1 /*
 2  * Copyright (c) 2018, 2022, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  *
23  */
24 
25 /*
26  * @test
27  * @summary Use a shared string allocated in a humongous G1 region.
28  * @comment -- the following implies that G1 is used (by command-line or by default)
29  * @requires vm.cds.write.archived.java.heap

30  *
31  * @library /test/hotspot/jtreg/runtime/cds/appcds /test/lib
32  * @build HelloString
33  * @build jdk.test.whitebox.WhiteBox
34  * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
35  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. SharedStringsHumongous
36  */
37 import java.io.File;
38 import java.io.FileOutputStream;
39 import java.io.OutputStreamWriter;
40 import java.io.PrintWriter;
41 import jdk.test.whitebox.WhiteBox;
42 import jdk.test.lib.cds.CDSTestUtils;
43 import jdk.test.lib.process.OutputAnalyzer;
44 import jdk.test.lib.process.ProcessTools;
45 import jdk.test.lib.Asserts;
46 
47 public class SharedStringsHumongous {
48     static String sharedArchiveConfigFile = CDSTestUtils.getOutputDir() + File.separator + "SharedStringsHumongous_gen.txt";
49 

 1 /*
 2  * Copyright (c) 2018, 2024, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  *
23  */
24 
25 /*
26  * @test
27  * @summary Use a shared string allocated in a humongous G1 region.
28  * @comment -- the following implies that G1 is used (by command-line or by default)
29  * @requires vm.cds.write.archived.java.heap
30  * @requires vm.flagless
31  *
32  * @library /test/hotspot/jtreg/runtime/cds/appcds /test/lib
33  * @build HelloString
34  * @build jdk.test.whitebox.WhiteBox
35  * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
36  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. SharedStringsHumongous
37  */
38 import java.io.File;
39 import java.io.FileOutputStream;
40 import java.io.OutputStreamWriter;
41 import java.io.PrintWriter;
42 import jdk.test.whitebox.WhiteBox;
43 import jdk.test.lib.cds.CDSTestUtils;
44 import jdk.test.lib.process.OutputAnalyzer;
45 import jdk.test.lib.process.ProcessTools;
46 import jdk.test.lib.Asserts;
47 
48 public class SharedStringsHumongous {
49     static String sharedArchiveConfigFile = CDSTestUtils.getOutputDir() + File.separator + "SharedStringsHumongous_gen.txt";
50