/* * Copyright (c) 2018, 2022, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2018, Google 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.
*/
static { // Do this once here. // Scan for Metaspace update notices as part of the GC log, e.g. in this form: // [gc,metaspace ] GC(0) Metaspace: 11895K(14208K)->11895K(14208K) NonClass: 10552K(12544K)->10552K(12544K) Class: 1343K(1664K)->1343K(1664K)
metaSpaceRegexp = Pattern.compile(".*Metaspace: ([0-9]+).*->([0-9]+).*");
}
privatestaticvoid verifyContainsMetaSpaceUpdate(OutputAnalyzer output) { // At least one metaspace line from GC should show GC being collected. boolean foundCollectedMetaSpace = output.asLines().stream()
.filter(s -> s.contains("[gc,metaspace"))
.anyMatch(TestMetaSpaceLog::check);
Asserts.assertTrue(foundCollectedMetaSpace);
}
privatestaticboolean check(String line) {
Matcher m = metaSpaceRegexp.matcher(line); if (m.matches()) { // Numbers for Metaspace occupation should grow. long before = Long.parseLong(m.group(1)); long after = Long.parseLong(m.group(2)); return before > after;
} returnfalse;
}
privatestaticvoid testMetaSpaceUpdate() throws Exception { // Propagate test.src for the jar file.
String testSrc= "-Dtest.src=" + System.getProperty("test.src", ".");
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.