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/*
* Copyright (c) 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 7044282
* @build Class1 Class2 Class3 Class4
* @run main ExceedMaxDim
* @summary Make sure you can't get an array class of dimension > 255.
*/
// Class1, Class2, Class3 and Class4 should not have been loaded prior to the
// calls to forName
public class ExceedMaxDim {
//0123456789012345678901234567890123456789
private String brackets = "[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[" +
"[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[" +
"[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[" +
"[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[" +
"[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[" +
"[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[" +
"[[[[[[[[[[[[[[";
private String name254 = brackets + "Ljava.lang.String;";
private String name255 = "[" + name254;
private String name256 = "[" + name255;
private String name1 = "[Ljava.lang.String;";
private String bigName;
private int error = 0;
private static final ClassLoader IMPLICIT_LOADER = null;
public ExceedMaxDim() {
super();
StringBuilder sb = new StringBuilder(Short.MAX_VALUE + 50);
for (int i = 0; i < Short.MAX_VALUE + 20; i++)
sb.append('[');
sb.append("Ljava.lang.String;");
bigName = sb.toString();
if (name256.lastIndexOf('[') != 255) // 256:th [
throw new RuntimeException("Test broken");
}
public static void main(String[] args) throws Exception {
ExceedMaxDim test = new ExceedMaxDim();
test.testImplicitLoader();
test.testOtherLoader();
if (test.error != 0)
throw new RuntimeException("Test failed, was able to create array with dim > 255." +
" See log for details.");
}
private void testImplicitLoader() throws Exception {
// These four should succeed
assertSucceedForName(name1, IMPLICIT_LOADER);
assertSucceedForName(name254, IMPLICIT_LOADER);
assertSucceedForName(name255, IMPLICIT_LOADER);
assertSucceedForName(brackets + "[LClass1;", IMPLICIT_LOADER);
// The following three should fail
assertFailForName(name256, IMPLICIT_LOADER);
assertFailForName(bigName, IMPLICIT_LOADER);
assertFailForName(brackets + "[[LClass2;", IMPLICIT_LOADER);
}
private void testOtherLoader() throws Exception {
ClassLoader cl = ExceedMaxDim.class.getClassLoader();
// These four should succeed
assertSucceedForName(name1, cl);
assertSucceedForName(name254,cl);
assertSucceedForName(name255, cl);
assertSucceedForName(brackets + "[LClass3;", cl);
// The following three should fail
assertFailForName(name256, cl);
assertFailForName(bigName, cl);
assertFailForName(brackets + "[[Class4;", cl);
}
private void assertFailForName(String name, ClassLoader cl) {
Class<?> c;
try {
if (cl == null)
c = Class.forName(name);
else
c = Class.forName(name, true, cl);
error++;
System.err.println("ERROR: could create " + c);
} catch (ClassNotFoundException e) {
;// ok
}
}
private void assertSucceedForName(String name, ClassLoader cl) {
Class<?> c;
try {
if (cl == null)
c = Class.forName(name);
else
c = Class.forName(name, true, cl);
} catch (ClassNotFoundException e) {
error++;
System.err.println("ERROR: could not create " + name);
}
}
}
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