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

Matthew Swift

19.26.2012 861c4b510223ddfeb68deabd5c4a0d309990a32c

 opendj-sdk/opends/src/guitools/org/opends/guitools/controlpanel/ui/DeleteBackendPanel.java

@@ -111,6 +111,7 @@
    ProgressDialog progressDialog = new ProgressDialog(
        Utilities.createFrame(),
        Utilities.getParentDialog(this), getTitle(), getInfo());
    @SuppressWarnings("deprecation")
    Object[] backends = list.getSelectedValues();
    ArrayList<BackendDescriptor> backendsToDelete =
      new ArrayList<BackendDescriptor>();