Java example source code file (PathOps.java)
The PathOps.java Java example source code/*
* Copyright (c) 2008, 2012, 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 4313887 6838333 6925932 7006126
* @summary Unit test for java.nio.file.Path path operations
*/
import java.nio.file.*;
public class PathOps {
static final java.io.PrintStream out = System.out;
private String input;
private Path path;
private Exception exc;
private PathOps(String first, String... more) {
out.println();
input = first;
try {
path = FileSystems.getDefault().getPath(first, more);
out.format("%s -> %s", first, path);
} catch (Exception x) {
exc = x;
out.format("%s -> %s", first, x);
}
out.println();
}
Path path() {
return path;
}
void fail() {
throw new RuntimeException("PathOps failed");
}
void checkPath() {
if (path == null) {
throw new InternalError("path is null");
}
}
void check(Object result, String expected) {
out.format("\tExpected: %s\n", expected);
out.format("\tActual: %s\n", result);
if (result == null) {
if (expected == null) return;
} else {
// compare string representations
if (expected != null && result.toString().equals(expected.toString()))
return;
}
fail();
}
void check(Object result, boolean expected) {
check(result, Boolean.toString(expected));
}
PathOps root(String expected) {
out.println("check root");
checkPath();
check(path.getRoot(), expected);
return this;
}
PathOps parent(String expected) {
out.println("check parent");
checkPath();
check(path.getParent(), expected);
return this;
}
PathOps name(String expected) {
out.println("check name");
checkPath();
check(path.getFileName(), expected);
return this;
}
PathOps element(int index, String expected) {
out.format("check element %d\n", index);
checkPath();
check(path.getName(index), expected);
return this;
}
PathOps subpath(int startIndex, int endIndex, String expected) {
out.format("test subpath(%d,%d)\n", startIndex, endIndex);
checkPath();
check(path.subpath(startIndex, endIndex), expected);
return this;
}
PathOps starts(String prefix) {
out.format("test startsWith with %s\n", prefix);
checkPath();
Path s = FileSystems.getDefault().getPath(prefix);
check(path.startsWith(s), true);
return this;
}
PathOps notStarts(String prefix) {
out.format("test not startsWith with %s\n", prefix);
checkPath();
Path s = FileSystems.getDefault().getPath(prefix);
check(path.startsWith(s), false);
return this;
}
PathOps ends(String suffix) {
out.format("test endsWith %s\n", suffix);
checkPath();
Path s = FileSystems.getDefault().getPath(suffix);
check(path.endsWith(s), true);
return this;
}
PathOps notEnds(String suffix) {
out.format("test not endsWith %s\n", suffix);
checkPath();
Path s = FileSystems.getDefault().getPath(suffix);
check(path.endsWith(s), false);
return this;
}
PathOps absolute() {
out.println("check path is absolute");
checkPath();
check(path.isAbsolute(), true);
return this;
}
PathOps notAbsolute() {
out.println("check path is not absolute");
checkPath();
check(path.isAbsolute(), false);
return this;
}
PathOps resolve(String other, String expected) {
out.format("test resolve %s\n", other);
checkPath();
check(path.resolve(other), expected);
return this;
}
PathOps resolveSibling(String other, String expected) {
out.format("test resolveSibling %s\n", other);
checkPath();
check(path.resolveSibling(other), expected);
return this;
}
PathOps relativize(String other, String expected) {
out.format("test relativize %s\n", other);
checkPath();
Path that = FileSystems.getDefault().getPath(other);
