8184732: Deadlock detection improvements for 'special' locks
Summary: Assert that special ranked locks cannot safepoint and allow_vm_block and remove locks from the exceptional lock list in no_safepoint_verifier.
Reviewed-by: dholmes, eosterlund
/*
* Copyright (c) 2013, 2016, 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 javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.attribute.AttributeSet;
import javax.print.attribute.HashAttributeSet;
import javax.print.attribute.standard.PrinterName;
/*
* @test
* @bug 8013810 8025439
* @summary Test that print service returned without filter are of the same class
* as with name filter
*/
public class GetPrintServices {
public static void main(String[] args) throws Exception {
for (PrintService service : PrintServiceLookup.lookupPrintServices(null, null)) {
String serviceName = service.getName();
PrinterName name = service.getAttribute(PrinterName.class);
String printerName = name.getValue();
PrintService serviceByName = lookupByName(printerName);
System.out.println("service " + service);
System.out.println("serviceByName " + serviceByName);
if (!service.equals(serviceByName)) {
throw new RuntimeException("NOK " + serviceName
+ " expected: " + service.getClass().getName()
+ " got: " + serviceByName.getClass().getName());
}
}
System.out.println("Test PASSED");
}
private static PrintService lookupByName(String name) {
AttributeSet attributes = new HashAttributeSet();
attributes.add(new PrinterName(name, null));
for (PrintService service :
PrintServiceLookup.lookupPrintServices(null, attributes)) {
return service;
}
return null;
}
}