Memory Footprint: UUID Conversion

Saving RAM by clearing data after it's no longer needed by UUID
conversion code.

src/me/ryanhamshire/GriefPrevention/DataStore.java

@@ -109,6 +109,12 @@ public abstract class DataStore
                 this.saveClaim(claim);
             }
             
+            //clean up any UUID conversion work
+            if(UUIDFetcher.lookupCache != null)
+            {
+                UUIDFetcher.lookupCache.clear();
+            }
+            
             GriefPrevention.AddLogEntry("Update finished.");
         }
 		

src/me/ryanhamshire/GriefPrevention/UUIDFetcher.java

@@ -26,7 +26,7 @@ class UUIDFetcher {
     private final boolean rateLimiting;
     
     //cache for username -> uuid lookups
-    private static HashMap<String, UUID> lookupCache;
+    static HashMap<String, UUID> lookupCache;
  
     public UUIDFetcher(List<String> names, boolean rateLimiting) {
         this.names = names;