check(path.relativize(that), expected);
return this;
}
PathOps normalize(String expected) {
out.println("check normalized path");
checkPath();
check(path.normalize(), expected);
return this;
}
PathOps string(String expected) {
out.println("check string representation");
checkPath();
check(path, expected);
return this;
}
PathOps invalid() {
if (!(exc instanceof InvalidPathException)) {
out.println("InvalidPathException not thrown as expected");
fail();
}
return this;
}
static PathOps test(String first, String... more) {
return new PathOps(first, more);
}
// -- PathOpss --
static void header(String s) {
out.println();
out.println();
out.println("-- " + s + " --");
}
static void doWindowsTests() {
header("Windows specific tests");
// construction
test("C:\\")
.string("C:\\");
test("C:\\", "")
.string("C:\\");
test("C:\\", "foo")
.string("C:\\foo");
test("C:\\", "\\foo")
.string("C:\\foo");
test("C:\\", "foo\\")
.string("C:\\foo");
test("foo", "bar", "gus")
.string("foo\\bar\\gus");
test("")
.string("");
test("", "C:\\")
.string("C:\\");
test("", "foo", "", "bar", "", "\\gus")
.string("foo\\bar\\gus");
// all components present
test("C:\\a\\b\\c")
.root("C:\\")
.parent("C:\\a\\b")
.name("c");
test("C:a\\b\\c")
.root("C:")
.parent("C:a\\b")
.name("c");
test("\\\\server\\share\\a")
.root("\\\\server\\share\\")
.parent("\\\\server\\share\\")
.name("a");
// root component only
test("C:\\")
.root("C:\\")
.parent(null)
.name(null);
test("C:")
.root("C:")
.parent(null)
.name(null);
test("\\\\server\\share\\")
.root("\\\\server\\share\\")
.parent(null)
.name(null);
// no root component
test("a\\b")
.root(null)
.parent("a")
.name("b");
// name component only
test("foo")
.root(null)
.parent(null)
.name("foo");
test("")
.root(null)
.parent(null)
.name("");
// startsWith
test("C:\\")
.starts("C:\\")
.starts("c:\\")
.notStarts("C")
.notStarts("C:")
.notStarts("");
test("C:")
.starts("C:")
.starts("c:")
.notStarts("C")
.notStarts("");
test("\\")
.starts("\\");
test("C:\\foo\\bar")
.starts("C:\\")
.starts("C:\\foo")
.starts("C:\\FOO")
.starts("C:\\foo\\bar")
.starts("C:\\Foo\\Bar")
.notStarts("C:")
.notStarts("C")
.notStarts("C:foo")
.notStarts("");
test("\\foo\\bar")
.starts("\\")
.starts("\\foo")
.starts("\\foO")
.starts("\\foo\\bar")
.starts("\\fOo\\BaR")
.notStarts("foo")
.notStarts("foo\\bar")
.notStarts("");
test("foo\\bar")
.starts("foo")
.starts("foo\\bar")
.notStarts("\\")
.notStarts("");
test("\\\\server\\share")
.starts("\\\\server\\share")
.starts("\\\\server\\share\\")
.notStarts("\\")
.notStarts("");
test("")
.starts("")
.notStarts("\\");
// endsWith
test("C:\\")
.ends("C:\\")
.ends("c:\\")
.notEnds("\\")
.notEnds("");
test("C:")
.ends("C:")
.ends("c:")
.notEnds("");
test("\\")
.ends("\\")
.notEnds("");
test("C:\\foo\\bar")
.ends("bar")
.ends("BAR")
.ends("foo\\bar")
.ends("Foo\\Bar")
.ends("C:\\foo\\bar")
.ends("c:\\foO\\baR")
.notEnds("r")
.notEnds("\\foo\\bar")
.notEnds("");
test("\\foo\\bar")
.ends("bar")
.ends("BaR")
.ends("foo\\bar")
.ends("foO\\baR")
.ends("\\foo\\bar")
.ends("\\Foo\\Bar")
.notEnds("oo\\bar")
.notEnds("");
test("foo\\bar")
.ends("bar")
.ends("BAR")
.ends("foo\\bar")
.ends("Foo\\Bar")
.notEnds("ar")
.notEnds("");
test("\\\\server\\share")
.ends("\\\\server\\share")
.ends("\\\\server\\share\\")
.notEnds("shared")
.notEnds("\\")
.notEnds("");
test("")
.ends("")
.notEnds("\\");
// elements
test("C:\\a\\b\\c")
.element(0, "a")
.element(1, "b")
.element(2, "c");
test("foo.bar\\gus.alice")
.element(0, "foo.bar")
.element(1, "gus.alice");
test("")
