--- a/test/hotspot/jtreg/vmTestbase/vm/share/vmcrasher/Crasher.java	Wed Jul 08 17:37:27 2020 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,29 +0,0 @@
-/*
- * Copyright (c) 2012, 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.
- */
-package vm.share.vmcrasher;
-
-public abstract class Crasher implements Runnable {
-
-    public abstract void run();
-
-}

--- a/test/hotspot/jtreg/vmTestbase/vm/share/vmcrasher/CrasherFactory.java	Wed Jul 08 17:37:27 2020 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,35 +0,0 @@
-/*
- * Copyright (c) 2012, 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.
- */
-package vm.share.vmcrasher;
-
-import vm.share.options.BasicOptionObjectFactory;
-import vm.share.options.FClass;
-import vm.share.options.Factory;
-
-@Factory(placeholder_text="Crasher type", default_value="signal", classlist={
-        @FClass(key="signal", description="Crash VM with a signal", type=SignalCrasher.class),
-        @FClass(key="unsafe.gc", description="Crash VM in GC with Unsafe interface", type=UnsafeGCCrasher.class),
-        @FClass(key="unsafe.java", description="Crash VM in Java thread with Unsafe interface", type=UnsafeJavaCrasher.class),
-})
-public class CrasherFactory extends BasicOptionObjectFactory<Runnable> {
-}

--- a/test/hotspot/jtreg/vmTestbase/vm/share/vmcrasher/SignalCrasher.java	Wed Jul 08 17:37:27 2020 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,35 +0,0 @@
-/*
- * Copyright (c) 2012, 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.
- */
-package vm.share.vmcrasher;
-
-import vm.share.ProcessUtils;
-import vm.share.options.Option;
-
-public class SignalCrasher extends Crasher {
-    @Option(name="signalnum", description="signal number", default_value="2")
-    private int num;
-
-    public void run() {
-        ProcessUtils.sendSignal(num);
-    }
-}

--- a/test/hotspot/jtreg/vmTestbase/vm/share/vmcrasher/UnsafeGCCrasher.java	Wed Jul 08 17:37:27 2020 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,51 +0,0 @@
-/*
- * Copyright (c) 2012, 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.
- */
-package vm.share.vmcrasher;
-
-import vm.share.UnsafeAccess;
-
-public class UnsafeGCCrasher extends Crasher {
-
-    private static class C {
-        C next;
-    }
-
-    private static C a = null;
-
-    @SuppressWarnings("restriction")
-    @Override
-    public void run() {
-        try {
-            a = new C();
-            a.next = new C();
-            a.next.next = new C();
-            a.next.next.next = new C();
-            UnsafeAccess.unsafe.putInt(a.next, UnsafeAccess.unsafe.objectFieldOffset(C.class.getDeclaredField("next")), 0xDEADCAFE);
-            System.gc();
-            Thread.sleep(1000);
-        } catch ( Throwable t ) {
-            t.printStackTrace();
-        }
-    }
-
-}

--- a/test/hotspot/jtreg/vmTestbase/vm/share/vmcrasher/UnsafeJavaCrasher.java	Wed Jul 08 17:37:27 2020 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,47 +0,0 @@
-/*
- * Copyright (c) 2012, 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.
- */
-package vm.share.vmcrasher;
-
-import vm.share.UnsafeAccess;
-
-public class UnsafeJavaCrasher extends Crasher {
-
-    private static class C {
-        C next;
-    }
-
-    @SuppressWarnings("restriction")
-    @Override
-    public void run() {
-        try {
-            C a = new C();
-            a.next = new C();
-            a.next.next = new C();
-            UnsafeAccess.unsafe.putInt(a.next, UnsafeAccess.unsafe.objectFieldOffset(C.class.getDeclaredField("next")), 0xDEADCAFE);
-            a.next.next.next = new C();
-        } catch ( Throwable t ) {
-            t.printStackTrace();
-        }
-    }
-
-}