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/*
* Copyright (c) 2015, 2022, 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.
*/
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;
import java.util.List;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import static jdk.test.lib.Asserts.*;
/*
* @test
* @library /test/lib
* @build jdk.test.lib.Asserts
* @bug 8042901 8283092
* @summary Check encapsulation of PlatformMBeanProvider Constructor
* @modules java.management/sun.management.spi
* @run main PlatformMBeanProviderConstructorCheck
*/
public class PlatformMBeanProviderConstructorCheck {
/**
* jtreg invokes this test with module arguments that permit compilation
* of the MyProvider class, which extends PlatformMBeanProvider.
* First check we can invoke that class, then re-invoke ourself without
* those module arguments, and expect a failure calling MyProvider.
*/
public static void main(String[] args) throws Exception {
System.out.println("---PlatformMBeanProviderConstructorCheck:");
boolean expectedFail = false;
// Recognise argument to signify we were re-invoked, and MyProvider should fail:
if (args.length == 1) {
if (args[0].equals("--nomoduleargs")) {
expectedFail = true;
verifyNoModuleArguments();
} else {
throw new RuntimeException("unknown argument: '" + args[0] + "'");
}
}
System.out.println("---PlatformMBeanProviderConstructorCheck: invoke MyProvider with expectedFail = " + expectedFail);
Throwable e = null;
try {
new MyProvider();
} catch (IllegalAccessError iae) {
System.out.println("---PlatformMBeanProviderConstructorCheck got exception: " + iae);
e = iae;
}
if (!expectedFail) {
// This was the first invocation, should have worked OK:
assertNull(e);
System.out.println("---PlatformMBeanProviderConstructorCheck PASSED (1) (expectedFail = " + expectedFail + ")");
// Re-invoke this test to check failure:
System.out.println("---PlatformMBeanProviderConstructorCheck: re-invoke without --add-modules or --add-exports");
OutputAnalyzer output = ProcessTools.executeTestJava("PlatformMBeanProviderConstructorCheck", "--nomoduleargs");
output.reportDiagnosticSummary();
output.shouldContain("java.lang.IllegalAccessError: superclass access check failed:");
output.shouldContain(" module java.management does not export sun.management.spi to ");
output.shouldNotContain("MyProvider constructor.");
} else {
// This was the re-invocation without module access, should fail:
assertNotNull(e);
System.out.println("---PlatformMBeanProviderConstructorCheck PASSED (2) (expectedFail = " + expectedFail + ")");
}
}
private static void verifyNoModuleArguments() {
RuntimeMXBean mxbean = ManagementFactory.getRuntimeMXBean();
for (String s : mxbean.getInputArguments()) {
if (s.startsWith("--add-modules") || s.startsWith("--add-exports")) {
System.out.println("arg: " + s);
throw new RuntimeException("argument list contains: " + s);
}
}
}
private static class MyProvider extends sun.management.spi.PlatformMBeanProvider {
@Override
public List<PlatformComponent<?>> getPlatformComponentList() {
System.out.println("MyProvider constructor.");
return null;
}
}
}
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