.element(0, "");
// subpath
test("C:\\foo")
.subpath(0, 1, "foo");
test("C:foo")
.subpath(0, 1, "foo");
test("foo")
.subpath(0, 1, "foo");
test("C:\\foo\\bar\\gus")
.subpath(0, 1, "foo")
.subpath(0, 2, "foo\\bar")
.subpath(0, 3, "foo\\bar\\gus")
.subpath(1, 2, "bar")
.subpath(1, 3, "bar\\gus")
.subpath(2, 3, "gus");
test("\\\\server\\share\\foo")
.subpath(0, 1, "foo");
test("")
.subpath(0, 1, "");
// isAbsolute
test("foo").notAbsolute();
test("C:").notAbsolute();
test("C:\\").absolute();
test("C:\\abc").absolute();
test("\\\\server\\share\\").absolute();
test("").notAbsolute();
// resolve
test("C:\\")
.resolve("foo", "C:\\foo")
.resolve("D:\\bar", "D:\\bar")
.resolve("\\\\server\\share\\bar", "\\\\server\\share\\bar")
.resolve("C:foo", "C:\\foo")
.resolve("D:foo", "D:foo")
.resolve("", "C:\\");
test("\\")
.resolve("foo", "\\foo")
.resolve("D:bar", "D:bar")
.resolve("C:\\bar", "C:\\bar")
.resolve("\\\\server\\share\\bar", "\\\\server\\share\\bar")
.resolve("\\foo", "\\foo")
.resolve("", "\\");
test("\\foo")
.resolve("bar", "\\foo\\bar")
.resolve("D:bar", "D:bar")
.resolve("C:\\bar", "C:\\bar")
.resolve("\\\\server\\share\\bar", "\\\\server\\share\\bar")
.resolve("\\bar", "\\bar")
.resolve("", "\\foo");
test("foo")
.resolve("bar", "foo\\bar")
.resolve("D:\\bar", "D:\\bar")
.resolve("\\\\server\\share\\bar", "\\\\server\\share\\bar")
.resolve("C:bar", "C:bar")
.resolve("D:foo", "D:foo")
.resolve("", "foo");
test("C:")
.resolve("foo", "C:foo")
.resolve("", "C:");
test("\\\\server\\share\\foo")
.resolve("bar", "\\\\server\\share\\foo\\bar")
.resolve("\\bar", "\\\\server\\share\\bar")
.resolve("D:\\bar", "D:\\bar")
.resolve("\\\\other\\share\\bar", "\\\\other\\share\\bar")
.resolve("D:bar", "D:bar")
.resolve("", "\\\\server\\share\\foo");
test("")
.resolve("", "")
.resolve("foo", "foo")
.resolve("C:\\", "C:\\")
.resolve("C:foo", "C:foo")
.resolve("\\\\server\\share\\bar", "\\\\server\\share\\bar");
// resolveSibling
test("foo")
.resolveSibling("bar", "bar")
.resolveSibling("D:\\bar", "D:\\bar")
.resolveSibling("\\\\server\\share\\bar", "\\\\server\\share\\bar")
.resolveSibling("C:bar", "C:bar")
.resolveSibling("D:foo", "D:foo")
.resolveSibling("", "");
test("foo\\bar")
.resolveSibling("gus", "foo\\gus")
.resolveSibling("D:\\bar", "D:\\bar")
.resolveSibling("\\\\server\\share\\bar", "\\\\server\\share\\bar")
.resolveSibling("C:bar", "C:bar")
.resolveSibling("D:foo", "D:foo")
.resolveSibling("", "foo");
test("C:\\foo")
.resolveSibling("gus", "C:\\gus")
.resolveSibling("D:\\bar", "D:\\bar")
.resolveSibling("\\\\server\\share\\bar", "\\\\server\\share\\bar")
.resolveSibling("C:bar", "C:\\bar")
.resolveSibling("D:foo", "D:foo")
.resolveSibling("", "C:\\");
test("C:\\foo\\bar")
.resolveSibling("gus", "C:\\foo\\gus")
.resolveSibling("D:\\bar", "D:\\bar")
.resolveSibling("\\\\server\\share\\bar", "\\\\server\\share\\bar")
.resolveSibling("C:bar", "C:\\foo\\bar")
.resolveSibling("D:foo", "D:foo")
.resolveSibling("", "C:\\foo");
test("\\\\server\\share\\foo")
.resolveSibling("bar", "\\\\server\\share\\bar")
.resolveSibling("\\bar", "\\\\server\\share\\bar")
.resolveSibling("D:\\bar", "D:\\bar")
.resolveSibling("\\\\other\\share\\bar", "\\\\other\\share\\bar")
.resolveSibling("D:bar", "D:bar")
.resolveSibling("", "\\\\server\\share\\");
test("")
.resolveSibling("", "")
.resolveSibling("foo", "foo")
.resolveSibling("C:\\", "C:\\");
// relativize
test("foo\\bar")
.relativize("foo\\bar", "")
.relativize("foo", "..");
test("C:\\a\\b\\c")
.relativize("C:\\a", "..\\..")
