diff --git a/src/main/entry/org/bdware/sc/bean/ContractDesp.java b/src/main/entry/org/bdware/sc/bean/ContractDesp.java
index cf6e228..21a4539 100644
--- a/src/main/entry/org/bdware/sc/bean/ContractDesp.java
+++ b/src/main/entry/org/bdware/sc/bean/ContractDesp.java
@@ -4,6 +4,7 @@ import org.bdware.sc.event.REvent;
 import org.bdware.sc.node.AnnotationNode;
 import org.bdware.sc.node.YjsType;
 
+import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -12,7 +13,7 @@ public class ContractDesp {
     public String contractID;
     public String contractName;
     public Map<String, REvent.REventSemantics> events;
-    public List<FunctionDesp> exportedFunctions;
+    public Collection<FunctionDesp> exportedFunctions;
     public ContractExecType type;
     public YjsType yjsType;
     public List<AnnotationNode> annotations;
diff --git a/src/main/entry/org/bdware/sc/bean/ContractExecType.java b/src/main/entry/org/bdware/sc/bean/ContractExecType.java
index 620e263..d6128c6 100644
--- a/src/main/entry/org/bdware/sc/bean/ContractExecType.java
+++ b/src/main/entry/org/bdware/sc/bean/ContractExecType.java
@@ -9,7 +9,8 @@ public enum ContractExecType implements Serializable {
     RequestAllResponseFirst,
     RequestAllResponseHalf,
     RequestAllResponseAll,
-    Sharding;//分片执行模式
+    Sharding,//分片执行模式
+    SelfAdaptiveSharding; // self-adaptive sharding
 
     public static ContractExecType getContractTypeByInt(int i) {
         ContractExecType[] values = ContractExecType.values();
@@ -25,10 +26,6 @@ public enum ContractExecType implements Serializable {
             case RequestOnce:
             case ResponseOnce:
                 return false;
-            case RequestAllResponseAll:
-            case RequestAllResponseFirst:
-            case RequestAllResponseHalf:
-            case Sharding:
             default:
                 break;
         }