Strings are immutable in Java, so the trim() method on strings returns
a value of the trimmed value. PropertiesUtil ignores the return 
value and uses the original (untrimmed) value. Therefore effect-dead 
code unless the "nextValue.trim()" is not rephrased to 
"nextValue = nextValue.trim()".

   public static Properties trim(Properties properties)
    {
        Properties trimmedProperties = new Properties();

        // Loop over all the properties
        for (Iterator i = properties.keySet().iterator(); i.hasNext();)
        {
            String next = (String) i.next();
            String nextValue = properties.getProperty(next);

            // Trim the value if it is not null
            if (nextValue != null)
            {
                nextValue.trim();
            }

            // Store the trimmed value in the trimmed properties
            trimmedProperties.setProperty(next, nextValue);
        }

        return trimmedProperties;
    }