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/*
* Copyright (c) 2022, 2023, 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 8295803 8299689
* @summary Tests System.console() returns correct Console (or null) from the expected
* module.
* @modules java.base/java.io:+open
* @run main/othervm ModuleSelectionTest java.base
* @run main/othervm -Djdk.console=jdk.internal.le ModuleSelectionTest jdk.internal.le
* @run main/othervm -Djdk.console=java.base ModuleSelectionTest java.base
* @run main/othervm --limit-modules java.base ModuleSelectionTest java.base
*/
import java.io.Console;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
public class ModuleSelectionTest {
public static void main(String... args) throws Throwable {
var con = System.console();
var pc = Class.forName("java.io.ProxyingConsole");
var jdkc = Class.forName("jdk.internal.io.JdkConsole");
var istty = (boolean)MethodHandles.privateLookupIn(Console.class, MethodHandles.lookup())
.findStatic(Console.class, "istty", MethodType.methodType(boolean.class))
.invoke();
var impl = con != null ? MethodHandles.privateLookupIn(pc, MethodHandles.lookup())
.findGetter(pc, "delegate", jdkc)
.invoke(con) : null;
var expected = switch (args[0]) {
case "java.base" -> istty ? "java.base" : "null";
default -> args[0];
};
var actual = con == null ? "null" : impl.getClass().getModule().getName();
if (!actual.equals(expected)) {
throw new RuntimeException("""
Console implementation is not the expected one.
Expected: %s
Actual: %s
""".formatted(expected, actual));
} else {
System.out.printf("%s is the expected implementation. (tty: %s)\n", impl, istty);
}
}
}
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