/*
* Copyright (c) 2008, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the Classpath exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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).
*
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package com.sun.btrace.samples;
import static com.sun.btrace.BTraceUtils.*;
import com.sun.btrace.annotations.*;
/**
* A simple BTrace program that prints stack trace
* whenever a class is loaded by a user-defined
* class loader. We insert a return point probe in
* ClassLoader.defineClass method to detect successful
* class load.
*/
@BTrace public class Classload {
@OnMethod(
clazz="+java.lang.ClassLoader",
method="defineClass",
location=@Location(Kind.RETURN)
)
public static void defineclass(@Return Class cl) {
println("loaded " + Reflective.name(cl));
Threads.jstack();
println("==========================");
}
}