.relativize("C:\\a\\b\\c", "");
test("\\\\server\\share\\foo")
.relativize("\\\\server\\share\\bar", "..\\bar")
.relativize("\\\\server\\share\\foo", "");
test("")
.relativize("", "");
// normalize
test("C:\\")
.normalize("C:\\");
test("C:\\.")
.normalize("C:\\");
test("C:\\..")
.normalize("C:\\");
test("\\\\server\\share")
.normalize("\\\\server\\share\\");
test("\\\\server\\share\\.")
.normalize("\\\\server\\share\\");
test("\\\\server\\share\\..")
.normalize("\\\\server\\share\\");
test("C:")
.normalize("C:");
test("C:.")
.normalize("C:");
test("C:..")
.normalize("C:..");
test("\\")
.normalize("\\");
test("\\.")
.normalize("\\");
test("\\..")
.normalize("\\");
test("foo")
.normalize("foo");
test("foo\\.")
.normalize("foo");
test("foo\\..")
.normalize("");
test("C:\\foo")
.normalize("C:\\foo");
test("C:\\foo\\.")
.normalize("C:\\foo");
test("C:\\.\\foo")
.normalize("C:\\foo");
test("C:\\foo\\..")
.normalize("C:\\");
test("C:\\..\\foo")
.normalize("C:\\foo");
test("\\\\server\\share\\foo")
.normalize("\\\\server\\share\\foo");
test("\\\\server\\share\\foo\\.")
.normalize("\\\\server\\share\\foo");
test("\\\\server\\share\\.\\foo")
.normalize("\\\\server\\share\\foo");
test("\\\\server\\share\\foo\\..")
.normalize("\\\\server\\share\\");
test("\\\\server\\share\\..\\foo")
.normalize("\\\\server\\share\\foo");
test("C:foo")
.normalize("C:foo");
test("C:foo\\.")
.normalize("C:foo");
test("C:.\\foo")
.normalize("C:foo");
test("C:foo\\..")
.normalize("C:");
test("C:..\\foo")
.normalize("C:..\\foo");
test("\\foo")
.normalize("\\foo");
test("\\foo\\.")
.normalize("\\foo");
test("\\.\\foo")
.normalize("\\foo");
test("\\foo\\..")
.normalize("\\");
test("\\..\\foo")
.normalize("\\foo");
test(".")
.normalize("");
test("..")
.normalize("..");
test("\\..\\..")
.normalize("\\");
test("..\\..\\foo")
.normalize("..\\..\\foo");
test("foo\\bar\\..")
.normalize("foo");
test("foo\\bar\\.\\..")
.normalize("foo");
test("foo\\bar\\gus\\..\\..")
.normalize("foo");
test(".\\foo\\.\\bar\\.\\gus\\..\\.\\..")
