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8354407: Test com/sun/management/OperatingSystemMXBean/GetProcessCpuLoad.java still fails on Windows

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Reviewed-by: cjplummer, lmesnik
This commit is contained in:
Kevin Walls 2025-05-01 16:05:59 +00:00
parent 2ad639f1b3
commit 09cae5fd8f
2 changed files with 11 additions and 30 deletions
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17
test/jdk/com/sun/management/OperatingSystemMXBean/GetProcessCpuLoad.java
View File

@ -34,18 +34,21 @@ import java.lang.management.*;
import jdk.test.lib.Platform; import jdk.test.lib.Platform;
public class GetProcessCpuLoad { public class GetProcessCpuLoad {
private static final int TEST_COUNT = 10;
public static void main(String[] argv) throws Exception { public static void main(String[] argv) throws Exception {
OperatingSystemMXBean mbean = (com.sun.management.OperatingSystemMXBean) OperatingSystemMXBean mbean = (com.sun.management.OperatingSystemMXBean)
ManagementFactory.getOperatingSystemMXBean(); ManagementFactory.getOperatingSystemMXBean();
Exception ex = null; Exception ex = null;
double load; int good = 0;
for(int i = 0; i < 10; i++) { for (int i = 0; i < TEST_COUNT; i++) {
load = mbean.getProcessCpuLoad(); double load = mbean.getProcessCpuLoad();
if (load == -1.0 && Platform.isWindows()) { if (load == -1.0 && Platform.isWindows()) {
// Some Windows 2019 systems can return -1 for the first few reads. // Some Windows systems can return -1 occasionally, at any time.
// Remember a -1 in case it never gets better. // Will fail if we never see good values.
ex = new RuntimeException("getProcessCpuLoad() returns " + load ex = new RuntimeException("getProcessCpuLoad() returns " + load
+ " which is not in the [0.0,1.0] interval"); + " which is not in the [0.0,1.0] interval");
} else if (load < 0.0 || load > 1.0) { } else if (load < 0.0 || load > 1.0) {
@ -54,6 +57,7 @@ public class GetProcessCpuLoad {
} else { } else {
// A good reading: forget any previous -1. // A good reading: forget any previous -1.
ex = null; ex = null;
good++;
} }
try { try {
Thread.sleep(200); Thread.sleep(200);
@ -62,7 +66,8 @@ public class GetProcessCpuLoad {
} }
} }
if (ex != null) { if (good == 0) {
// Delayed failure for Windows.
throw ex; throw ex;
} }
} }

24
test/jdk/com/sun/management/OperatingSystemMXBean/TEST.properties
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@ -1,24 +0,0 @@
#
# Copyright (c) 2025, 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.
#
exclusiveAccess.dirs=.