diff --git a/hutool-http/src/main/java/org/dromara/hutool/http/client/engine/httpclient4/HttpClient4Engine.java b/hutool-http/src/main/java/org/dromara/hutool/http/client/engine/httpclient4/HttpClient4Engine.java
index 7edcaf3ff..d4a46f726 100644
--- a/hutool-http/src/main/java/org/dromara/hutool/http/client/engine/httpclient4/HttpClient4Engine.java
+++ b/hutool-http/src/main/java/org/dromara/hutool/http/client/engine/httpclient4/HttpClient4Engine.java
@@ -63,7 +63,9 @@ public class HttpClient4Engine implements ClientEngine {
 	 * 构造
 	 */
 	public HttpClient4Engine() {
-		//initEngine();
+		// issue#IABWBL JDK8下，在IDEA旗舰版加载Spring boot插件时，启动应用不会检查字段类是否存在
+		// 此处构造时调用下这个类，以便触发类是否存在的检查
+		Assert.notNull(CloseableHttpClient.class);
 	}
 
 	@Override
diff --git a/hutool-http/src/main/java/org/dromara/hutool/http/client/engine/httpclient5/HttpClient5Engine.java b/hutool-http/src/main/java/org/dromara/hutool/http/client/engine/httpclient5/HttpClient5Engine.java
index b2f40cbc8..7eba98e2b 100644
--- a/hutool-http/src/main/java/org/dromara/hutool/http/client/engine/httpclient5/HttpClient5Engine.java
+++ b/hutool-http/src/main/java/org/dromara/hutool/http/client/engine/httpclient5/HttpClient5Engine.java
@@ -67,7 +67,9 @@ public class HttpClient5Engine implements ClientEngine {
 	 * 构造
 	 */
 	public HttpClient5Engine() {
-		//initEngine();
+		// issue#IABWBL JDK8下，在IDEA旗舰版加载Spring boot插件时，启动应用不会检查字段类是否存在
+		// 此处构造时调用下这个类，以便触发类是否存在的检查
+		Assert.notNull(CloseableHttpClient.class);
 	}
 
 	@Override
diff --git a/hutool-http/src/main/java/org/dromara/hutool/http/client/engine/okhttp/OkHttpEngine.java b/hutool-http/src/main/java/org/dromara/hutool/http/client/engine/okhttp/OkHttpEngine.java
index b44e7a5f9..f972090a4 100644
--- a/hutool-http/src/main/java/org/dromara/hutool/http/client/engine/okhttp/OkHttpEngine.java
+++ b/hutool-http/src/main/java/org/dromara/hutool/http/client/engine/okhttp/OkHttpEngine.java
@@ -14,6 +14,7 @@ package org.dromara.hutool.http.client.engine.okhttp;
 
 import okhttp3.OkHttpClient;
 import org.dromara.hutool.core.io.IORuntimeException;
+import org.dromara.hutool.core.lang.Assert;
 import org.dromara.hutool.core.util.ObjUtil;
 import org.dromara.hutool.http.client.ClientConfig;
 import org.dromara.hutool.http.client.Request;
@@ -44,7 +45,9 @@ public class OkHttpEngine implements ClientEngine {
 	 * 构造
 	 */
 	public OkHttpEngine() {
-		//initEngine();
+		// issue#IABWBL JDK8下，在IDEA旗舰版加载Spring boot插件时，启动应用不会检查字段类是否存在
+		// 此处构造时调用下这个类，以便触发类是否存在的检查
+		Assert.notNull(OkHttpEngine.class);
 	}
 
 	@Override