code: public String getProperty(String key, String defaultValue) {
  
  		String property = configProperties.getProperty(key, defaultValue);
  		if (property != null) {
  			property = property.trim();
  		}
  		return property;
  	}
docs: Returns the value of the property associated to the key passed in
  parameter
  
  @param key
  the key of the property
  @param defaultValue
  the default value
  @return the value of the property