--- a/hotspot/src/share/vm/code/dependencies.cpp Mon Mar 23 10:15:53 2015 +0100
+++ b/hotspot/src/share/vm/code/dependencies.cpp Mon Mar 23 11:20:38 2015 +0000
@@ -845,7 +845,13 @@
assert((uint)n <= (uint)_num_participants, "oob");
Method* fm = _found_methods[n];
assert(n == _num_participants || fm != NULL, "proper usage");
- assert(fm == NULL || fm->method_holder() == _participants[n], "sanity");
+ if (fm != NULL && fm->method_holder() != _participants[n]) {
+ // Default methods from interfaces can be added to classes. In
+ // that case the holder of the method is not the class but the
+ // interface where it's defined.
+ assert(fm->is_default_method(), "sanity");
+ return NULL;
+ }
return fm;
}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/inlining/DefaultMethodsDependencies.java Mon Mar 23 11:20:38 2015 +0000
@@ -0,0 +1,63 @@
+/*
+ * 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 8069263
+ * @summary Deoptimization between array allocation and arraycopy may result in non initialized array
+ * @run main/othervm -XX:-BackgroundCompilation -XX:CompileOnly=DefaultMethodsDependencies::test -XX:CompileOnly=DefaultMethodsDependencies$I2::m1 DefaultMethodsDependencies
+ *
+ */
+
+public class DefaultMethodsDependencies {
+
+ interface I1 {
+ void m1();
+ // triggers processing of default methods in C1
+ default void m2() {
+ }
+ }
+
+ interface I2 extends I1 {
+ // added to C2 as default method
+ default void m1() {
+ }
+ }
+
+ static abstract class C1 implements I1 {
+ }
+
+ static class C2 extends C1 implements I2 {
+ }
+
+ static void test(C1 obj) {
+ obj.m1();
+ }
+
+ static public void main(String[] args) {
+ C2 obj = new C2();
+ for (int i = 0; i < 20000; i++) {
+ test(obj);
+ }
+ }
+}