--- old/test/hotspot/jtreg/runtime/appcds/cacheObject/MirrorWithReferenceFieldsApp.java 2019-07-24 08:26:55.309470184 -0400 +++ /dev/null 2019-07-22 09:37:15.068007775 -0400 @@ -1,99 +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. - * - */ - -import java.io.File; -import java.net.URL; -import sun.hotspot.WhiteBox; - -// -// - Test static final String field with initial value in cached mirror should be also archived. -// - GC should not crash when reference fields in cached mirror are updated at runtime -// - Reference fields are updated to point to runtime created objects -// - Reference fields are nullified -// -public class MirrorWithReferenceFieldsApp { - - // Static String field with initial value - static final String archived_field = "abc"; - - // Static object field - static Object non_archived_field_1; - - // Instance field - Integer non_archived_field_2; - - public MirrorWithReferenceFieldsApp() { - non_archived_field_1 = new Object(); - non_archived_field_2 = new Integer(1); - } - - public static void main(String args[]) throws Exception { - WhiteBox wb = WhiteBox.getWhiteBox(); - - if (!wb.areOpenArchiveHeapObjectsMapped()) { - System.out.println("Archived open_archive_heap objects are not mapped."); - System.out.println("This may happen during normal operation. Test Skipped."); - return; - } - - MirrorWithReferenceFieldsApp m = new MirrorWithReferenceFieldsApp(); - m.test(wb); - } - - public void test(WhiteBox wb) { - Class c = MirrorWithReferenceFieldsApp.class; - if (wb.isSharedClass(c)) { - // Check if the Class object is cached - if (wb.isShared(c)) { - System.out.println(c + " mirror is cached. Expected."); - } else { - throw new RuntimeException( - "FAILED. " + c + " mirror should be cached."); - } - - // Check fields - - if (wb.isShared(archived_field)) { - System.out.println("archived_field is archived as excepted"); - } else { - throw new RuntimeException( - "FAILED. archived_field is not archived."); - } - - // GC should not crash - System.gc(); - System.gc(); - System.gc(); - - non_archived_field_1 = null; - non_archived_field_2 = null; - - System.gc(); - System.gc(); - System.gc(); - - System.out.println("Done."); - } - } -} --- /dev/null 2019-07-22 09:37:15.068007775 -0400 +++ new/test/hotspot/jtreg/runtime/cds/cacheObject/MirrorWithReferenceFieldsApp.java 2019-07-24 08:26:54.973470196 -0400 @@ -0,0 +1,99 @@ +/* + * 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. + * + */ + +import java.io.File; +import java.net.URL; +import sun.hotspot.WhiteBox; + +// +// - Test static final String field with initial value in cached mirror should be also archived. +// - GC should not crash when reference fields in cached mirror are updated at runtime +// - Reference fields are updated to point to runtime created objects +// - Reference fields are nullified +// +public class MirrorWithReferenceFieldsApp { + + // Static String field with initial value + static final String archived_field = "abc"; + + // Static object field + static Object non_archived_field_1; + + // Instance field + Integer non_archived_field_2; + + public MirrorWithReferenceFieldsApp() { + non_archived_field_1 = new Object(); + non_archived_field_2 = new Integer(1); + } + + public static void main(String args[]) throws Exception { + WhiteBox wb = WhiteBox.getWhiteBox(); + + if (!wb.areOpenArchiveHeapObjectsMapped()) { + System.out.println("Archived open_archive_heap objects are not mapped."); + System.out.println("This may happen during normal operation. Test Skipped."); + return; + } + + MirrorWithReferenceFieldsApp m = new MirrorWithReferenceFieldsApp(); + m.test(wb); + } + + public void test(WhiteBox wb) { + Class c = MirrorWithReferenceFieldsApp.class; + if (wb.isSharedClass(c)) { + // Check if the Class object is cached + if (wb.isShared(c)) { + System.out.println(c + " mirror is cached. Expected."); + } else { + throw new RuntimeException( + "FAILED. " + c + " mirror should be cached."); + } + + // Check fields + + if (wb.isShared(archived_field)) { + System.out.println("archived_field is archived as excepted"); + } else { + throw new RuntimeException( + "FAILED. archived_field is not archived."); + } + + // GC should not crash + System.gc(); + System.gc(); + System.gc(); + + non_archived_field_1 = null; + non_archived_field_2 = null; + + System.gc(); + System.gc(); + System.gc(); + + System.out.println("Done."); + } + } +}