* cleanups

src/forge/BoosterDraftAI.java

@@ -127,8 +127,8 @@ public class BoosterDraftAI
     	}
     }
     else {
-    	CardList typeList = new CardList();
-    	CardList colorList = new CardList();
+    	CardList typeList;
+    	CardList colorList;
     	
     	colorList = AIPlayables.getOnly2Colors(playerColors.get(player).Color1, playerColors.get(player).Color2);
     	

src/forge/ComputerUtil_Block2.java

@@ -104,7 +104,7 @@ public class ComputerUtil_Block2
 		  CardList blockers = getPossibleBlockers(attacker, blockersLeft, combat);
 		   
 		  CardList safeBlockers = getSafeBlockers(attacker, blockers, combat);
-		  CardList killingBlockers = new CardList();
+		  CardList killingBlockers;
 		   
 		  if(safeBlockers.size() > 0) {
 			  // 1.Blockers that can destroy the attacker but won't get destroyed 
@@ -143,7 +143,7 @@ public class ComputerUtil_Block2
 	   
 	  CardList currentAttackers = new CardList(attackersLeft.toArray());
 	  currentAttackers = currentAttackers.getKeywordsDontContain("Rampage"); 
-	  CardList blockers = new CardList();
+	  CardList blockers;
 	  
 	  //Try to block an attacker without first strike with a gang of first strikers
 	  for (Card attacker : attackersLeft) {
@@ -181,7 +181,7 @@ public class ComputerUtil_Block2
 	  //Try to block an attacker with two blockers of which only one will die
 	  for(final Card attacker : attackersLeft) {
 		  blockers = getPossibleBlockers(attacker, blockersLeft, combat);
-		  CardList usableBlockers = new CardList();
+		  CardList usableBlockers;
 		  CardList blockGang = new CardList();
 		  int absorbedDamage = 0; //The amount of damage needed to kill the first blocker
 		  int currentValue = 0; //The value of the creatures in the blockgang
@@ -234,7 +234,7 @@ public class ComputerUtil_Block2
    private static Combat makeTradeBlocks(Combat combat){
 	   
 	  CardList currentAttackers = new CardList(attackersLeft.toArray());
-	  CardList killingBlockers = new CardList();
+	  CardList killingBlockers;
 	  
 	  for(Card attacker : attackersLeft) {
 		  killingBlockers = 
@@ -254,7 +254,7 @@ public class ComputerUtil_Block2
    private static Combat makeChumpBlocks(Combat combat){
 	   
 	  CardList currentAttackers = new CardList(attackersLeft.toArray());
-	  CardList chumpBlockers = new CardList();
+	  CardList chumpBlockers;
 	  
 	  for(Card attacker : attackersLeft) {
 		  chumpBlockers = getPossibleBlockers(attacker, blockersLeft, combat);
@@ -273,7 +273,7 @@ public class ComputerUtil_Block2
    //Reinforce blockers blocking attackers with trample (should only be made if life is in danger)
    private static Combat reinforceBlockersAgainstTrample(Combat combat){
 	   
-	  CardList chumpBlockers = new CardList();
+	  CardList chumpBlockers;
 	  
 	  CardList tramplingAttackers = attackers.getKeyword("Trample");
 	  tramplingAttackers = tramplingAttackers.getKeywordsDontContain("Rampage"); 	//Don't make it worse
@@ -299,8 +299,8 @@ public class ComputerUtil_Block2
    //Support blockers not destroying the attacker with more blockers to try to kill the attacker
    private static Combat reinforceBlockersToKill(Combat combat){
 	   
-	  CardList safeBlockers = new CardList();
-	  CardList blockers = new CardList();
+	  CardList safeBlockers;
+	  CardList blockers;
 	  CardList targetAttackers = blockedButUnkilled.getKeywordsDontContain("Rampage"); 	//Don't make it worse
 	  //TODO - should check here for a "rampage-like" trigger that replaced the keyword:
 	  // "Whenever CARDNAME becomes blocked, it gets +1/+1 until end of turn for each creature blocking it."
@@ -372,8 +372,8 @@ public class ComputerUtil_Block2
 	  attackersLeft = new CardList(attackers.toArray()); //keeps track of all currently unblocked attackers
 	  blockersLeft = new CardList(possibleBlockers.toArray()); //keeps track of all unassigned blockers
 	  blockedButUnkilled = new CardList(); //keeps track of all blocked attackers that currently wouldn't be destroyed
-	  CardList blockers = new CardList();
-	  CardList chumpBlockers = new CardList();
+	  CardList blockers;
+	  CardList chumpBlockers;
 	  
 	  diff = AllZone.ComputerPlayer.getLife() * 2 - 5; //This is the minimal gain for an unnecessary trade 
 	  

src/forge/card/abilityFactory/AbilityFactory_ChangeZone.java

@@ -525,7 +525,7 @@ public class AbilityFactory_ChangeZone {
             if (fetchList.size() == 0 || destination == null) 
                 break;
                 
-            Object o = new Object();
+            Object o;
             if (params.containsKey("Mandatory"))
                 o = GuiUtils.getChoice("Select a card", fetchList.toArray());
             else

src/forge/card/abilityFactory/AbilityFactory_Destroy.java

@@ -509,7 +509,7 @@ public class AbilityFactory_Destroy {
 		 if (tgt != null)
 		 	tgtCards = tgt.getTargetCards();
 		 else{
-		 	tgtCards = new ArrayList<Card>();
+			tgtCards = new ArrayList<Card>(); 
 		 	tgtCards.add(sa.getSourceCard());
 		 }
 		 

src/forge/card/abilityFactory/AbilityFactory_PermanentState.java

@@ -519,7 +519,6 @@ public class AbilityFactory_PermanentState {
 		if (tgt != null)
 			tgtCards = tgt.getTargetCards();
 		else{
-			tgtCards = new ArrayList<Card>();
 			tgtCards = AbilityFactory.getDefinedCards(hostCard, params.get("Defined"), sa);
 		}
 		

src/forge/card/abilityFactory/AbilityFactory_Reveal.java

@@ -905,7 +905,7 @@ public class AbilityFactory_Reveal {
 	private static String rearrangeTopOfLibraryStackDescription(final AbilityFactory AF, final SpellAbility sa)
 	{
 		int numCards = 0;
-		ArrayList<Player> tgtPlayers = new ArrayList<Player>();
+		ArrayList<Player> tgtPlayers;
 		boolean shuffle = false;
 
 		Target tgt = AF.getAbTgt();

src/forge/card/mana/ManaPool.java

@@ -89,7 +89,7 @@ public class ManaPool extends Card {
         else
         	return ("|||||||||||");
 
-        return sbNormal.toString() + sbSnow.toString();
+        return sbNormal.append(sbSnow).toString();
     	
     }
     
@@ -132,7 +132,7 @@ public class ManaPool extends Card {
         sbNormal.insert(0, "Mana Available:\n");
         sbSnow.insert(0, "Snow Mana Available:\n");
 
-        return sbNormal.toString() + "\n" + sbSnow.toString();
+        return sbNormal.append("\n").append(sbSnow).toString();
     }
     
     public int getAmountOfColor(String color){