@Override
public synchronized Image getCustomAuthorCover(String author) {
+ if (authorCovers == null) {
+ authorCovers = new HashMap<String, Image>();
+ }
+
+ Image img = authorCovers.get(author);
+ if (img != null) {
+ return img;
+ }
+
File cover = getAuthorCoverFile(author);
if (cover.exists()) {
InputStream in;