--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/io/PrintStream/FailingConstructors.java Fri Jan 07 13:08:18 2011 +0000
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2011, 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 7000511
+ * @summary PrintStream, PrintWriter, Formatter, Scanner leave files open when
+ * exception thrown
+ */
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.PrintStream;
+import java.io.UnsupportedEncodingException;
+
+public class FailingConstructors {
+ static final String fileName = "FailingConstructorsTest";
+ static final String UNSUPPORTED_CHARSET = "unknownCharset";
+ static final String FILE_CONTENTS = "This is a small file!";
+
+ private static void realMain(String[] args) throws Throwable {
+ test(false, new File(fileName));
+
+ /* create the file and write its contents */
+ File file = File.createTempFile(fileName, null);
+ file.deleteOnExit();
+ FileOutputStream fos = new FileOutputStream(file);
+ fos.write(FILE_CONTENTS.getBytes());
+ fos.close();
+
+ test(true, file);
+ file.delete();
+ }
+
+ private static void test(boolean exists, File file) throws Throwable {
+ /* PrintStream(File file, String csn) */
+ try {
+ new PrintStream(file, UNSUPPORTED_CHARSET);
+ fail();
+ } catch(FileNotFoundException|UnsupportedEncodingException e) {
+ pass();
+ }
+
+ check(exists, file);
+
+ try {
+ new PrintStream(file, null);
+ fail();
+ } catch(FileNotFoundException|NullPointerException e) {
+ pass();
+ }
+
+ check(exists, file);
+
+ /* PrintStream(String fileName, String csn) */
+ try {
+ new PrintStream(file.getName(), UNSUPPORTED_CHARSET);
+ fail();
+ } catch(FileNotFoundException|UnsupportedEncodingException e) {
+ pass();
+ }
+
+ check(exists, file);
+
+ try {
+ new PrintStream(file.getName(), null);
+ fail();
+ } catch(FileNotFoundException|NullPointerException e) {
+ pass();
+ }
+
+ check(exists, file);
+ }
+
+ private static void check(boolean exists, File file) {
+ if (exists) {
+ /* the file should be unchanged */
+ verifyContents(file);
+ } else {
+ /* the file should not have been created */
+ if (file.exists()) { fail(file + " should not have been created"); }
+ }
+ }
+
+ private static void verifyContents(File file) {
+ try (FileInputStream fis = new FileInputStream(file)) {
+ byte[] contents = FILE_CONTENTS.getBytes();
+ int read, count = 0;
+ while ((read = fis.read()) != -1) {
+ if (read != contents[count++]) {
+ fail("file contents have been altered");
+ return;
+ }
+ }
+ } catch (IOException ioe) {
+ unexpected(ioe);
+ }
+ }
+
+ //--------------------- Infrastructure ---------------------------
+ static volatile int passed = 0, failed = 0;
+ static void pass() {passed++;}
+ static void fail() {failed++; Thread.dumpStack();}
+ static void fail(String message) {System.out.println(message); fail(); }
+ static void unexpected(Throwable t) {failed++; t.printStackTrace();}
+ public static void main(String[] args) throws Throwable {
+ try {realMain(args);} catch (Throwable t) {unexpected(t);}
+ System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
+ if (failed > 0) throw new AssertionError("Some tests failed");}
+}