120 lines
3.3 KiB
Java
120 lines
3.3 KiB
Java
/*
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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 4071765
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@summary Bug in the parameter of str.getChars called in write
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*/
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import java.io.*;
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public class WriteFromString {
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public static void main(String argv[]) throws Exception {
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LocalStringWriter lsw = new LocalStringWriter();
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boolean result = true;
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String testString = "Testing of what gets written";
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// Should write out at offset 2 for length 4 i.e."stin"
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lsw.write(testString, 1, 4);
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String res = lsw.toString();
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if (!res.equals("esti")) {
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result = false;
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System.err.println("Writer.write is incorrect:" + res);
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}
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// Same bug in stringwriter as well
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StringWriter sw = new StringWriter();
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sw.write(testString, 1, 4);
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res = sw.toString();
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String ss = testString.substring(1,4);
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System.out.println("Substring = "+ss);
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if (!res.equals("esti")) {
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System.err.println("StringWriter.write is incorrect:" + res);
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result = false;
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}
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if (!result) {
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throw new Exception("Writer.write method is incorrect.");
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}
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}
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}
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/**
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* A copy of StringWriter to test the write method in Writer
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*/
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class LocalStringWriter extends Writer {
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private StringBuffer buf;
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/**
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* Create a new string writer, using the default initial string-buffer
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* size.
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*/
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public LocalStringWriter() {
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buf = new StringBuffer();
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lock = buf;
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}
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/**
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* Write a portion of an array of characters.
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*
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* @param cbuf Array of characters
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* @param off Offset from which to start writing characters
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* @param len Number of characters to write
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*/
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public void write(char cbuf[], int off, int len) {
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if ((off < 0) || (off > cbuf.length) || (len < 0) ||
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((off + len) > cbuf.length) || ((off + len) < 0)) {
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throw new IndexOutOfBoundsException();
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} else if (len == 0) {
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return;
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}
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buf.append(cbuf, off, len);
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}
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/**
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* Write a string.
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*/
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public void write(String str) {
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buf.append(str);
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}
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/**
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* Return the buffer's current value as a string.
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*/
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public String toString() {
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return buf.toString();
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}
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public void flush(){ }
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public void close(){ }
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}
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