Fix OPENDJ-525: Remove compiler warnings when building using JDK7

Matthew Swift

19.26.2012 861c4b510223ddfeb68deabd5c4a0d309990a32c

 opendj-sdk/opends/src/server/org/opends/server/tools/EncodePassword.java

@@ -1184,7 +1184,7 @@
        try
        {
          // attempt masking at this rate
          this.sleep(1);
          Thread.sleep(1);
        }
        catch (InterruptedException iex)
        {