Check if SelMahumDrill event receiver is attackable before class cast.

L2J_Mobius_1.0_Ertheia/dist/game/data/scripts/ai/areas/SelMahumTrainingGrounds/SelMahumDrill.java

@@ -220,6 +220,10 @@ public class SelMahumDrill extends AbstractNpcAI
 				}
 				case "CHIEF_DIED":
 				{
+					if (!receiver.isAttackable())
+					{
+						return null;
+					}
 					if (CommonUtil.contains(MAHUM_SOLDIERS, receiver.getId()))
 					{
 						if (getRandom(4) < 1)

L2J_Mobius_2.5_Underground/dist/game/data/scripts/ai/areas/SelMahumTrainingGrounds/SelMahumDrill.java

@@ -220,6 +220,10 @@ public class SelMahumDrill extends AbstractNpcAI
 				}
 				case "CHIEF_DIED":
 				{
+					if (!receiver.isAttackable())
+					{
+						return null;
+					}
 					if (CommonUtil.contains(MAHUM_SOLDIERS, receiver.getId()))
 					{
 						if (getRandom(4) < 1)

L2J_Mobius_3.0_Helios/dist/game/data/scripts/ai/areas/SelMahumTrainingGrounds/SelMahumDrill.java

@@ -220,6 +220,10 @@ public class SelMahumDrill extends AbstractNpcAI
 				}
 				case "CHIEF_DIED":
 				{
+					if (!receiver.isAttackable())
+					{
+						return null;
+					}
 					if (CommonUtil.contains(MAHUM_SOLDIERS, receiver.getId()))
 					{
 						if (getRandom(4) < 1)

L2J_Mobius_4.0_GrandCrusade/dist/game/data/scripts/ai/areas/SelMahumTrainingGrounds/SelMahumDrill.java

@@ -220,6 +220,10 @@ public class SelMahumDrill extends AbstractNpcAI
 				}
 				case "CHIEF_DIED":
 				{
+					if (!receiver.isAttackable())
+					{
+						return null;
+					}
 					if (CommonUtil.contains(MAHUM_SOLDIERS, receiver.getId()))
 					{
 						if (getRandom(4) < 1)

L2J_Mobius_5.0_Salvation/dist/game/data/scripts/ai/areas/SelMahumTrainingGrounds/SelMahumDrill.java

@@ -220,6 +220,10 @@ public class SelMahumDrill extends AbstractNpcAI
 				}
 				case "CHIEF_DIED":
 				{
+					if (!receiver.isAttackable())
+					{
+						return null;
+					}
 					if (CommonUtil.contains(MAHUM_SOLDIERS, receiver.getId()))
 					{
 						if (getRandom(4) < 1)

L2J_Mobius_5.5_EtinasFate/dist/game/data/scripts/ai/areas/SelMahumTrainingGrounds/SelMahumDrill.java

@@ -220,6 +220,10 @@ public class SelMahumDrill extends AbstractNpcAI
 				}
 				case "CHIEF_DIED":
 				{
+					if (!receiver.isAttackable())
+					{
+						return null;
+					}
 					if (CommonUtil.contains(MAHUM_SOLDIERS, receiver.getId()))
 					{
 						if (getRandom(4) < 1)

L2J_Mobius_6.0_Fafurion/dist/game/data/scripts/ai/areas/SelMahumTrainingGrounds/SelMahumDrill.java

@@ -220,6 +220,10 @@ public class SelMahumDrill extends AbstractNpcAI
 				}
 				case "CHIEF_DIED":
 				{
+					if (!receiver.isAttackable())
+					{
+						return null;
+					}
 					if (CommonUtil.contains(MAHUM_SOLDIERS, receiver.getId()))
 					{
 						if (getRandom(4) < 1)

L2J_Mobius_7.0_PreludeOfWar/dist/game/data/scripts/ai/areas/SelMahumTrainingGrounds/SelMahumDrill.java

@@ -221,6 +221,10 @@ public class SelMahumDrill extends AbstractNpcAI
 				}
 				case "CHIEF_DIED":
 				{
+					if (!receiver.isAttackable())
+					{
+						return null;
+					}
 					if (CommonUtil.contains(MAHUM_SOLDIERS, receiver.getId()))
 					{
 						if (getRandom(4) < 1)

L2J_Mobius_CT_2.6_HighFive/dist/game/data/scripts/ai/areas/SelMahumTrainingGrounds/SelMahumDrill.java

@@ -220,6 +220,10 @@ public class SelMahumDrill extends AbstractNpcAI
 				}
 				case "CHIEF_DIED":
 				{
+					if (!receiver.isAttackable())
+					{
+						return null;
+					}
 					if (CommonUtil.contains(MAHUM_SOLDIERS, receiver.getId()))
 					{
 						if (getRandom(4) < 1)