test/jdk/java/io/PrintWriter/SubClass.java
author tschatzl
Wed, 24 Jul 2019 11:49:39 +0200
changeset 57508 28ab01c06755
parent 47216 71c04702a3d5
permissions -rw-r--r--
8228388: Add information about dirty/skipped card for Merge HCC in G1 log Summary: Collect and print informatio about the number of processed cards during the Merge HCC phase to improve log output. Reviewed-by: kbarrett, sangheki
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/*
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 * Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/* @test
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   @bug 4103356 4121985
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   @summary Test new subclassing features of PrintWriter
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 */
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import java.io.*;
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public class SubClass {
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    static class PW extends PrintWriter {
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        PW(Writer out) {
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            super(out);
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        }
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        public void println() {
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            try {
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                out.write("[EOL]");
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            } catch (IOException x) {
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                setError();
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            }
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            super.println();
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        }
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    }
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    public static void main(String[] args) throws Exception {
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        StringWriter sw = new StringWriter();
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        PrintWriter pw = new PW(sw);
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        pw.println("Hello");
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        pw.close();
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        String s = sw.toString();
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        System.err.print(s);
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        if (!s.equals("Hello[EOL]" + System.getProperty("line.separator")))
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            throw new Exception("Subclass broken");
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    }
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}