From 5b19b17d7bce56352d1f9989010bce1c9f71d127 Mon Sep 17 00:00:00 2001
From: rfield <unknown>
Date: Fri, 12 Apr 2013 10:02:33 -0700
Subject: [PATCH] 8011805: Update sun.tools.java class file reading/writing
 support to include the new constant pool entries Reviewed-by: mduigou, alanb

---
 .../invoke/InnerClassLambdaMetafactory.java   |   2 +-
 .../sun/tools/java/BinaryConstantPool.java    |  24 +++
 .../sun/tools/java/RuntimeConstants.java      |   3 +
 test/sun/tools/java/CFCTest.java              | 181 ++++++++++++++++++
 4 files changed, 209 insertions(+), 1 deletion(-)
 create mode 100644 test/sun/tools/java/CFCTest.java

diff --git a/src/share/classes/java/lang/invoke/InnerClassLambdaMetafactory.java b/src/share/classes/java/lang/invoke/InnerClassLambdaMetafactory.java
index f7191f767..9134bcf22 100644
--- a/src/share/classes/java/lang/invoke/InnerClassLambdaMetafactory.java
+++ b/src/share/classes/java/lang/invoke/InnerClassLambdaMetafactory.java
@@ -184,7 +184,7 @@ import java.security.PrivilegedAction;
         for (int i=0; i<markerInterfaces.length; i++) {
             interfaces[i+1] = markerInterfaces[i].getName().replace('.', '/');
         }
-        cw.visit(CLASSFILE_VERSION, ACC_SUPER,
+        cw.visit(CLASSFILE_VERSION, ACC_SUPER + ACC_FINAL,
                  lambdaClassName, null,
                  NAME_MAGIC_ACCESSOR_IMPL, interfaces);
 
diff --git a/src/share/classes/sun/tools/java/BinaryConstantPool.java b/src/share/classes/sun/tools/java/BinaryConstantPool.java
index 768af6751..ff67c4dd2 100644
--- a/src/share/classes/sun/tools/java/BinaryConstantPool.java
+++ b/src/share/classes/sun/tools/java/BinaryConstantPool.java
@@ -87,6 +87,16 @@ class BinaryConstantPool implements Constants {
                 cpool[i] = new Integer((in.readUnsignedShort() << 16) | in.readUnsignedShort());
                 break;
 
+              case CONSTANT_METHODHANDLE:
+                cpool[i] = readBytes(in, 3);
+                break;
+              case CONSTANT_METHODTYPE:
+                cpool[i] = readBytes(in, 2);
+                break;
+              case CONSTANT_INVOKEDYNAMIC:
+                cpool[i] = readBytes(in, 4);
+                break;
+
               case 0:
               default:
                 throw new ClassFormatError("invalid constant type: " + (int)types[i]);
@@ -94,6 +104,12 @@ class BinaryConstantPool implements Constants {
         }
     }
 
+    private byte[] readBytes(DataInputStream in, int cnt) throws IOException {
+        byte[] b = new byte[cnt];
+        in.readFully(b);
+        return b;
+    }
+
     /**
      * get a integer
      */
@@ -160,6 +176,9 @@ class BinaryConstantPool implements Constants {
             case CONSTANT_FLOAT:
             case CONSTANT_LONG:
             case CONSTANT_DOUBLE:
+            case CONSTANT_METHODHANDLE:
+            case CONSTANT_METHODTYPE:
+            case CONSTANT_INVOKEDYNAMIC:
                 return getValue(n);
 
             case CONSTANT_CLASS:
@@ -312,6 +331,11 @@ class BinaryConstantPool implements Constants {
                     out.writeShort(value & 0xFFFF);
                     break;
                 }
+                case CONSTANT_METHODHANDLE:
+                case CONSTANT_METHODTYPE:
+                case CONSTANT_INVOKEDYNAMIC:
+                    out.write((byte[])x, 0, ((byte[])x).length);
+                    break;
                 default:
                      throw new ClassFormatError("invalid constant type: "
                                                    + (int)types[i]);
diff --git a/src/share/classes/sun/tools/java/RuntimeConstants.java b/src/share/classes/sun/tools/java/RuntimeConstants.java
index 949573e80..f37916a65 100644
--- a/src/share/classes/sun/tools/java/RuntimeConstants.java
+++ b/src/share/classes/sun/tools/java/RuntimeConstants.java
@@ -87,6 +87,9 @@ public interface RuntimeConstants {
     int CONSTANT_METHOD              = 10;
     int CONSTANT_INTERFACEMETHOD     = 11;
     int CONSTANT_NAMEANDTYPE         = 12;
+    int CONSTANT_METHODHANDLE        = 15;
+    int CONSTANT_METHODTYPE          = 16;
+    int CONSTANT_INVOKEDYNAMIC       = 18;
 
