/* * Copyright (c) 2008, 2020, 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.
*/
// 1. parse stream
InputStream ins = new ByteArrayInputStream(input);
DerValue v = new DerValue(ins);
Asserts.assertEQ(new String(v.getOctetString()), "abcd");
if (indefinite) { // Trailing bytes might be consumed by the conversion but can // be found in DerValue "after end".
Field buffer = DerValue.class.getDeclaredField("buffer");
Field end = DerValue.class.getDeclaredField("end");
buffer.setAccessible(true);
end.setAccessible(true); int bufferLen = ((byte[])buffer.get(v)).length; int endPos = end.getInt(v); // Data "after end": bufferLen - endPos // Data remained in stream: ins.available()x`
Asserts.assertEQ(bufferLen - endPos + ins.available(), 8);
} else { // Trailing bytes remain in the stream for definite length
Asserts.assertEQ(ins.available(), 8);
}
// 3. Parse full byte array
Utils.runAndCheckException(() -> new DerValue(input),
e -> Asserts.assertTrue(e instanceof IOException
&& e.getMessage().equals("extra data at the end")));
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