From ed449159883226a0f4627422768439f8589f00cf Mon Sep 17 00:00:00 2001
From: chiba <chiba@30ef5769-5b8d-40dd-aea6-55b5d6557bb3>
Date: Thu, 18 Sep 2008 17:32:08 +0000
Subject: [PATCH] for fixing JASSIST-66

git-svn-id: http://anonsvn.jboss.org/repos/javassist/trunk@458 30ef5769-5b8d-40dd-aea6-55b5d6557bb3
---
 .../javassist/util/proxy/ProxyFactory.java    | 33 ++++++++++++++++---
 .../javassist/util/proxy/RuntimeSupport.java  | 20 +++++++++++
 2 files changed, 48 insertions(+), 5 deletions(-)

diff --git a/src/main/javassist/util/proxy/ProxyFactory.java b/src/main/javassist/util/proxy/ProxyFactory.java
index 5d0c70f8..8d96cd2a 100644
--- a/src/main/javassist/util/proxy/ProxyFactory.java
+++ b/src/main/javassist/util/proxy/ProxyFactory.java
@@ -827,7 +827,7 @@ public class ProxyFactory {
         /*
          * if (methods[index * 2] == null) {
          *   methods[index * 2]
-         *     = RuntimeSupport.findMethod(this, <overridden name>, <desc>);
+         *     = RuntimeSupport.findSuperMethod(this, <overridden name>, <desc>);
          *   methods[index * 2 + 1]
          *     = RuntimeSupport.findMethod(this, <delegator name>, <desc>);
          *     or = null // the original method is abstract.
@@ -840,7 +840,10 @@ public class ProxyFactory {
         int arrayVar = args + 1;
         code.addGetstatic(thisClassName, HOLDER, HOLDER_TYPE);
         code.addAstore(arrayVar);
-        code.addAload(arrayVar);
+
+        callFind2Methods(code, meth.getName(), delegatorName, origIndex, desc, arrayVar);
+
+        /* code.addAload(arrayVar);
         code.addIconst(origIndex);
         code.addOpcode(Opcode.AALOAD);
         code.addOpcode(Opcode.IFNONNULL);
@@ -851,7 +854,8 @@ public class ProxyFactory {
         callFindMethod(code, "findMethod", arrayVar, delIndex, delegatorName, desc);
 
         int pc2 = code.currentPc();
-        code.write16bit(pc, pc2 - pc + 1);
+        code.write16bit(pc, pc2 - pc + 1);*/
+
         code.addAload(0);
         code.addGetfield(thisClassName, HANDLER, HANDLER_TYPE);
         code.addAload(0);
@@ -874,10 +878,10 @@ public class ProxyFactory {
 
         CodeAttribute ca = code.toCodeAttribute();
         forwarder.setCodeAttribute(ca);
-        StackMapTable.Writer writer = new StackMapTable.Writer(32);
+        /*StackMapTable.Writer writer = new StackMapTable.Writer(32);
         writer.appendFrame(pc2, new int[] { StackMapTable.OBJECT },
                            new int[] { cp.addClassInfo(HOLDER_TYPE) });
-        ca.setAttribute(writer.toStackMapTable(cp));
+        ca.setAttribute(writer.toStackMapTable(cp));*/
         return forwarder;
     }
 
@@ -1010,6 +1014,25 @@ public class ProxyFactory {
         code.addOpcode(Opcode.AASTORE);
     }
 
+    private static void callFind2Methods(Bytecode code, String superMethod, String thisMethod,
+                                         int index, String desc, int arrayVar) {
+        String findClass = RuntimeSupport.class.getName();
+        String findDesc
+            = "(Ljava/lang/Object;Ljava/lang/String;Ljava/lang/String;ILjava/lang/String;[Ljava/lang/reflect/Method;)V";
+
+        code.addAload(0);
+        code.addLdc(superMethod);
+        if (thisMethod == null)
+            code.addOpcode(Opcode.ACONST_NULL);
+        else
+            code.addLdc(thisMethod);
+
+        code.addIconst(index);
+        code.addLdc(desc);
+        code.addAload(arrayVar);
+        code.addInvokestatic(findClass, "find2Methods", findDesc);
+    }
+
     private static void addUnwrapper(Bytecode code, Class type) {
         if (type.isPrimitive()) {
             if (type == Void.TYPE)
diff --git a/src/main/javassist/util/proxy/RuntimeSupport.java b/src/main/javassist/util/proxy/RuntimeSupport.java
index f647fce5..79251a9c 100644
--- a/src/main/javassist/util/proxy/RuntimeSupport.java
+++ b/src/main/javassist/util/proxy/RuntimeSupport.java
@@ -38,6 +38,26 @@ public class RuntimeSupport {
         }
     };
 
+    /**
+     * Finds two methods specified by the parameters and stores them
+     * into the given array.
+     *
+     * @throws RuntimeException     if the methods are not found.
+     * @see javassist.util.proxy.ProxyFactory
+     */
+    public static void find2Methods(Object self, String superMethod,
+                                    String thisMethod, int index,
+                                    String desc, java.lang.reflect.Method[] methods)
+    {
+        synchronized (methods) {
+            if (methods[index] == null) {
+                methods[index + 1] = thisMethod == null ? null
+                                     : findMethod(self, thisMethod, desc);
+                methods[index] = findSuperMethod(self, superMethod, desc);
+            }
+        }
+    }
+
     /**
      * Finds a method with the given name and descriptor.
      * It searches only the class of self.
-- 
2.39.5