--- /dev/null 2018-04-28 00:26:07.190086997 -0400 +++ new/test/hotspot/jtreg/runtime/Nestmates/privateConstructors/TestJNI.java 2018-05-30 08:10:35.807956143 -0400 @@ -0,0 +1,142 @@ +/* + * Copyright (c) 2018, 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 8046171 + * @summary Test JNI access to private constructors between nestmates and nest-host + * using different flavours of named nested types using core reflection + * @compile ../NestmatesJNI.java + * @run main/othervm/native TestJNI + * @run main/othervm/native -Xcheck:jni TestJNI + */ +public class TestJNI { + + // Unlike reflection, the calling context is not relevant to JNI + // calls, but we keep the same structure as the reflection tests. + + + // All constructors are private to ensure nestmate access checks apply + + // All doConstruct methods are public so they don't involve nestmate access + + private TestJNI() {} + + // The various nestmates + + // Note: No constructor on interfaces so no StaticIface variants + + static interface StaticIface { + + // Methods that will access private constructors of nestmates. + + default void doConstruct(TestJNI o) throws Throwable { + Object obj = newInstance(o.getClass()); + } + default void doConstruct(TestJNI outerThis, InnerNested o) throws Throwable { + Object obj = newInstance(o.getClass(), outerThis); + } + default void doConstruct(StaticNested o) throws Throwable { + Object obj = newInstance(o.getClass()); + } + } + + static class StaticNested { + + private StaticNested() {} + + // Methods that will access private constructors of nestmates. + // The arg is a dummy for overloading purposes + + public void doConstruct(TestJNI o) throws Throwable { + Object obj = newInstance(o.getClass()); + } + public void doConstruct(TestJNI outerThis, InnerNested o) throws Throwable { + Object obj = newInstance(o.getClass(), outerThis); + } + public void doConstruct(StaticNested o) throws Throwable { + Object obj = newInstance(o.getClass()); + } + } + + class InnerNested { + + private InnerNested() {} + + // Methods that will access private constructors of nestmates. + // The arg is a dummy for overloading purposes + + public void doConstruct(TestJNI o) throws Throwable { + Object obj = newInstance(o.getClass()); + } + public void doConstruct(TestJNI outerThis, InnerNested o) throws Throwable { + Object obj = newInstance(o.getClass(), outerThis); + } + public void doConstruct(StaticNested o) throws Throwable { + Object obj = newInstance(o.getClass()); + } + } + + public static void main(String[] args) throws Throwable { + // These initial constructions test nest-host access to members + + TestJNI o = newInstance(TestJNI.class); + StaticNested s = (StaticNested) newInstance(StaticNested.class); + InnerNested i = (InnerNested) newInstance(InnerNested.class, o); + + // We need a StaticIface instance to call doConstruct on + StaticIface intf = new StaticIface() {}; + + s.doConstruct(o); + s.doConstruct(o, i); + s.doConstruct(s); + + i.doConstruct(o); + i.doConstruct(o, i); + i.doConstruct(s); + + intf.doConstruct(o); + intf.doConstruct(o, i); + intf.doConstruct(s); + } + + static T newInstance(Class klass) { + return newInstance(klass, null); + } + + static T newInstance(Class klass, Object outerThis) { + String sig = (outerThis == null) ? + "()V" : + "(L" + outerThis.getClass().getName() + ";)V"; + String definingClass = klass.getName(); + String desc = " Invocation of constructor " + definingClass + sig; + try { + T ret = (T) NestmatesJNI.newInstance(definingClass, sig, outerThis); + System.out.println(desc + " - passed"); + return ret; + } + catch (Throwable t) { + throw new Error(desc + ": Unexpected exception: " + t, t); + } + } +}