/*
* Copyright ( c ) 1998 , 2013 , 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 4100814 7044282
* @ summary Make sure you can ' t create an array of dimension > 256 .
*/
import java.lang.reflect.Array;
public class ExceedMaxDim {
public static void main(String[] args) throws Exception {
newInstanceOne();
newInstanceMulti();
zeroDimension();
}
private static void newInstanceOne() throws Exception {
Object o = getArrayOf256Dimensions();
try {
o = Array.newInstance(o.getClass(), 1 );
} catch (IllegalArgumentException iae) {
System.out.println("success: newInstanceOne test" );
return ;
}
throw new Exception("NewArray allowed dimensions > MAXDIM" );
}
private static void newInstanceMulti() throws Exception {
Object o = getArrayOf256Dimensions();
try {
o = Array.newInstance(o.getClass(), new int [] { 1 , 1 });
o = Array.newInstance(o.getClass(), new int [] { 1 });
} catch (IllegalArgumentException iae) {
System.out.println("success: newInstanceMulti test" );
return ;
}
throw new Exception("MultiNewArray allowed dimensions > MAXDIM" );
}
private static void zeroDimension() throws Exception {
try {
Array.newInstance(Integer.TYPE, new int [0 ]);
} catch (IllegalArgumentException iae) {
System.out.println("success: zeroDimension test" );
return ;
}
throw new Exception("MultiNewArray allowed dimension == 0" );
}
private static Object getArrayOf256Dimensions() {
/* 1 dimension */
Object o = Array.newInstance(Integer.TYPE, 0 );
/* 254 more dimension. */
for (int i = 1 ; i <= 254 ; i++) {
o = Array.newInstance(o.getClass(), 1 );
}
/* 255 in all. */
return o;
}
}
Messung V0.5 in Prozent C=97 H=92 G=94
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-11)
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