Changed serialVersionUID in the serialization of font-cache and some minor related changes

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1373227 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/fop/fonts/FontCache.java

      * Serialization Version UID. Change this value if you want to make sure the
      * user's cache file is purged after an update.
      */
-    private static final long serialVersionUID = 605232520271754719L;
+    private static final long serialVersionUID = 9129238336422194339L;
 
     /** logging instance */
     private static Log log = LogFactory.getLog(FontCache.class);
     private static final String DEFAULT_CACHE_FILENAME = "fop-fonts.cache";
 
     /** has this cache been changed since it was last read? */
-    private transient boolean changed = false;
+    private transient boolean changed;
 
     /** change lock */
     private final boolean[] changeLock = new boolean[1];
     /**
      * master mapping of font url -> font info. This needs to be a list, since a
      * TTC file may contain more than 1 font.
+     * @serial
      */
     private Map<String, CachedFontFile> fontfileMap = null;
 
     /**
      * mapping of font url -> file modified date (for all fonts that have failed
      * to load)
+     * @serial
      */
     private Map<String, Long> failedFontMap = null;
 
      *
      * @return the font cache deserialized from the file (or null if no cache
      *         file exists or if it could not be read)
+     * @deprecated use {@link #loadFrom(File)} instead
      */
     public static FontCache load() {
         return loadFrom(getDefaultCacheFile(false));
     /**
      * Writes the font cache to disk.
      *
-     * @throws FOPException
-     *             fop exception
+     * @throws FOPException fop exception
+     * @deprecated use {@link #saveTo(File)} instead
      */
     public void save() throws FOPException {
         saveTo(getDefaultCacheFile(true));