Style fixes

Change-Id: I883f68e6c9bbdc6ff845b1305f641f37dae323ef
Reviewed-on: http://gerrit.dmdirc.com/1320
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>

src/com/dmdirc/util/WeakList.java

 
     /** {@inheritDoc} */
     @Override
-    public <T> T[] toArray(final T[] a) {
+    public <S> S[] toArray(final S[] a) {
         return dereferenceList(list).toArray(a);
     }
 
     }
 
     /** {@inheritDoc} */
-    @Override @SuppressWarnings(value = "unchecked")
+    @Override
     public int indexOf(final Object o) {
         cleanUp();
 
     }
 
     /** {@inheritDoc} */
-    @Override @SuppressWarnings(value = "unchecked")
+    @Override
     public int lastIndexOf(final Object o) {
         cleanUp();