fix code

hutool-core/src/main/java/cn/hutool/core/reflect/FieldUtil.java

@@ -84,7 +84,7 @@ public class FieldUtil {
 	public static Field getDeClearField(final Class<?> beanClass, final String name) {
 		try {
 			return beanClass.getDeclaredField(name);
-		} catch (NoSuchFieldException e) {
+		} catch (final NoSuchFieldException e) {
 			return null;
 		}
 	}
@@ -124,7 +124,7 @@ public class FieldUtil {
 	 * 获得一个类中所有满足条件的字段列表，包括其父类中的字段<br>
 	 * 如果子类与父类中存在同名字段，则这两个字段同时存在，子类字段在前，父类字段在后。
 	 *
-	 * @param beanClass   类
+	 * @param beanClass      类
 	 * @param fieldPredicate field过滤器，过滤掉不需要的field，{@link Predicate#test(Object)}为{@code true}保留，null表示全部保留
 	 * @return 字段列表
 	 * @throws SecurityException 安全检查异常
@@ -254,6 +254,17 @@ public class FieldUtil {
 		setFieldValue(obj, field, value);
 	}
 
+	/**
+	 * 设置静态（static）字段值
+	 *
+	 * @param field 字段
+	 * @param value 值，值类型必须与字段类型匹配，不会自动转换对象类型
+	 * @throws UtilException UtilException 包装IllegalAccessException异常
+	 */
+	public static void setStaticFieldValue(final Field field, final Object value) throws UtilException {
+		setFieldValue(null, field, value);
+	}
+
 	/**
 	 * 设置字段值
 	 *

hutool-http/src/main/java/cn/hutool/http/HttpGlobalConfig.java

@@ -1,17 +1,11 @@
 package cn.hutool.http;
 
-import cn.hutool.core.reflect.FieldUtil;
-import cn.hutool.core.util.ArrayUtil;
 import cn.hutool.core.util.RandomUtil;
 import cn.hutool.http.client.cookie.GlobalCookieManager;
 
 import java.io.Serializable;
-import java.lang.reflect.Field;
-import java.lang.reflect.Modifier;
 import java.net.CookieManager;
 import java.net.HttpURLConnection;
-import java.security.AccessController;
-import java.security.PrivilegedAction;
 
 /**
  * HTTP 全局参数配置
@@ -31,7 +25,6 @@ public class HttpGlobalConfig implements Serializable {
 	 * 底层调用：{@link HttpURLConnection#setConnectTimeout(int)} 同时设置: 连接超时
 	 */
 	private static int timeout = -1;
-	private static boolean isAllowPatch = false;
 	private static String boundary = "--------------------Hutool_" + RandomUtil.randomString(16);
 	private static int maxRedirectCount = 0;
 	private static boolean ignoreEOFError = true;
@@ -182,48 +175,4 @@ public class HttpGlobalConfig implements Serializable {
 	synchronized public static void closeCookie() {
 		GlobalCookieManager.setCookieManager(null);
 	}
-
-	/**
-	 * 增加支持的METHOD方法<br>
-	 * 此方法通过注入方式修改{@link HttpURLConnection}中的methods静态属性，增加PATCH方法<br>
-	 * see: <a href="https://stackoverflow.com/questions/25163131/httpurlconnection-invalid-http-method-patch">https://stackoverflow.com/questions/25163131/httpurlconnection-invalid-http-method-patch</a>
-	 */
-	public static void allowPatch(){
-		AccessController.doPrivileged((PrivilegedAction<Object>) () -> {
-			doAllowPatch();
-			return null;
-		});
-	}
-
-	/**
-	 * 增加支持的METHOD方法<br>
-	 * 此方法通过注入方式修改{@link HttpURLConnection}中的methods静态属性，增加PATCH方法<br>
-	 * see: <a href="https://stackoverflow.com/questions/25163131/httpurlconnection-invalid-http-method-patch">https://stackoverflow.com/questions/25163131/httpurlconnection-invalid-http-method-patch</a>
-	 *
-	 * @since 5.7.4
-	 */
-	synchronized private static void doAllowPatch() {
-		if (isAllowPatch) {
-			return;
-		}
-		final Field methodsField = FieldUtil.getField(HttpURLConnection.class, "methods");
-		if (null == methodsField) {
-			throw new HttpException("None static field [methods] with Java version: [{}]", System.getProperty("java.version"));
-		}
-
-		// 去除final修饰
-		FieldUtil.setFieldValue(methodsField, "modifiers", methodsField.getModifiers() & ~Modifier.FINAL);
-		final String[] methods = {
-				"GET", "POST", "HEAD", "OPTIONS", "PUT", "DELETE", "TRACE", "PATCH"
-		};
-		FieldUtil.setFieldValue(null, methodsField, methods);
-
-		// 检查注入是否成功
-		final Object staticFieldValue = FieldUtil.getStaticFieldValue(methodsField);
-		if (false == ArrayUtil.equals(methods, staticFieldValue)) {
-			throw new HttpException("Inject value to field [methods] failed!");
-		}
-
-		isAllowPatch = true;
-	}
 }

