fix: small fix to uml

diagram_class.puml

@@ -16,8 +16,8 @@ package eirb.pg203.weather {
       }
 
       class WeatherDataCache {
-        + private HashMap<String,WeatherDataCache.CacheValue> {final} cache
-        + private long {static} {final} cacheTTL
+        - private HashMap<String,WeatherDataCache.CacheValue> cache
+        - private long cacheTTL
         + boolean has(String cityName, int day)
         + boolean needsUpdate(String cityName, int day)
         + void set(String cityName, int day, WeatherData value, Instant timestamp)
@@ -26,7 +26,7 @@ package eirb.pg203.weather {
       }
 
       abstract class WeatherCachedAPI implements WeatherDataAPI {
-        ~ WeatherDataCache {final} cache
+        - private WeatherDataCache cache
         + JSONArray toJSON()
         + void loadCache(JSONArray data)
         + void loadCacheFromFile(String path)
@@ -35,13 +35,13 @@ package eirb.pg203.weather {
       }
 
       Class OpenMeteo extends WeatherCachedAPI {
-        - String {final} forecastBaseUrl
-        - String {final} daylyQuery
+        - String forecastBaseUrl
+        - String daylyQuery
         ~ JSONFetcher JSONFetcher
         ~ Clock clock
         - JSONObject fetchWeather(int days, City city)
         - Condition {static} getConditionFromCode(int WMOCode)
-        - WeatherData getWeatherDataFromForecast(JSONObject response, int day, String city)
+        - ArrayList<WeatherData> getWeatherDataFromForecast(JSONObject response, int day, String city)
       }
       
       Class OpenWeatherMap extends WeatherCachedAPI {

src/main/java/eirb/pg203/weather/data/api/WeatherDataCache.java

@@ -60,7 +60,7 @@ public class WeatherDataCache {
   }
 
   private final HashMap<String, CacheValue> cache = new HashMap<>();
-  private static final long cacheTTL = 3600;  // Cache data Time To Live in sec
+  private final long cacheTTL = 3600;  // Cache data Time To Live in sec
 
 	private String makeKey(String cityName, int day) {
 		return String.format(Locale.ENGLISH, "%s%d", cityName, day);