.normalize("foo");
test("")
.normalize("");
// UNC corner cases
test("\\\\server\\share\\")
.root("\\\\server\\share\\")
.parent(null)
.name(null);
test("\\\\server")
.invalid();
test("\\\\server\\")
.invalid();
test("\\\\server\\share")
.root("\\\\server\\share\\")
.parent(null)
.name(null);
// invalid
test(":\\foo")
.invalid();
test("C::")
.invalid();
test("C:\\?") // invalid character
.invalid();
test("C:\\*") // invalid character
.invalid();
test("C:\\abc\u0001\\foo")
.invalid();
test("C:\\\u0019\\foo")
.invalid();
test("\\\\server\u0019\\share")
.invalid();
test("\\\\server\\share\u0019")
.invalid();
test("foo\u0000\bar")
.invalid();
test("C:\\foo ") // trailing space
.invalid();
test("C:\\foo \\bar")
.invalid();
//test("C:\\foo.") // trailing dot
//.invalid();
//test("C:\\foo...\\bar")
//.invalid();
// normalization at construction time (remove redundant and replace slashes)
test("C:/a/b/c")
.string("C:\\a\\b\\c")
.root("C:\\")
.parent("C:\\a\\b");
test("C://a//b//c")
.string("C:\\a\\b\\c")
.root("C:\\")
.parent("C:\\a\\b");
// hashCode
header("hashCode");
int h1 = test("C:\\foo").path().hashCode();
int h2 = test("c:\\FOO").path().hashCode();
if (h1 != h2)
throw new RuntimeException("PathOps failed");
}
static void doUnixTests() {
header("Unix specific tests");
// construction
test("/")
.string("/");
test("/", "")
.string("/");
test("/", "foo")
.string("/foo");
test("/", "/foo")
.string("/foo");
test("/", "foo/")
.string("/foo");
test("foo", "bar", "gus")
.string("foo/bar/gus");
test("")
.string("");
test("", "/")
.string("/");
test("", "foo", "", "bar", "", "/gus")
.string("foo/bar/gus");
// all components
test("/a/b/c")
.root("/")
.parent("/a/b")
.name("c");
// root component only
test("/")
.root("/")
.parent(null)
.name(null);
// no root component
test("a/b")
.root(null)
.parent("a")
.name("b");
// name component only
test("foo")
.root(null)
.parent(null)
.name("foo");
test("")
.root(null)
.parent(null)
.name("");
// startsWith
test("/")
.starts("/")
.notStarts("")
.notStarts("/foo");
test("/foo")
.starts("/")
.starts("/foo")
.notStarts("/f");
test("/foo/bar")
.starts("/")
.starts("/foo")
.starts("/foo/bar")
.notStarts("/f")
.notStarts("foo")
.notStarts("foo/bar");
test("foo")
.starts("foo")
.notStarts("")
.notStarts("f");
test("foo/bar")
.starts("foo")
.starts("foo/bar")
.notStarts("f")
.notStarts("/foo")
.notStarts("/foo/bar");
test("")
.starts("")
.notStarts("/");
// endsWith
test("/")
.ends("/")
.notEnds("")
.notEnds("foo")
.notEnds("/foo");
test("/foo")
.ends("foo")
.ends("/foo")
.notEnds("fool");
test("/foo/bar")
.ends("bar")
.ends("foo/bar")
.ends("/foo/bar")
.notEnds("ar")
.notEnds("barack")
.notEnds("/bar")
.notEnds("o/bar");
test("foo")
.ends("foo")
.notEnds("")
.notEnds("oo")
.notEnds("oola");
test("foo/bar")
.ends("bar")
.ends("foo/bar")
.notEnds("r")
.notEnds("barmaid")
.notEnds("/bar");
test("foo/bar/gus")
.ends("gus")
.ends("bar/gus")
.ends("foo/bar/gus")
.notEnds("g")
.notEnds("/gus")
.notEnds("r/gus")
.notEnds("barack/gus")
.notEnds("bar/gust");
test("")
.ends("")
.notEnds("/");
// elements
test("a/b/c")
.element(0, "a")
.element(1, "b")
.element(2, "c");
test("")
.element(0, "");
// subpath
test("/foo")
.subpath(0, 1, "foo");
test("foo")
.subpath(0, 1, "foo");
test("/foo/bar")
.subpath(0, 1, "foo")
.subpath(1, 2, "bar")
.subpath(0, 2, "foo/bar");
test("foo/bar")
.subpath(0, 1, "foo")
.subpath(1, 2, "bar")
.subpath(0, 2, "foo/bar");
test("/foo/bar/gus")
.subpath(0, 1, "foo")
.subpath(1, 2, "bar")
