changeset 2803:a6f70f3d55b5

8071310: Tests missing for checkin for JDK-8046977 Reviewed-by: jlahoda Contributed-by: srikanth.adayapalam@oracle.com
author jfranck
date Thu, 22 Jan 2015 09:50:03 +0100
parents ba94059b469a
children de31f7bc10c7
files test/tools/javac/lambda/MethodReferenceGenericTarget.java
diffstat 1 files changed, 107 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javac/lambda/MethodReferenceGenericTarget.java	Thu Jan 22 09:50:03 2015 +0100
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2015, 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 8046977 8065303
+ * @summary ClassCastException: typing information needed for method reference bridging not preserved
+ * @author Srikanth
+ * @run main MethodReferenceGenericTarget
+ */
+
+public class MethodReferenceGenericTarget {
+    static String result = "";
+
+    interface ISi { int m(Short a); }
+
+    public static void main(String[] args) {
+      (new MethodReferenceGenericTarget()).testUnboxObjectToNumberWiden();
+      if (!result.equals("7775"))
+          throw new AssertionError("Incorrect result");
+        MethodReferenceTestPrivateTypeConversion.main(null);
+        new InferenceHookTest().test();
+    }
+
+    void foo(ISi q) {
+        result += q.m((short)75);
+    }
+
+    public void testUnboxObjectToNumberWiden() {
+        ISi q = (new E<Short>())::xI;
+        result += q.m((short)77);
+        // Verify poly invocation context to confirm we handle
+        // deferred/speculative attribution paths adequately.
+        foo((new E<Short>())::xI);
+    }
+
+    class E<T> {
+        private T xI(T t) { return t; }
+    }
+}
+
+// snippet from https://bugs.openjdk.java.net/browse/JDK-8065303
+class MethodReferenceTestPrivateTypeConversion {
+
+    class MethodReferenceTestTypeConversion_E<T> {
+        private T xI(T t) { return t; }
+    }
+
+    interface ISi { int m(Short a); }
+
+    interface ICc { char m(Character a); }
+
+    public void testUnboxObjectToNumberWiden() {
+        ISi q = (new MethodReferenceTestTypeConversion_E<Short>())::xI;
+        if ((q.m((short)77) != (short)77))
+            throw new AssertionError("Incorrect result");
+    }
+
+    public void testUnboxObjectToChar() {
+        ICc q = (new MethodReferenceTestTypeConversion_E<Character>())::xI;
+        if (q.m('@') != '@')
+            throw new AssertionError("Incorrect result");
+    }
+
+    public static void main(String[] args) {
+        new MethodReferenceTestPrivateTypeConversion().testUnboxObjectToNumberWiden();
+        new MethodReferenceTestPrivateTypeConversion().testUnboxObjectToChar();
+    }
+}
+
+class InferenceHookTestBase {
+    <X> X m(Integer i) { return null; }
+}
+
+class InferenceHookTest extends InferenceHookTestBase {
+    interface SAM1<R> {
+        R m(Integer i);
+    }
+
+    <Z> Z g(SAM1<Z> o) { return null; }
+
+    void test() {
+        String s = g(super::m);
+        if (s != null)
+            throw new AssertionError("Incorrect result");
+    }
+}