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/*
* Copyright (c) 2013, 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 8012557
* @summary Check that 8012557 is fixed, that interface lambda
* methods are private
* @author Robert Field
* @compile SAM.java
* @compile A.java
* @compile B.java
* @compile C.java
* @run main PrivateLambdas
*
* Unless the lambda methods are private, this will fail with:
* AbstractMethodError:
* Conflicting default methods: A.lambda$0 B.lambda$0 C.lambda$0
*/
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
interface X extends A, B, C {
default String u() { return " "; }
default String name() {
return A.super.name() + B.super.name() + C.super.name();
}
}
public class PrivateLambdas implements X {
public static void main(String[] args) throws Exception {
// Check that all the lambda methods are private instance synthetic
for (Class<?> k : new Class<?>[] { A.class, B.class, C.class }) {
Method[] methods = k.getDeclaredMethods();
int lambdaCount = 0;
for(Method m : methods) {
if (m.getName().startsWith("lambda$")) {
++lambdaCount;
int mod = m.getModifiers();
if ((mod & Modifier.PRIVATE) == 0) {
throw new Exception("Expected " + m + " to be private");
}
if (!m.isSynthetic()) {
throw new Exception("Expected " + m + " to be synthetic");
}
if ((mod & Modifier.STATIC) != 0) {
throw new Exception("Expected " + m + " to be instance method");
}
}
}
if (lambdaCount == 0) {
throw new Exception("Expected at least one lambda method");
}
}
/*
* Unless the lambda methods are private, this will fail with:
* AbstractMethodError:
* Conflicting default methods: A.lambda$0 B.lambda$0 C.lambda$0
*/
X x = new PrivateLambdas();
if (!x.name().equals(" A B C")) {
throw new Exception("Expected ' A B C' got: " + x.name());
}
}
}
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