hotspot/test/runtime/lambda-features/CyclicInterfaceInit.java
changeset 41293 871b2f487dc0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/lambda-features/CyclicInterfaceInit.java	Wed Sep 21 09:56:18 2016 -0400
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2016, 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 8163969
+ * @summary Interface initialization was crashing on this because the wrong class was getting
+ * initialization error.
+ * @run main CyclicInterfaceInit
+ */
+/**
+ * This snippet crashes with
+ * - Java(TM) SE Runtime Environment (8.0_101-b13) (build 1.8.0_101-b13)
+ */
+public class CyclicInterfaceInit {
+
+    interface Base {
+        static final Object CONST = new Target(){}.someMethod();
+
+        default void important() {
+            // Super interfaces with default methods get initialized (JLS 12.4.1)
+        }
+    }
+
+   static boolean out(String c) {
+       System.out.println("initializing " + c);
+       return true;
+    }
+
+    interface Target extends Base {
+        boolean v = CyclicInterfaceInit.out("Target");
+        default Object someMethod() {
+            throw new RuntimeException();
+        }
+        // Target can be fully initialized before initializating Base because Target doesn't
+        // initiate the initialization of Base.
+    }
+
+    static class InnerBad implements Target {}
+
+    public static void main(String[] args) {
+        try {
+          new Target() {};  // Creates inner class that causes initialization of super interfaces
+        } catch (ExceptionInInitializerError e) {
+          System.out.println("ExceptionInInitializerError thrown as expected");
+        }
+        // Try again, InnerBad instantiation should throw NoClassdefFoundError
+        // because Base is marked erroneous due to previous exception during initialization
+        try {
+          InnerBad ig = new InnerBad();
+          throw new RuntimeException("FAILED- initialization of InnerBad should throw NCDFE");
+        } catch (NoClassDefFoundError e) {
+          System.out.println("NoClassDefFoundError thrown as expected");
+        }
+        // Target is already initialized.
+        System.out.println("Target.v is " + Target.v);
+        // shouldn't throw any exceptions.
+    }
+}