100 lines
3.8 KiB
Java
100 lines
3.8 KiB
Java
/*
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* Copyright (c) 2011, 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 4313887 6865748
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* @summary Unit test for java.nio.file.Files.walkFileTree
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*/
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import java.nio.file.*;
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import java.nio.file.attribute.BasicFileAttributes;
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import java.io.IOException;
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import java.util.*;
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public class Nulls {
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static void npeExpected() {
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throw new RuntimeException("NullPointerException expected");
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}
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public static void main(String[] args) throws IOException {
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try {
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Files.walkFileTree(null, EnumSet.noneOf(FileVisitOption.class),
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Integer.MAX_VALUE, new SimpleFileVisitor<Path>(){});
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npeExpected();
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} catch (NullPointerException e) {
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}
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try {
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Files.walkFileTree(Paths.get("."), null, Integer.MAX_VALUE,
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new SimpleFileVisitor<Path>(){});
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npeExpected();
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} catch (NullPointerException e) {
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}
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try {
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Files.walkFileTree(Paths.get("."), EnumSet.noneOf(FileVisitOption.class),
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-1, new SimpleFileVisitor<Path>(){});
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throw new RuntimeException("IllegalArgumentExpected expected");
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} catch (IllegalArgumentException e) {
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}
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try {
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Set<FileVisitOption> opts = new HashSet<>(1);
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opts.add(null);
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Files.walkFileTree(Paths.get("."), opts, Integer.MAX_VALUE,
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new SimpleFileVisitor<Path>(){});
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npeExpected();
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} catch (NullPointerException e) {
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}
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try {
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Files.walkFileTree(Paths.get("."), EnumSet.noneOf(FileVisitOption.class),
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Integer.MAX_VALUE, null);
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npeExpected();
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} catch (NullPointerException e) {
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}
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SimpleFileVisitor<Path> visitor = new SimpleFileVisitor<Path>() { };
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boolean ranTheGauntlet = false;
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Path dir = Paths.get(".");
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BasicFileAttributes attrs = Files.readAttributes(dir, BasicFileAttributes.class);
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try { visitor.preVisitDirectory(null, attrs);
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} catch (NullPointerException x0) {
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try { visitor.preVisitDirectory(dir, null);
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} catch (NullPointerException x1) {
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try { visitor.visitFile(null, attrs);
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} catch (NullPointerException x2) {
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try { visitor.visitFile(dir, null);
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} catch (NullPointerException x3) {
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try { visitor.visitFileFailed(null, new IOException());
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} catch (NullPointerException x4) {
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try { visitor.visitFileFailed(dir, null);
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} catch (NullPointerException x5) {
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try { visitor.postVisitDirectory(null, new IOException());
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} catch (NullPointerException x6) {
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// if we get here then all visit* methods threw NPE as expected
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ranTheGauntlet = true;
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}}}}}}}
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if (!ranTheGauntlet)
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throw new RuntimeException("A visit method did not throw NPE");
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}
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}
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