--- old/test/hotspot/jtreg/runtime/appcds/sharedStrings/SharedStringsHumongous.java 2019-07-24 08:28:07.833467658 -0400 +++ /dev/null 2019-07-22 09:37:15.068007775 -0400 @@ -1,96 +0,0 @@ -/* - * Copyright (c) 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 - * @summary Use a shared string allocated in a humongous G1 region. - * @comment -- the following implies that G1 is used (by command-line or by default) - * @requires vm.cds.archived.java.heap - * - * @library /test/hotspot/jtreg/runtime/appcds /test/lib - * @modules jdk.jartool/sun.tools.jar - * @build HelloString - * @build sun.hotspot.WhiteBox - * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission - * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. SharedStringsHumongous - */ -import java.io.File; -import java.io.FileOutputStream; -import java.io.OutputStreamWriter; -import java.io.PrintWriter; -import sun.hotspot.WhiteBox; -import jdk.test.lib.process.OutputAnalyzer; -import jdk.test.lib.process.ProcessTools; -import jdk.test.lib.Asserts; - -public class SharedStringsHumongous { - static String sharedArchiveConfigFile = System.getProperty("user.dir") + File.separator + "SharedStringsHumongous_gen.txt"; - - public static void main(String[] args) throws Exception { - WhiteBox wb = WhiteBox.getWhiteBox(); - - try (FileOutputStream fos = new FileOutputStream(sharedArchiveConfigFile)) { - PrintWriter out = new PrintWriter(new OutputStreamWriter(fos)); - out.println("VERSION: 1.0"); - out.println("@SECTION: String"); - out.println("31: shared_test_string_unique_14325"); - int region_size = wb.g1RegionSize(); - char body[] = new char[region_size + region_size / 2]; - for (int i = 0; i < body.length; i++) { - body[i] = 'x'; - } - Asserts.assertTrue(wb.g1IsHumongous(body)); - String prefix = "generated_string (followed by " + body.length + " 'x') "; - - System.out.println("G1 region size: " + region_size); - System.out.println("Using a humongous string: " + prefix); - - String s = prefix + new String(body); - out.println(s.length() + ": " + s); - out.close(); - } - - SharedStringsUtils.run(args, SharedStringsHumongous::test); - } - - public static void test(String[] args) throws Exception { - String vmOptionsPrefix[] = SharedStringsUtils.getChildVMOptionsPrefix(); - String appJar = JarBuilder.build("SharedStringsHumongous", "HelloString"); - - OutputAnalyzer dumpOutput = TestCommon.dump(appJar, TestCommon.list("HelloString"), - TestCommon.concat(vmOptionsPrefix, - "-XX:SharedArchiveConfigFile=" + sharedArchiveConfigFile, - "-Xlog:gc+region+cds", - "-Xlog:gc+region=trace")); - TestCommon.checkDump(dumpOutput, "extra interned string ignored; size too large"); - // Extra strings that are humongous are not kelp alive, so they should be GC'ed - // before dumping the string table. That means the heap should contain no - // humongous regions. - dumpOutput.shouldNotMatch("gc,region,cds. HeapRegion 0x[0-9a-f]* HUM"); - - OutputAnalyzer execOutput = TestCommon.exec(appJar, - TestCommon.concat(vmOptionsPrefix, "HelloString")); - TestCommon.checkExec(execOutput); - } -} --- /dev/null 2019-07-22 09:37:15.068007775 -0400 +++ new/test/hotspot/jtreg/runtime/cds/sharedStrings/SharedStringsHumongous.java 2019-07-24 08:28:07.561467667 -0400 @@ -0,0 +1,96 @@ +/* + * Copyright (c) 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 + * @summary Use a shared string allocated in a humongous G1 region. + * @comment -- the following implies that G1 is used (by command-line or by default) + * @requires vm.cds.archived.java.heap + * + * @library /test/hotspot/jtreg/runtime/cds /test/lib + * @modules jdk.jartool/sun.tools.jar + * @build HelloString + * @build sun.hotspot.WhiteBox + * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission + * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. SharedStringsHumongous + */ +import java.io.File; +import java.io.FileOutputStream; +import java.io.OutputStreamWriter; +import java.io.PrintWriter; +import sun.hotspot.WhiteBox; +import jdk.test.lib.process.OutputAnalyzer; +import jdk.test.lib.process.ProcessTools; +import jdk.test.lib.Asserts; + +public class SharedStringsHumongous { + static String sharedArchiveConfigFile = System.getProperty("user.dir") + File.separator + "SharedStringsHumongous_gen.txt"; + + public static void main(String[] args) throws Exception { + WhiteBox wb = WhiteBox.getWhiteBox(); + + try (FileOutputStream fos = new FileOutputStream(sharedArchiveConfigFile)) { + PrintWriter out = new PrintWriter(new OutputStreamWriter(fos)); + out.println("VERSION: 1.0"); + out.println("@SECTION: String"); + out.println("31: shared_test_string_unique_14325"); + int region_size = wb.g1RegionSize(); + char body[] = new char[region_size + region_size / 2]; + for (int i = 0; i < body.length; i++) { + body[i] = 'x'; + } + Asserts.assertTrue(wb.g1IsHumongous(body)); + String prefix = "generated_string (followed by " + body.length + " 'x') "; + + System.out.println("G1 region size: " + region_size); + System.out.println("Using a humongous string: " + prefix); + + String s = prefix + new String(body); + out.println(s.length() + ": " + s); + out.close(); + } + + SharedStringsUtils.run(args, SharedStringsHumongous::test); + } + + public static void test(String[] args) throws Exception { + String vmOptionsPrefix[] = SharedStringsUtils.getChildVMOptionsPrefix(); + String appJar = JarBuilder.build("SharedStringsHumongous", "HelloString"); + + OutputAnalyzer dumpOutput = TestCommon.dump(appJar, TestCommon.list("HelloString"), + TestCommon.concat(vmOptionsPrefix, + "-XX:SharedArchiveConfigFile=" + sharedArchiveConfigFile, + "-Xlog:gc+region+cds", + "-Xlog:gc+region=trace")); + TestCommon.checkDump(dumpOutput, "extra interned string ignored; size too large"); + // Extra strings that are humongous are not kelp alive, so they should be GC'ed + // before dumping the string table. That means the heap should contain no + // humongous regions. + dumpOutput.shouldNotMatch("gc,region,cds. HeapRegion 0x[0-9a-f]* HUM"); + + OutputAnalyzer execOutput = TestCommon.exec(appJar, + TestCommon.concat(vmOptionsPrefix, "HelloString")); + TestCommon.checkExec(execOutput); + } +}