     /* Access and modifier flags */
     int ACC_PUBLIC                   = 0x00000001;
diff --git a/test/sun/tools/java/CFCTest.java b/test/sun/tools/java/CFCTest.java
new file mode 100644
index 000000000..eb6921c6e
--- /dev/null
+++ b/test/sun/tools/java/CFCTest.java
@@ -0,0 +1,181 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8011805
+ * @summary Update sun.tools.java class file reading/writing support to include the new constant pool entries (including invokedynamic)
+ */
+
+import java.io.DataInputStream;
+import java.io.EOFException;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import sun.tools.java.ClassDeclaration;
+import sun.tools.java.Identifier;
+import sun.rmi.rmic.BatchEnvironment;
+
+public class CFCTest {
+
+    /* Constant table */
+    private static final int CONSTANT_UTF8 = 1;
+    private static final int CONSTANT_INTEGER = 3;
+    private static final int CONSTANT_FLOAT = 4;
+    private static final int CONSTANT_LONG = 5;
+    private static final int CONSTANT_DOUBLE = 6;
+    private static final int CONSTANT_CLASS = 7;
+    private static final int CONSTANT_STRING = 8;
+    private static final int CONSTANT_FIELD = 9;
+    private static final int CONSTANT_METHOD = 10;
+    private static final int CONSTANT_INTERFACEMETHOD = 11;
+    private static final int CONSTANT_NAMEANDTYPE = 12;
+    private static final int CONSTANT_METHODHANDLE = 15;
+    private static final int CONSTANT_METHODTYPE = 16;
+    private static final int CONSTANT_INVOKEDYNAMIC = 18;
+
+    String testClassName = this.getClass().getCanonicalName();
+    String testClassPath = System.getProperty("test.classes", ".");
+
+    interface I {
+        int get();
+    }
+
+    public static void main(String[] args) throws Exception {
+        new CFCTest().testNewConstants();
+    }
+
+    void testNewConstants() throws Exception {
+        // Presence of lambda causes new constant pool constant types to be used
+        I lam = () -> 88;
+        if (lam.get() == 88) {
+            System.out.println("Sanity passed: Lambda worked.");
+        } else {
+            throw new RuntimeException("Sanity failed: bad lambda execution");
+        }
+
+        // Verify that all the new constant pool constant types are present
+        String clsName = testClassPath + File.separator + testClassName + ".class";
+        ClassConstantChecker ccc = new ClassConstantChecker(clsName);
+        ccc.checkFound(CONSTANT_METHODHANDLE);
+        ccc.checkFound(CONSTANT_METHODTYPE);
+        ccc.checkFound(CONSTANT_INVOKEDYNAMIC);
+
+        // Heart of test: read the class file with the new constant types
+        exerciseClassDefinition();
+        System.out.println("ClassDefinition read without failure.\n");
+   }
+
+    /**
+     * Failure is seen when getClassDefinition causes class read
+     */
+    void exerciseClassDefinition() throws Exception {
+        BatchEnvironment env = new BatchEnvironment(System.out,
+                BatchEnvironment.createClassPath(testClassPath, null, null),
+                null);
+        try {
+            ClassDeclaration decl = env.getClassDeclaration(
+                    Identifier.lookup(testClassName));
+            decl.getClassDefinition(env);
+        } finally {
+            env.flushErrors();
+            env.shutdown();
+        }
+    }
+
+    private class ClassConstantChecker {
+
+        private DataInputStream in;
+        private boolean[] found;
+
+        ClassConstantChecker(String clsName) throws IOException {
+            in = new DataInputStream(new FileInputStream(clsName));
+            found = new boolean[CONSTANT_INVOKEDYNAMIC + 20];
+            try {
+                check();
+            } finally {
+                in.close();
+            }
+        }
+
+        void checkFound(int tag) throws Exception {
+            if (found[tag]) {
+                System.out.printf("Constant pool tag found: %d\n", tag);
+            } else {
+                throw new RuntimeException("Insufficient test, constant pool tag NOT found: " + tag);
+            }
+        }
+
+        private void skip(int n) throws IOException {
+            if (in.skipBytes(n) != n) {
+                throw new EOFException();
+            }
+        }
+
+        private void check() throws IOException {
+            skip(8); // magic, version
+            int count = in.readUnsignedShort();
+            for (int i = 1; i < count; i++) {
+                int j = i;
+                // JVM 4.4 cp_info.tag
+                int tag = in.readByte();
+                found[tag] = true;
+                switch (tag) {
+                    case CONSTANT_UTF8:
+                        in.readUTF();
+                        break;
+                    case CONSTANT_LONG:
+                    case CONSTANT_DOUBLE:
+                        skip(8);
+                        break;
+                    case CONSTANT_CLASS:
+                    case CONSTANT_STRING:
+                        skip(2);
+                        break;
+                    case CONSTANT_INTEGER:
+                    case CONSTANT_FLOAT:
+                    case CONSTANT_FIELD:
+                    case CONSTANT_METHOD:
+                    case CONSTANT_INTERFACEMETHOD:
+                    case CONSTANT_NAMEANDTYPE:
+                        skip(4);
+                        break;
+
+                    case CONSTANT_METHODHANDLE:
+                        skip(3);
+                        break;
+                    case CONSTANT_METHODTYPE:
+                        skip(2);
+                        break;
+                    case CONSTANT_INVOKEDYNAMIC:
+                        skip(4);
+                        break;
+
+                    case 0:
+                    default:
+                        throw new ClassFormatError("invalid constant type: " + tag);
+                }
+            }
+        }
+    }
+}
-- 
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