Merge branch 'ssu-sync-fix' into 'master'

lock locked_shouldSend on this

See merge request i2p-hackers/i2p.i2p!3

router/java/src/net/i2p/router/transport/udp/PeerState.java

@@ -1662,9 +1662,10 @@ public class PeerState {
     }
     
     /**
-     *  Caller should synch
+     *  Locks this.
      */
     private boolean locked_shouldSend(OutboundMessageState state, long now, boolean resetWindow) {
+        synchronized(this) {
             if (allocateSendingBytes(state, now, resetWindow)) {
                 if (_log.shouldLog(Log.DEBUG))
                     _log.debug(_remotePeer + " Allocation allowed with " 
@@ -1684,6 +1685,7 @@ public class PeerState {
                 return false;
             }
         }
+    }
     
     /**
      *  A full ACK was received.