Empty party null leader check.

L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/Party.java

@@ -1087,6 +1087,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/Party.java

@@ -1087,6 +1087,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/Party.java

@@ -1087,6 +1087,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/Party.java

@@ -1087,6 +1087,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/Party.java

@@ -1076,6 +1076,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/Party.java

@@ -1076,6 +1076,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/Party.java

@@ -1076,6 +1076,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/Party.java

@@ -1083,6 +1083,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_CT_2.4_Epilogue/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -67,6 +67,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_CT_2.4_Epilogue/java/org/l2jmobius/gameserver/model/Party.java

@@ -955,6 +955,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -67,6 +67,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/Party.java

@@ -973,6 +973,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/Party.java

@@ -1087,6 +1087,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/Party.java

@@ -1087,6 +1087,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/Party.java

@@ -1087,6 +1087,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/Party.java

@@ -1087,6 +1087,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/Party.java

@@ -1087,6 +1087,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/Party.java

@@ -1087,6 +1087,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}
 	

L2J_Mobius_Classic_Interlude/java/org/l2jmobius/gameserver/model/AbstractPlayerGroup.java

@@ -68,6 +68,11 @@ public abstract class AbstractPlayerGroup
 	 */
 	public int getLeaderObjectId()
 	{
+		final PlayerInstance leader = getLeader();
+		if (leader == null)
+		{
+			return 0;
+		}
 		return getLeader().getObjectId();
 	}
 	

L2J_Mobius_Classic_Interlude/java/org/l2jmobius/gameserver/model/Party.java

@@ -1087,6 +1087,10 @@ public class Party extends AbstractPlayerGroup
 	@Override
 	public PlayerInstance getLeader()
 	{
+		if (_members.isEmpty())
+		{
+			return null;
+		}
 		return _members.get(0);
 	}