enjoy 3.3 release ^_^

src/main/java/com/jfinal/template/expr/ast/FieldKit.java

@@ -17,21 +17,21 @@
 package com.jfinal.template.expr.ast;
 
 import java.lang.reflect.Field;
-import java.util.concurrent.ConcurrentHashMap;
+import java.util.HashMap;
 
 /**
  * FieldKit
  */
 public class FieldKit {
 	
-	private static final ConcurrentHashMap<String, Object> fieldCache = new ConcurrentHashMap<String, Object>();
+	private static final HashMap<Long, Object> fieldCache = new HashMap<Long, Object>();
 	
-	public static Field getField(String key, Class<?> targetClass, String fieldName) {
+	public static Field getField(Long key, Class<?> targetClass, String fieldName) {
 		Object field = fieldCache.get(key);
 		if (field == null) {
 			field = doGetField(targetClass, fieldName);
 			if (field != null) {
-				fieldCache.putIfAbsent(key, field);
+				fieldCache.put(key, field);
 			} else {
 				// 对于不存在的 Field，只进行一次获取操作，主要为了支持 null safe，未来需要考虑内存泄漏风险
 				fieldCache.put(key, Boolean.FALSE);
@@ -49,14 +49,6 @@ public class FieldKit {
 		}
 		return null;
 	}
-	
-	/**
-	 * 获取 Field 用于缓存的 key
-	 */
-	public static String getFieldKey(Class<?> targetClass, String getterName) {
-        return new StringBuilder(64).append(targetClass.getName())
-        		.append('.').append(getterName).toString();
-    }
 }