metaspace内存持续上涨 (#3299)

* metaspace内存持续上涨

* 重复加载testcase

* Update ObjectWriterProviderTest.java

Author: LSL-cloud

core/src/main/java/com/alibaba/fastjson2/writer/ObjectWriterProvider.java

@@ -397,6 +397,11 @@ private ObjectWriter getObjectWriterInternal(Type objectType, Class objectClass,
                 if (objectWriter != null) {
                     return objectWriter;
                 }
+            } else {
+                objectWriter = cache.get(objectType);
+                if (objectWriter != null) {
+                    return objectWriter;
+                }
             }
         }
 

core/src/test/java/com/alibaba/fastjson2/write/ObjectWriterProviderTest.java

@@ -6,8 +6,13 @@
 import com.alibaba.fastjson2.writer.ObjectWriter;
 import com.alibaba.fastjson2.writer.ObjectWriterProvider;
 import org.junit.jupiter.api.Test;
+import org.springframework.cglib.proxy.Enhancer;
+import org.springframework.cglib.proxy.MethodInterceptor;
+import org.springframework.cglib.proxy.MethodProxy;
 
+import java.lang.reflect.Method;
 import java.lang.reflect.Type;
+import java.util.concurrent.TimeUnit;
 
 import static org.junit.jupiter.api.Assertions.*;
 
@@ -131,9 +136,28 @@ public void testWriter2() {
         assertSame(writer1, JSON.registerIfAbsent(Bean.class, writer, false));
     }
 
+    @Test
+    public void testWriterProxy() throws InterruptedException {
+        Enhancer enhancer = new Enhancer();
+        enhancer.setSuperclass(Bean.class);
+        enhancer.setCallback(new BeanMethodInterceptor());
+        Object proxy1 = enhancer.create();
+        JSON.toJSONString(proxy1);
+        JSON.toJSONString(proxy1);
+        TimeUnit.MINUTES.sleep(60);
+    }
+
     public static class Bean {
     }
 
+    public static class BeanMethodInterceptor implements MethodInterceptor {
+
+        @Override
+        public Object intercept(Object o, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable {
+            return methodProxy.invokeSuper(o, objects);
+        }
+    }
+
     public static class BeanWriter
             implements ObjectWriter {
         @Override