diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/builder/el/LiteFlowChainELBuilder.java b/liteflow-core/src/main/java/com/yomahub/liteflow/builder/el/LiteFlowChainELBuilder.java
index f19286306..cad9d1161 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/builder/el/LiteFlowChainELBuilder.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/builder/el/LiteFlowChainELBuilder.java
@@ -275,11 +275,6 @@ public class LiteFlowChainELBuilder {
         }
     }
 
-	public LiteFlowChainELBuilder setElMd5(String md5) {
-		this.chain.setElMd5(md5);
-		return this;
-	}
-
 	public void build() {
 		this.chain.setRouteItem(this.route);
 		this.chain.setConditionList(this.conditionList);
diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/core/FlowExecutor.java b/liteflow-core/src/main/java/com/yomahub/liteflow/core/FlowExecutor.java
index 1648fa379..628d7f70b 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/core/FlowExecutor.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/core/FlowExecutor.java
@@ -266,9 +266,8 @@ public class FlowExecutor {
 	 *
 	 * @param elStr EL 表达式
 	 * @return LiteflowResponse
-	 * @throws ELParseException
 	 */
-	public LiteflowResponse execute2RespWithEL(String elStr) throws Exception {
+	public LiteflowResponse execute2RespWithEL(String elStr) {
 		return this.execute2RespWithEL(elStr, null, null, DefaultContext.class);
 	}
 
@@ -278,9 +277,8 @@ public class FlowExecutor {
 	 * @param elStr EL 表达式
 	 * @param param 入参
 	 * @return LiteflowResponse
-	 * @throws ELParseException
 	 */
-	public LiteflowResponse execute2RespWithEL(String elStr, Object param) throws Exception {
+	public LiteflowResponse execute2RespWithEL(String elStr, Object param) {
 		return this.execute2RespWithEL(elStr, param, null, DefaultContext.class);
 	}
 
@@ -292,9 +290,8 @@ public class FlowExecutor {
 	 * @param requestId             请求 ID
 	 * @param contextBeanClazzArray 上下文 Class
 	 * @return LiteflowResponse
-	 * @throws ELParseException
 	 */
-	public LiteflowResponse execute2RespWithEL(String elStr, Object param, String requestId, Class<?>... contextBeanClazzArray) throws Exception {
+	public LiteflowResponse execute2RespWithEL(String elStr, Object param, String requestId, Class<?>... contextBeanClazzArray) {
 		return this.execute2RespWithEL(elStr, param, requestId, contextBeanClazzArray, null);
 	}
 
@@ -306,9 +303,8 @@ public class FlowExecutor {
 	 * @param requestId        请求 ID
 	 * @param contextBeanArray 上下文对象
 	 * @return LiteflowResponse
-	 * @throws ELParseException
 	 */
-	public LiteflowResponse execute2RespWithEL(String elStr, Object param, String requestId, Object... contextBeanArray) throws Exception {
+	public LiteflowResponse execute2RespWithEL(String elStr, Object param, String requestId, Object... contextBeanArray) {
 		return this.execute2RespWithEL(elStr, param, requestId, null, contextBeanArray);
 	}
 
@@ -321,9 +317,8 @@ public class FlowExecutor {
 	 * @param contextBeanClazzArray 上下文 Class 数组
 	 * @param contextBeanArray      上下文对象数组
 	 * @return LiteflowResponse
-	 * @throws ELParseException
 	 */
-	private LiteflowResponse execute2RespWithEL(String elStr, Object param, String requestId, Class<?>[] contextBeanClazzArray, Object[] contextBeanArray) throws Exception {
+	private LiteflowResponse execute2RespWithEL(String elStr, Object param, String requestId, Class<?>[] contextBeanClazzArray, Object[] contextBeanArray) {
 		// 规范化 el 表达式
 		String normalizedEl = ElRegexUtil.normalize(elStr);
 
@@ -332,7 +327,7 @@ public class FlowExecutor {
 
 		if (!validationResp.isSuccess()) {
 			// 实际封装的是 ELParseException 类型
-			throw validationResp.getCause();
+			return LiteflowResponse.newMainResponse(validationResp.getCause());
 		}
 
 		// 计算 EL MD5 值，并检查对应的 chain 是否已加载到内存中
@@ -346,7 +341,6 @@ public class FlowExecutor {
 			LiteFlowChainELBuilder.createChain()
 					.setChainId(chainId)
 					.setEL(normalizedEl)
-					.setElMd5(elMd5)
 					.build();
 		}
 
diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/FlowBus.java b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/FlowBus.java
index 9448ceb69..52ba5cc46 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/FlowBus.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/FlowBus.java
@@ -45,6 +45,7 @@ import com.yomahub.liteflow.spi.holder.DeclComponentParserHolder;
 import com.yomahub.liteflow.util.CopyOnWriteHashMap;
 
 import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.stream.Collectors;
 
@@ -81,7 +82,7 @@ public class FlowBus {
 			chainMap = new CopyOnWriteHashMap<>();
 			nodeMap = new CopyOnWriteHashMap<>();
 			fallbackNodeMap = new CopyOnWriteHashMap<>();
-			elMd5Map = new CopyOnWriteHashMap<>();
+			elMd5Map = new ConcurrentHashMap<>();
 		}
 	}
 
diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/LiteflowResponse.java b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/LiteflowResponse.java
index 4c24df652..d5eec0e8e 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/flow/LiteflowResponse.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/flow/LiteflowResponse.java
@@ -5,9 +5,10 @@ import com.yomahub.liteflow.exception.LiteFlowException;
 import com.yomahub.liteflow.flow.entity.CmpStep;
 import com.yomahub.liteflow.slot.Slot;
 
-import java.io.Serializable;
-import java.util.*;
-import java.util.function.Consumer;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Queue;
 
 /**
  * 执行结果封装类
@@ -35,6 +36,12 @@ public class LiteflowResponse {
 		return newResponse(slot, slot.getException());
 	}
 
+	public static LiteflowResponse newMainResponse(Exception exception) {
+		LiteflowResponse response = new LiteflowResponse();
+		response.setExceptionParams(exception);
+		return response;
+	}
+
 	public static LiteflowResponse newInnerResponse(String chainId, Slot slot) {
 		return newResponse(slot, slot.getSubException(chainId));
 	}
@@ -42,20 +49,22 @@ public class LiteflowResponse {
 	private static LiteflowResponse newResponse(Slot slot, Exception e) {
 		LiteflowResponse response = new LiteflowResponse();
 		response.setChainId(slot.getChainId());
-		if (e != null) {
-			response.setSuccess(false);
-			response.setCause(e);
-			response.setMessage(response.getCause().getMessage());
-			response.setCode(response.getCause() instanceof LiteFlowException
-					? ((LiteFlowException) response.getCause()).getCode() : null);
-		}
-		else {
-			response.setSuccess(true);
-		}
+		response.setExceptionParams(e);
 		response.setSlot(slot);
 		return response;
 	}
 
+	private void setExceptionParams(Exception exception) {
+		if (exception != null) {
+			this.setSuccess(false);
+			this.setCause(exception);
+			this.setMessage(exception.getMessage());
+			this.setCode(exception instanceof LiteFlowException ? ((LiteFlowException) exception).getCode() : null);
+		} else {
+			this.setSuccess(true);
+		}
+	}
+
 	public boolean isSuccess() {
 		return success;
 	}