8003280: Add lambda tests

Turn on lambda expression, method reference and default method support

Reviewed-by: jjg

langtools/test/tools/javac/lambda/methodReference/MethodRef4.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2011, 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 8003280
+ * @summary Add lambda tests
+ *   Test constructor reference
+ * @compile MethodRef4.java
+ * @run main MethodRef4
+ */
+
+public class MethodRef4 {
+
+    static interface A {Fee<String> m();}
+
+    static interface B {Fee<String> m(String s);}
+
+    static interface C {Object m();}
+
+    static class Fee<T> {
+
+        private T t;
+
+        public Fee() {
+            System.out.println("Fee<T> instantiated");
+        }
+
+        public Fee(T t) {
+            this.t = t;
+            System.out.println("Fee<T> instantiated: " + t);
+        }
+
+        public void make() {
+            System.out.println(this + ": make()");
+        }
+    }
+
+    private static void assertTrue(boolean cond) {
+        if (!cond)
+            throw new AssertionError();
+    }
+
+    public static void main(String[] args) {
+
+        A a = Fee<String>::new; //constructor reference to Fee<T>()
+        a.m().make();
+
+        B b = Fee<String>::new; //constructor reference to Fee<T>(String)
+        b.m("hi").make();
+
+        C c = MethodRef4::new; //constructor reference to MethodRef4()
+        assertTrue( c.m() instanceof MethodRef4 );
+        c = MethodRef4::new; //constructor reference to MethodRef4()
+        assertTrue( c.m() instanceof MethodRef4 );
+        c = Fee<String>::new; //constructor reference to Fee<T>()
+        assertTrue( c.m() instanceof Fee );
+    }
+}