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/*
* Copyright (c) 2008, 2010, 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
* @summary Verify that if InputStream.read returns 0 we throw an exception.
* @bug 4684515
*/
import java.io.*;
public class ReadZero {
public static void main(String [] args) throws IOException {
ReadZero r = new ReadZero();
r.testInputStream();
}
private void testInputStream() throws IOException {
File f = new File(System.getProperty("test.src", "."), "ReadZero.java");
InputStream is = new FileInputStream(f) {
public int read(byte [] b, int off, int len) {
System.out.println("FileInputStream.read");
return 0;
}
};
try {
is.read(new byte[1], 0, 1); // ok
InputStreamReader isr = new InputStreamReader(is);
try {
int res = isr.read(new char[1], 0, 1);
} catch (IOException x) {
System.out.println("IOException caught");
return;
}
} finally {
is.close();
}
throw new RuntimeException("IOException not thrown");
}
}
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