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diff --git a/test/java/io/LineNumberReader/MarkReset.java b/test/java/io/LineNumberReader/MarkReset.java
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+++ b/test/java/io/LineNumberReader/MarkReset.java
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+/*
+ * Copyright 1998 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/* @test
+ @bug 4081733
+ @summary Make sure LineNumberReader returns right line number
+ when mark and reset are used
+ */
+
+
+import java.io.*;
+
+public class MarkReset {
+
+ /**
+ * This program creates a LineNumberReader and tries to find all
+ * the non-whitespace characters in the file.
+ */
+ public static void main(String[] args) throws Exception {
+ int n, line;
+
+ LineNumberReader reader = new LineNumberReader
+ (new StringReader("0\r\n1\r2\n3\r\n\r5\r\r7\n\n9"));
+ for (n = 0; n < 7; n++) {
+ skipWhiteSpace(reader); /* Skip all whitespace */
+ int c = reader.read(); /* Read the non-whitespace character */
+ if (c < 0) { /* Might be eof */
+ break; /* It is. Get out of the loop */
+ }
+ line = reader.getLineNumber();
+ if(line != (c - 48)) {
+ throw new Exception("Failed test : Line number expected "
+ + (c - 48) + " got " + line );
+ }
+ }
+ }
+
+ /**
+ * Skip whitespace in the file. Mark and reset
+ */
+ private static void skipWhiteSpace(LineNumberReader reader) throws IOException {
+ while (true) {
+ /* Mark in case the character is not whitespace */
+ reader.mark(10);
+ /* Read the character */
+ int c = reader.read();
+ if (Character.isWhitespace((char) c)) {
+ /* Loop while in whitespace */
+ continue;
+ }
+
+ /* Return to the non-whitespace character */
+ reader.reset();
+ break;
+ }
+ }
+}