Product Version = NetBeans IDE 7.4 (Build 201310111528)
Operating System = Linux version 3.2.0-57-generic running on amd64
Java; VM; Vendor = 1.7.0_45
Runtime = Java HotSpot(TM) 64-Bit Server VM 24.45-b08

"Introduce Constant" places the new constant immediately following the method from which it was extracted. 7.3 placed it at the top of the class.  If it is supposed to follow the ordereing set in Tools -> Options -> Editor -> Formatting -> Java -> Ordering  that is not working, as "Static Fields" is the first thing in that list for me.

Example - Before Refactoring
  private void createModelServers() {
    modelServers = new JSONListTableModel();
    
    modelServers.addColumn("hostname", "Server", 0.10, String.class);
    modelServers.addColumn("rolename", "Role", 0.10, String.class);
    
    tableServers.setColumnsVersion(3);
    tableServers.setModel(modelServers);
  }

After Refactoring
  private void createModelServers() {
    modelServers = new JSONListTableModel();
    
    modelServers.addColumn("hostname", "Server", 0.10, String.class);
    modelServers.addColumn(COL_ROLENAME, "Role", 0.10, String.class);
    
    tableServers.setColumnsVersion(3);
    tableServers.setModel(modelServers);
  }
  private static final String COL_ROLENAME = "rolename";