.subpath(2, 3, "gus")
.subpath(0, 2, "foo/bar")
.subpath(1, 3, "bar/gus")
.subpath(0, 3, "foo/bar/gus");
test("foo/bar/gus")
.subpath(0, 1, "foo")
.subpath(1, 2, "bar")
.subpath(2, 3, "gus")
.subpath(0, 2, "foo/bar")
.subpath(1, 3, "bar/gus")
.subpath(0, 3, "foo/bar/gus");
test("")
.subpath(0, 1, "");
// isAbsolute
test("/")
.absolute();
test("/tmp")
.absolute();
test("tmp")
.notAbsolute();
test("")
.notAbsolute();
// resolve
test("/tmp")
.resolve("foo", "/tmp/foo")
.resolve("/foo", "/foo")
.resolve("", "/tmp");
test("tmp")
.resolve("foo", "tmp/foo")
.resolve("/foo", "/foo")
.resolve("", "tmp");
test("")
.resolve("", "")
.resolve("foo", "foo")
.resolve("/foo", "/foo");
// resolveSibling
test("foo")
.resolveSibling("bar", "bar")
.resolveSibling("/bar", "/bar")
.resolveSibling("", "");
test("foo/bar")
.resolveSibling("gus", "foo/gus")
.resolveSibling("/gus", "/gus")
.resolveSibling("", "foo");
test("/foo")
.resolveSibling("gus", "/gus")
.resolveSibling("/gus", "/gus")
.resolveSibling("", "/");
test("/foo/bar")
.resolveSibling("gus", "/foo/gus")
.resolveSibling("/gus", "/gus")
.resolveSibling("", "/foo");
test("")
.resolveSibling("foo", "foo")
.resolveSibling("/foo", "/foo")
.resolve("", "");
// relativize
test("/a/b/c")
.relativize("/a/b/c", "")
.relativize("/a/b/c/d/e", "d/e")
.relativize("/a/x", "../../x")
.relativize("/x", "../../../x");
test("a/b/c")
.relativize("a/b/c/d", "d")
.relativize("a/x", "../../x")
.relativize("x", "../../../x")
.relativize("", "../../..");
test("")
.relativize("a", "a")
.relativize("a/b/c", "a/b/c")
.relativize("", "");
// normalize
test("/")
.normalize("/");
test("foo")
.normalize("foo");
test("/foo")
.normalize("/foo");
test(".")
.normalize("");
test("..")
.normalize("..");
test("/..")
.normalize("/");
test("/../..")
.normalize("/");
test("foo/.")
.normalize("foo");
test("./foo")
.normalize("foo");
test("foo/..")
.normalize("");
test("../foo")
.normalize("../foo");
test("../../foo")
.normalize("../../foo");
test("foo/bar/..")
.normalize("foo");
test("foo/bar/gus/../..")
.normalize("foo");
test("/foo/bar/gus/../..")
.normalize("/foo");
// invalid
test("foo\u0000bar")
.invalid();
test("\u0000foo")
.invalid();
test("bar\u0000")
.invalid();
test("//foo\u0000bar")
.invalid();
test("//\u0000foo")
.invalid();
test("//bar\u0000")
.invalid();
// normalization of input
test("//foo//bar")
.string("/foo/bar")
.root("/")
.parent("/foo")
.name("bar");
}
static void npes() {
header("NullPointerException");
Path path = FileSystems.getDefault().getPath("foo");
try {
path.resolve((String)null);
throw new RuntimeException("NullPointerException not thrown");
} catch (NullPointerException npe) {
}
try {
path.relativize(null);
throw new RuntimeException("NullPointerException not thrown");
} catch (NullPointerException npe) {
}
try {
path.compareTo(null);
throw new RuntimeException("NullPointerException not thrown");
} catch (NullPointerException npe) {
}
try {
path.startsWith((Path)null);
throw new RuntimeException("NullPointerException not thrown");
} catch (NullPointerException npe) {
}
try {
path.endsWith((Path)null);
throw new RuntimeException("NullPointerException not thrown");
} catch (NullPointerException npe) {
}
}
public static void main(String[] args) {
// all platforms
npes();
// operating system specific
String osname = System.getProperty("os.name");
if (osname.startsWith("Windows")) {
doWindowsTests();
} else {
doUnixTests();
}
}
}
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