diff test/runtime/lambda-features/TestInterfaceInit.java @ 20576:90257dfad6e3

8043275: 8u40 backport: Fix interface initialization for default methods. Reviewed-by: dcubed, coleenp
author acorn
date Fri, 24 Oct 2014 12:29:08 -0700
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/runtime/lambda-features/TestInterfaceInit.java	Fri Oct 24 12:29:08 2014 -0700
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+/*
+ * Copyright (c) 2014, 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 8034275
+ * @summary [JDK 8u40] Test interface initialization: only for interfaces declaring default methods
+ * @run main TestInterfaceInit
+ */
+import java.util.List;
+import java.util.Arrays;
+import java.util.ArrayList;
+
+public class TestInterfaceInit {
+
+   static List<Class<?>> cInitOrder = new ArrayList<>();
+
+   // Declares a default method and initializes
+   interface I {
+       boolean v = TestInterfaceInit.out(I.class);
+        default void x() {}
+   }
+
+   // Declares a default method and initializes
+   interface J extends I {
+       boolean v = TestInterfaceInit.out(J.class);
+       default void x() {}
+   }
+   // No default method, does not initialize
+   interface JN extends J {
+       boolean v = TestInterfaceInit.out(JN.class);
+   }
+
+   // Declares a default method and initializes
+   interface K extends I {
+       boolean v = TestInterfaceInit.out(K.class);
+        default void x() {}
+   }
+
+   // No default method, does not initialize
+   interface KN extends K {
+       boolean v = TestInterfaceInit.out(KN.class);
+   }
+
+   interface L extends JN, KN {
+       boolean v = TestInterfaceInit.out(L.class);
+        default void x() {}
+   }
+
+   public static void main(String[] args) {
+       // Trigger initialization
+       boolean v = L.v;
+
+       List<Class<?>> expectedCInitOrder = Arrays.asList(I.class,J.class,K.class,L.class);
+       if (!cInitOrder.equals(expectedCInitOrder)) {
+         throw new RuntimeException(String.format("Class initialization array %s not equal to expected array %s", cInitOrder, expectedCInitOrder));
+       }
+   }
+
+   static boolean out(Class c) {
+       System.out.println("#: initializing " + c.getName());
+       cInitOrder.add(c);
+       return true;
+   }
+
+}