/******************************************************************************
* Copyright (c) 2002 - 2014 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*****************************************************************************/
package dynamicCG;
public class MainClass {
private final Object x;
private MainClass(Object x) {
this.x = x;
}
private final String printNull() {
return "*null*";
}
private String callSomething(Object x) {
return "mc:" + (x==null? printNull(): x.toString());
}
private String toStringImpl() {
try {
return "mc:" + x.toString();
} catch (NullPointerException e) {
return callSomething(x);
}
}
@Override
public String toString() {
return toStringImpl();
}
public static void main(String[] args) {
MainClass mc = new MainClass(new ExtraClass("ExtraClass"));
System.err.println(mc.toString());
mc = new MainClass(null);
System.err.println(mc.toString());
mc = new MainClass(new ExtraClass());
System.err.println(mc.toString());
}
}