doccheck reports the following:
pi/java.desktop/javax/imageio/plugins/tiff/ExifTIFFTagSet.html: HTTP status 502 Unknown: http://www.exif.org/Exif2-2.PDF
    Also found in api/java.desktop/javax/imageio/metadata/doc-files/tiff_metadata.html
api/java.desktop/javax/swing/class-use/LayoutStyle.html: HTTP status 404 Not Found: http://www.oracle.com/technetwork/java/hig-136467.html
    Also found in api/java.desktop/javax/swing/plaf/metal/MetalLookAndFeel.html
api/java.desktop/javax/swing/plaf/multi/doc-files/multi_tsc.html: HTTP status 404 Not Found: http://www.oracle.com/technetwork/java/javase/tech/articles-jsp-139072.html
api/java.desktop/java/awt/doc-files/AWTThreadIssues.html: HTTP status 404 Not Found: https://bugs.java.com/view_bug.do?bug_id=4030718
api/java.desktop/java/awt/doc-files/AWTThreadIssues.html: HTTP status 404 Not Found: https://bugs.java.com/view_bug.do?bug_id=4465537
api/java.desktop/java/awt/doc-files/AWTThreadIssues.html: HTTP status 404 Not Found: https://bugs.java.com/view_bug.do?bug_id=4515058
api/java.desktop/java/awt/doc-files/AWTThreadIssues.html: HTTP status 404 Not Found: https://bugs.java.com/view_bug.do?bug_id=4671025