jdk-24/test/jdk/java/io/OutputStreamWriter/CloseWriterOnFailedFlush.java
Brian Burkhalter d55d7e8d87 8136895: Writer not closed with disk full error, file resource leaked
Reviewed-by: djelinski, vtewari
2023-07-21 15:21:02 +00:00

87 lines
3.0 KiB
Java

/*
* Copyright (c) 2023, 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 8136895
* @summary Verify stream closed after write error in StreamEncoder::implClose
*/
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.nio.charset.MalformedInputException;
import java.nio.charset.StandardCharsets;
public class CloseWriterOnFailedFlush {
private static final String STR_IOE = "Test"; // IOException
private static final String STR_MIE = "\ud83c"; // MalformedInputException
public static void main(String[] args) throws IOException {
boolean failed = false;
for (String s : new String[] {STR_IOE, STR_MIE}) {
System.out.println("string: " + s);
ErroringOutputStream stream = new ErroringOutputStream();
try (Writer writer = new OutputStreamWriter(stream,
StandardCharsets.UTF_8.newEncoder())) {
writer.write(s);
} catch (IOException ex) {
Class exClass = ex.getClass();
if (s.equals(STR_IOE) && exClass != IOException.class ||
s.equals(STR_MIE) && exClass != MalformedInputException.class)
throw ex;
}
if (stream.isOpen()) {
System.err.println("Stream is STILL open");
failed = true;
} else {
System.out.println("Stream is closed");
}
}
if (failed)
throw new RuntimeException("Test failed");
}
private static class ErroringOutputStream extends OutputStream {
private boolean open = true;
@Override
public void write(int b) throws IOException {
throw new IOException();
}
public boolean isOpen() {
return open;
}
@Override
public void close() throws IOException {
open = false;
System.out.println("Closing");
}
}
}