propagate from branch 'i2p.i2p' (head 7f26a3df7f04d3c069c63b4633871bd7676f6167)

to branch 'i2p.i2p.zzz.test4' (head 91572937612227b99f41e7e170ae38574a001e7b)

core/java/src/net/i2p/data/DataHelper.java

@@ -535,6 +535,8 @@ public class DataHelper {
         else
             writeLong(out, DATE_LENGTH, date.getTime());
     }
+
+    /** @deprecated unused */
     public static byte[] toDate(Date date) throws IllegalArgumentException {
         if (date == null)
             return toLong(DATE_LENGTH, 0L);