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* 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 .
*
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*/
/* @test
* @ bug 6628576
* @ modules java . base / java . net : open
* @ summary InterfaceAddress . equals ( ) NPE when broadcast field = = null
*/
import java.net.InterfaceAddress;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
public class Equals
{
public static void main(String[] args) {
InterfaceAddress ia1;
InterfaceAddress ia2;
InetAddress loopbackAddr = InetAddress.getLoopbackAddress();
InetAddress broadcast1 = null ;
InetAddress broadcast2 = null ;
try {
broadcast1 = InetAddress.getByName("255.255.255.0" );
broadcast2 = InetAddress.getByName("255.255.0.0" );
} catch (UnknownHostException e) {
e.printStackTrace();
}
ia1 = createInterfaceAddress(loopbackAddr, (InetAddress) null , (short )45 );
ia2 = createInterfaceAddress(loopbackAddr, (InetAddress) null , (short )45 );
compare(ia1, ia2, true );
ia2 = createInterfaceAddress(loopbackAddr, broadcast1, (short )45 );
compare(ia1, ia2, false );
ia2 = createInterfaceAddress((InetAddress)null , broadcast1, (short )45 );
compare(ia1, ia2, false );
ia1 = createInterfaceAddress(loopbackAddr, broadcast2, (short )45 );
ia2 = createInterfaceAddress(loopbackAddr, broadcast2, (short )45 );
compare(ia1, ia2, true );
ia1.equals(null );
}
static void compare(InterfaceAddress ia1, InterfaceAddress ia2, boolean equal) {
if (ia1.equals(ia2) != equal)
throw new RuntimeException("Failed: " + ia1 + " not equals to " + ia2);
if (ia2.equals(ia1) != equal)
throw new RuntimeException("Failed: " + ia2 + " not equals to " + ia1);
}
/**
* Returns an InterfaceAddress instance with its fields set to the values
* specificed .
*/
static InterfaceAddress createInterfaceAddress(
InetAddress address, InetAddress broadcast, short prefixlength) {
try {
Class <InterfaceAddress> IAClass = InterfaceAddress.class ;
InterfaceAddress ia;
Constructor<InterfaceAddress> ctr = IAClass.getDeclaredConstructor();
ctr.setAccessible(true );
Field addressField = IAClass.getDeclaredField("address" );
addressField.setAccessible(true );
Field broadcastField = IAClass.getDeclaredField("broadcast" );
broadcastField.setAccessible(true );
Field maskLengthField = IAClass.getDeclaredField("maskLength" );
maskLengthField.setAccessible(true );
ia = ctr.newInstance();
addressField.set(ia, address);
broadcastField.set(ia, broadcast);
maskLengthField.setShort(ia, prefixlength);
return ia;
} catch (NoSuchFieldException nsfe) {
nsfe.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InstantiationException ie) {
ie.printStackTrace();
} catch (IllegalAccessException iae) {
iae.printStackTrace();
} catch (InvocationTargetException ite) {
ite.printStackTrace();
}
return null ;
}
}
Messung V0.5 in Prozent C=93 H=94 G=93
¤ Dauer der Verarbeitung: 0.5 Sekunden
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