64 lines
1.8 KiB
Java
64 lines
1.8 KiB
Java
/*
|
|
* Copyright (c) 2014 SAP SE. 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.
|
|
*/
|
|
|
|
public class RecursiveObjectLock {
|
|
|
|
public void testMethod() {
|
|
synchronized (this) {
|
|
nestedLock1();
|
|
}
|
|
}
|
|
|
|
public void nestedLock1() {
|
|
synchronized (this) {
|
|
nestedLock2();
|
|
}
|
|
}
|
|
|
|
public void nestedLock2() {
|
|
synchronized (this) {
|
|
callWait();
|
|
}
|
|
}
|
|
|
|
public void callWait(){
|
|
try {
|
|
this.wait(1);
|
|
} catch (InterruptedException e) {
|
|
e.printStackTrace();
|
|
}
|
|
breakpoint1();
|
|
}
|
|
|
|
public static void breakpoint1() {
|
|
// purpose: hold a breakpoint
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
RecursiveObjectLock ro = new RecursiveObjectLock();
|
|
ro.testMethod();
|
|
System.out.println("ready");
|
|
}
|
|
|
|
}
|