8023558: Javac creates invalid bootstrap methods for complex lambda/methodref case

Reviewed-by: jjg
Contributed-by: maurizio.cimadamore@oracle.com, vicente.romero@oracle.com

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

@@ -833,7 +833,7 @@ public class TransTypes extends TreeTranslator {
     }
 
     public void visitReference(JCMemberReference tree) {
-        tree.expr = translate(tree.expr, null);
+        tree.expr = translate(tree.expr, erasure(tree.expr.type));
         tree.type = erasure(tree.type);
         result = tree;
     }

test/tools/javac/lambda/8023558/T8023558a.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 8023558
+ * @summary Javac creates invalid bootstrap methods for complex lambda/methodref case
+ */
+public class T8023558a {
+    interface SAM<T> {
+        T get();
+    }
+
+    public static void main(String[] args) {
+        SAM<SAM> sam = new SAM<SAM>() { public SAM get() { return null; } };
+        SAM temp = sam.get()::get;
+    }
+}

test/tools/javac/lambda/8023558/T8023558b.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 8023558
+ * @summary Javac creates invalid bootstrap methods for complex lambda/methodref case
+ */
+public class T8023558b {
+
+    interface Supplier<X> {
+        X get();
+    }
+
+    static class A {
+        public A(Supplier<B> supplier) { }
+    }
+
+    static class B { }
+
+    static class C {
+        public B getB() {
+            return new B();
+        }
+    }
+
+    public static void main(String[] args) {
+        new T8023558b().test(T8023558b::getC);
+    }
+
+    private static C getC() {
+        return new C();
+    }
+
+    public void test(Supplier<C> supplier) {
+        new A(supplier.get()::getB);
+    }
+}

test/tools/javac/lambda/8023558/T8023558c.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 8023558
+ * @summary Javac creates invalid bootstrap methods for complex lambda/methodref case
+ */
+
+interface SAM<T> {
+    T get();
+}
+
+public class T8023558c {
+    public static void main(String[] args) {
+        SAM<SAM> sam = () -> Object::new;
+        SAM temp = sam.get()::get;
+    }
+}