test/hotspot/jtreg/vmTestbase/nsk/monitoring/stress/lowmem/lowmem013/TestDescription.java
changeset 49958 cc29d7717e3a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/stress/lowmem/lowmem013/TestDescription.java	Wed May 02 16:43:56 2018 -0700
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2017, 2018, 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
+ * @key stress
+ *
+ * @summary converted from VM Testbase nsk/monitoring/stress/lowmem/lowmem013.
+ * VM Testbase keywords: [stress, monitoring, nonconcurrent]
+ * VM Testbase readme:
+ * DESCRIPTION
+ *     The test checks that enabling of low memory detection does not lead to
+ *     unexpected behaviour: crashes of the VM and undocumented exceptions.
+ *     The test enables low memory detection: it adds NotificationListener
+ *     to the MemoryMBean for notification mechanism of monitoring, or starts
+ *     a special thread for polling mechanism. After that, it starts eating memory.
+ *     Objects are allocated, if "heap" memory is tested; classes are loaded,
+ *     if "nonheap" memory is tested; objects are allocated and classes are
+ *     loaded, if "mixed" memory is tested.
+ *     Notifications are received by the listener in notification mechanism and
+ *     crossing of thresholds are detected in polling mechanism. The thresholds
+ *     are updated as soon as notification is received, or crossing of a threshold
+ *     is detected.
+ *     The test also checks stderr to be empty. Otherwise, it fails. The test
+ *     exits as soon as OutOfMemoryError is caught (if heap memory is tested) or
+ *     all classes are loaded (if nonheap or mixed memory is tested).
+ *     All options of the test are specified in *.cfg file. this particular test
+ *         - performs directly access to the MBeans' methods;
+ *         - fills nonheap memory;
+ *         - implements polling mechanism of monitoring;
+ *         - tests usage thresholds.
+ * COMMENTS
+ *     Fixed the bug
+ *     4969687 TEST_BUG: The spec is updated accoring to 4956978, 4957000, 4959889
+ *
+ * @library /vmTestbase
+ *          /test/lib
+ * @run driver jdk.test.lib.FileInstaller . .
+ * @run main/othervm
+ *      -XX:-UseGCOverheadLimit
+ *      nsk.monitoring.stress.lowmem.lowmem001
+ *      -testMode=directly
+ *      -memory=nonheap
+ *      -monitoring=polling
+ *      -threshold=usage
+ */
+