hutool-http/src/main/java/cn/hutool/http/client/engine/jdk/HttpConnection.java

@@ -5,10 +5,9 @@ import cn.hutool.core.net.url.URLUtil;
 import cn.hutool.core.reflect.FieldUtil;
 import cn.hutool.core.text.StrUtil;
 import cn.hutool.core.util.ObjUtil;
-import cn.hutool.http.meta.Header;
 import cn.hutool.http.HttpException;
-import cn.hutool.http.HttpGlobalConfig;
 import cn.hutool.http.HttpUtil;
+import cn.hutool.http.meta.Header;
 import cn.hutool.http.meta.Method;
 import cn.hutool.http.ssl.DefaultSSLInfo;
 
@@ -125,7 +124,7 @@ public class HttpConnection {
 
 			// 增加PATCH方法支持
 			if (Method.PATCH.equals(method)) {
-				HttpGlobalConfig.allowPatch();
+				HttpUrlConnectionUtil.allowPatch();
 			}
 		}
 

hutool-http/src/main/java/cn/hutool/http/client/engine/jdk/HttpUrlConnectionUtil.java

@@ -0,0 +1,58 @@
+package cn.hutool.http.client.engine.jdk;
+
+import cn.hutool.core.reflect.FieldUtil;
+import cn.hutool.core.reflect.ModifierUtil;
+import cn.hutool.core.util.ArrayUtil;
+import cn.hutool.core.util.SystemUtil;
+import cn.hutool.http.HttpException;
+
+import java.lang.reflect.Field;
+import java.net.HttpURLConnection;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+
+/**
+ * 针对{@link HttpURLConnection}相关工具
+ *
+ * @author looly
+ * @since 6.0.0
+ */
+public class HttpUrlConnectionUtil {
+
+	private static final String[] METHODS = {
+			"GET", "POST", "HEAD", "OPTIONS", "PUT", "DELETE", "TRACE", "PATCH"
+	};
+
+	/**
+	 * 增加支持的METHOD方法<br>
+	 * 此方法通过注入方式修改{@link HttpURLConnection}中的methods静态属性，增加PATCH方法<br>
+	 * see: <a href="https://stackoverflow.com/questions/25163131/httpurlconnection-invalid-http-method-patch">https://stackoverflow.com/questions/25163131/httpurlconnection-invalid-http-method-patch</a>
+	 */
+	public static void allowPatch() {
+		AccessController.doPrivileged((PrivilegedAction<Object>) () -> {
+			doAllowPatch();
+			return null;
+		});
+	}
+
+	/**
+	 * 增加支持的METHOD方法<br>
+	 * 此方法通过注入方式修改{@link HttpURLConnection}中的methods静态属性，增加PATCH方法<br>
+	 * see: <a href="https://stackoverflow.com/questions/25163131/httpurlconnection-invalid-http-method-patch">https://stackoverflow.com/questions/25163131/httpurlconnection-invalid-http-method-patch</a>
+	 *
+	 * @since 5.7.4
+	 */
+	synchronized private static void doAllowPatch() {
+		final Field methodsField = FieldUtil.getField(HttpURLConnection.class, "methods");
+		if (null == methodsField) {
+			throw new HttpException("None static field [methods] with Java version: [{}]", SystemUtil.get("java.version"));
+		}
+
+		final Object staticFieldValue = FieldUtil.getStaticFieldValue(methodsField);
+		if (false == ArrayUtil.equals(METHODS, staticFieldValue)) {
+			// 去除final修饰
+			ModifierUtil.removeFinalModify(methodsField);
+			FieldUtil.setStaticFieldValue(methodsField, METHODS);
+		}
+	}
+}