7053059: VerifyError with double Assignment using a Generic Member of a Superclass

Reviewed-by: mcimadamore

src/share/classes/com/sun/tools/javac/comp/TransTypes.java

@@ -172,10 +172,13 @@ public class TransTypes extends TreeTranslator {
     JCExpression retype(JCExpression tree, Type erasedType, Type target) {
 //      System.err.println("retype " + tree + " to " + erasedType);//DEBUG
         if (!erasedType.isPrimitive()) {
-            if (target != null && target.isPrimitive())
+            if (target != null && target.isPrimitive()) {
                 target = erasure(tree.type);
+            }
             tree.type = erasedType;
-            if (target != null) return coerce(tree, target);
+            if (target != null) {
+                return coerce(tree, target);
+            }
         }
         return tree;
     }
@@ -686,8 +689,8 @@ public class TransTypes extends TreeTranslator {
     public void visitAssign(JCAssign tree) {
         tree.lhs = translate(tree.lhs, null);
         tree.rhs = translate(tree.rhs, erasure(tree.lhs.type));
-        tree.type = erasure(tree.type);
-        result = tree;
+        tree.type = erasure(tree.lhs.type);
+        result = retype(tree, tree.type, pt);
     }
 
     public void visitAssignop(JCAssignOp tree) {

test/tools/javac/T7053059/VerifyErrorWithDoubleAssignmentTest.java

+/*
+ * 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 7053059
+ * @summary VerifyError with double Assignment using a Generic Member of a Superclass
+ * @run main VerifyErrorWithDoubleAssignmentTest
+ */
+
+public class VerifyErrorWithDoubleAssignmentTest {
+
+    static class A<D> {
+        D d;
+
+        D getD() {
+            return null;
+        }
+    }
+
+    static class B extends A<Integer> {
+        Integer y;
+        B() {
+            y = d = getD();
+        }
+    }
+
+    public static void main(String[] args) {
+        new B();
+    }
+}