing(com.apple.eawt._OpenAppHandler handler, _NativeEvent event) {
                                        ^
error: warnings found and -Werror specified
/opt/jprt/T/P1/233622.juh/s/jdk/src/macosx/classes/com/apple/laf/AquaFileChooserUI.java:1138: warning: auxiliary class AquaComboBoxRendererInternal in /opt/jprt/T/P1/233622.juh/s/jdk/src/macosx/classes/com/apple/laf/AquaComboBoxRenderer.java should not be accessed from outside its own source file
        return new AquaComboBoxRendererInternal(directoryComboBox) {
                   ^
/opt/jprt/T/P1/233622.juh/s/jdk/src/macosx/classes/com/apple/laf/AquaFileChooserUI.java:1249: warning: auxiliary class AquaComboBoxRendererInternal in /opt/jprt/T/P1/233622.juh/s/jdk/src/macosx/classes/com/apple/laf/AquaComboBoxRenderer.java should not be accessed from outside its own source file
        return new AquaComboBoxRendererInternal(filterComboBox) {
                   ^
/opt/jprt/T/P1/233622.juh/s/jdk/src/macosx/classes/com/apple/laf/AquaMenuBarUI.java:76: warning: [empty] empty statement after if
            if (setScreenMenuBar((JFrame)(c.getTopLevelAncestor()))) ;
                                                                     ^

These warning categories should be cleared in this code so the entire jdk repo can be protected by these javac checks.

See related build-dev thread:
    http://mail.openjdk.java.net/pipermail/build-dev/2013-August/009795.html
    http://mail.openjdk.java.net/pipermail/build-dev/2013-September/010050.html