--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/InvocationTests/invokeinterface/Checker.java Thu Oct 17 20:53:35 2019 +0100
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2009, 2019, 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.
+ *
+ */
+
+package invokeinterface;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+
+public class Checker extends shared.Checker {
+ private Class interfaceClass;
+
+ public Checker(Class interfaceClass, Class dynamicTargetClass) {
+ super(interfaceClass, dynamicTargetClass);
+
+ if (staticTargetClass.isInterface()) {
+ this.interfaceClass = staticTargetClass;
+ } else {
+ throw new RuntimeException("Static target class should be an interface.");
+ }
+ }
+
+ public String check (Class callerClass) {
+ // Check access rights to interface for caller
+ if (!checkAccess(interfaceClass, callerClass)) {
+ return "java.lang.IllegalAccessError";
+ }
+
+ // NSME is thrown when interface doesn't declare the method
+ if (getDeclaredMethod(interfaceClass) == null) {
+ return "java.lang.NoSuchMethodError";
+ }
+
+ // 9.1.5 Access to Interface Member Names
+ // "All interface members are implicitly public. They are
+ // accessible outside the package where the interface is
+ // declared if the interface is also declared public or
+ // protected, in accordance with the rules of 6.6."
+
+ // Search for method declaration in the hierarchy
+ Class klass = dynamicTargetClass;
+
+ while (klass != Object.class) {
+ Method method = getDeclaredMethod(klass);
+
+ if (method != null) {
+ int modifiers = method.getModifiers();
+
+ // Check whether obtained method is public and isn't abstract
+ if ( Modifier.isPublic(modifiers)) {
+ if (Modifier.isAbstract(modifiers)) {
+ return "java.lang.AbstractMethodError";
+ } else {
+ return String.format("%s.%s",
+ method.getDeclaringClass().getSimpleName(),
+ methodName);
+ }
+ } else {
+ // IAE is thrown when located method isn't PUBLIC
+ // or private. Private methods are skipped when
+ // looking for an interface method.
+ if (!Modifier.isPrivate(modifiers)) {
+ return "java.lang.IllegalAccessError";
+ }
+ }
+ }
+
+ klass = klass.getSuperclass();
+ }
+
+ // No method declaration is found
+ return "java.lang.AbstractMethodError";
+ }
+}