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/*
* Copyright (c) 2014, 2020, 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
* @bug 8197901 8209758
* @summary Redefine classes with enabling logging to verify Klass:external_name() during GC.
* @comment This test is simplified version of serviceability/jvmti/RedefineClasses/RedefineRunningMethods.java.
* @library /test/lib
* @modules java.compiler
* java.instrument
* @requires vm.jvmti
* @run main RedefineClassHelper
* @run main/othervm -Xmx256m -XX:MaxMetaspaceSize=64m -javaagent:redefineagent.jar -Xlog:all=trace:file=all.log RedefineClasses
*/
// package access top-level class to avoid problem with RedefineClassHelper
// and nested types.
class RedefineClasses_B {
public static void test() {
}
}
public class RedefineClasses {
static Object[] obj = new Object[20];
public static String newB =
"class RedefineClasses_B {" +
" public static void test() { " +
" }" +
"}";
public static void main(String[] args) throws Exception {
RedefineClassHelper.redefineClass(RedefineClasses_B.class, newB);
RedefineClasses_B.test();
for (int i = 0; i < 20 ; i++) {
obj[i] = new byte[1024 * 1024];
System.gc();
}
}
}
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