v0.9.0a: added some null safety checks

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Spinner.java

@@ -145,6 +145,7 @@ public class Spinner extends Mob {
 	
 	public int webPos(){
 
+		Char enemy = this.enemy;
 		if (enemy == null) return -1;
 		
 		Ballistica b;

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/rings/RingOfWealth.java

@@ -154,6 +154,7 @@ public class RingOfWealth extends Ring {
 	private static int latestDropTier = 0;
 
 	public static void showFlareForBonusDrop( Visual vis ){
+		if (vis == null) return;
 		switch (latestDropTier){
 			default:
 				break; //do nothing

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/services/news/News.java

@@ -71,7 +71,7 @@ public class News {
 	private static ArrayList<NewsArticle> articles;
 
 	public static synchronized boolean articlesAvailable(){
-		return articles != null;
+		return articles != null && !articles.isEmpty();
 	}
 
 	public static synchronized ArrayList<NewsArticle> articles(){