/*
* 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
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* questions .
*/
/*
* @ test
* @ bug 8028780
* @ summary JDK KRB5 module throws OutOfMemoryError when CCache is corrupt
* @ run main / othervm - Xmx8m GssMemoryIssues
*/
import org.ietf.jgss.GSSException;
import org.ietf.jgss.GSSManager;
import org.ietf.jgss.GSSName;
public class GssMemoryIssues {
public static void main(String[] argv) throws Exception {
GSSManager man = GSSManager.getInstance();
String s = "me@REALM" ;
GSSName name = man.createName(s, GSSName.NT_USER_NAME);
byte [] exported = name.export();
// Offset of the length of the mech name. Length in big endian
int lenOffset = exported.length - s.length() - 4 ;
// Make it huge
exported[lenOffset] = 0 x7f;
try {
man.createName(exported, GSSName.NT_EXPORT_NAME);
} catch (GSSException gsse) {
System.out.println(gsse);
}
}
}
Messung V0.5 in Prozent C=94 H=85 G=89
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(vorverarbeitet am 2026-06-10)
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