src/org/redkale/util/Creator.java

@@ -5,10 +5,12 @@
 package org.redkale.util;
 
 import java.beans.*;
+import java.io.*;
 import java.lang.annotation.*;
 import static java.lang.annotation.ElementType.*;
 import static java.lang.annotation.RetentionPolicy.RUNTIME;
 import java.lang.reflect.*;
+import java.net.*;
 import java.util.*;
 import jdk.internal.org.objectweb.asm.*;
 import jdk.internal.org.objectweb.asm.Type;
@@ -132,13 +134,13 @@ public interface Creator<T> {
         } catch (Exception ex) {
         }
         Constructor<T> constructor0 = null;
-        for (Constructor c : clazz.getConstructors()) {
+        for (Constructor c : clazz.getConstructors()) {  //优先找public 的构造函数
             if (c.getParameterTypes().length == 0) { //为了兼容android 而不使用 getParameterCount()
                 constructor0 = c;
                 break;
             }
         }
-        if (constructor0 == null) {
+        if (constructor0 == null) {//其次找非private带ConstructorProperties的构造函数
             for (Constructor c : clazz.getDeclaredConstructors()) {
                 if (Modifier.isPrivate(c.getModifiers())) continue;
                 if (c.getAnnotation(ConstructorProperties.class) != null) {
@@ -147,6 +149,13 @@ public interface Creator<T> {
                 }
             }
         }
+        if (constructor0 == null) {//最后找非private的构造函数
+            for (Constructor c : clazz.getDeclaredConstructors()) {
+                if (Modifier.isPrivate(c.getModifiers())) continue;
+                constructor0 = c;
+                break;
+            }
+        }
         final Constructor<T> constructor = constructor0;
         if (constructor == null) throw new RuntimeException("[" + clazz + "] have no public or java.beans.ConstructorProperties-Annotation constructor.");
         //-------------------------------------------------------------
@@ -270,13 +279,41 @@ public interface Creator<T> {
         }
         cw.visitEnd();
         final byte[] bytes = cw.toByteArray();
+        final boolean ispub = Modifier.isPublic(constructor.getModifiers());
+        Class<?> resultClazz = null;
+        if (loader instanceof URLClassLoader && !ispub) {
+            try {
+                final URLClassLoader urlLoader = (URLClassLoader) loader;
+                final URL url = new URL("memclass", "localhost", -1, "/" + newDynName.replace('/', '.') + "/", new URLStreamHandler() {
+                    @Override
+                    protected URLConnection openConnection(URL u) throws IOException {
+                        return new URLConnection(u) {
+                            @Override
+                            public void connect() throws IOException {
+                            }
+
+                            @Override
+                            public InputStream getInputStream() throws IOException {
+                                return new ByteArrayInputStream(bytes);
+                            }
+                        };
+                    }
+                });
+                Method addURLMethod = URLClassLoader.class.getDeclaredMethod("addURL", URL.class);
+                addURLMethod.setAccessible(true);
+                addURLMethod.invoke(urlLoader, url);
+                resultClazz = urlLoader.loadClass(newDynName.replace('/', '.'));
+            } catch (Throwable t) { //异常无需理会， 使用下一种loader方式
+                t.printStackTrace();
+            }
+        }
         try {
-            if (!Modifier.isPublic(constructor.getModifiers())) throw new RuntimeException("[" + clazz + "] have no public or java.beans.ConstructorProperties-Annotation constructor.");
-            Class<?> resultClazz = new ClassLoader(loader) {
-                public final Class<?> loadClass(String name, byte[] b) {
-                    return defineClass(name, b, 0, b.length);
-                }
-            }.loadClass(newDynName.replace('/', '.'), bytes);
+            if (!ispub) throw new RuntimeException("[" + clazz + "] have no public or java.beans.ConstructorProperties-Annotation constructor.");
+            if (resultClazz == null) resultClazz = new ClassLoader(loader) {
+                    public final Class<?> loadClass(String name, byte[] b) {
+                        return defineClass(name, b, 0, b.length);
+                    }
+                }.loadClass(newDynName.replace('/', '.'), bytes);
             return (Creator) resultClazz.newInstance();
         } catch (Exception ex) {
             throw new RuntimeException(ex);