/*
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* 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
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* questions .
*/
/*
* @ test
* @ bug 7179567
* @ summary Test that URLClassLoader public constructors and factory methods
* throw NullPointerException when appropriate .
*
* Tests whether URLClassLoader public constructors and factory methods throw
* appropriate NullPointerExceptions for 1 ) a null URL array parameter , and
* 2 ) a non - null URL array containing a null element .
*/
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.jar.JarFile;
public class NullURLTest {
JarFile jarFile;
public static void main(String[] args) throws Throwable {
new NullURLTest();
}
NullURLTest() throws Throwable {
File local = new File(System.getProperty("test.src" , "." ), "jars" );
String path = "jar:file:"
+ local.getPath()
+ "/class_path_test.jar!/Foo.class" ;
URL validURL = new URL(path);
URL[] validURLArray = new URL[] { validURL, validURL };
URL[] invalidURLArray = new URL[] { validURL, null };
int failures = 0 ;
URLClassLoader loader;
try {
loader = new URLClassLoader(validURLArray);
} catch (Throwable t) {
System.err.println("URLClassLoader(validURLArray) threw " + t);
failures++;
}
try {
loader = new URLClassLoader(null );
System.err.println("URLClassLoader(null) did not throw NPE" );
failures++;
} catch (NullPointerException e) {
// expected
}
try {
loader = new URLClassLoader(invalidURLArray);
System.err.println("URLClassLoader(invalidURLArray) did not throw NPE" );
failures++;
} catch (NullPointerException e) {
// expected
}
try {
loader = new URLClassLoader(validURLArray, null );
} catch (Throwable t) {
System.err.println("URLClassLoader(validURLArray, null) threw " + t);
failures++;
}
try {
loader = new URLClassLoader(null , null );
System.err.println("URLClassLoader(null, null) did not throw NPE" );
failures++;
} catch (NullPointerException e) {
// expected
}
try {
loader = new URLClassLoader(invalidURLArray, null );
System.err.println("URLClassLoader(invalidURLArray, null) did not throw NPE" );
failures++;
} catch (NullPointerException e) {
// expected
}
try {
loader = new URLClassLoader(validURLArray, null , null );
} catch (Throwable t) {
System.err.println("URLClassLoader(validURLArray, null, null) threw " + t);
failures++;
}
try {
loader = new URLClassLoader((URL[])null , null , null );
System.err.println("URLClassLoader(null, null, null) did not throw NPE" );
failures++;
} catch (NullPointerException e) {
// expected
}
try {
loader = new URLClassLoader(invalidURLArray, null , null );
System.err.println("URLClassLoader(invalidURLArray, null, null) did not throw NPE" );
failures++;
} catch (NullPointerException e) {
// expected
}
try {
loader = URLClassLoader.newInstance(validURLArray);
} catch (Throwable t) {
System.err.println("URLClassLoader.newInstance(validURLArray) threw " + t);
failures++;
}
try {
loader = URLClassLoader.newInstance(null );
System.err.println("URLClassLoader.newInstance(null) did not throw NPE" );
failures++;
} catch (NullPointerException e) {
// expected
}
try {
loader = URLClassLoader.newInstance(invalidURLArray);
System.err.println("URLClassLoader.newInstance(invalidURLArray) did not throw NPE" );
failures++;
} catch (NullPointerException e) {
// expected
}
try {
loader = URLClassLoader.newInstance(validURLArray, null );
} catch (Throwable t) {
System.err.println("URLClassLoader.newInstance(validURLArray, null) threw " + t);
failures++;
}
try {
loader = URLClassLoader.newInstance(null , null );
System.err.println("URLClassLoader.newInstance(null, null) did not throw NPE" );
failures++;
} catch (NullPointerException e) {
// expected
}
try {
loader = URLClassLoader.newInstance(invalidURLArray, null );
System.err.println("URLClassLoader.newInstance(invalidURLArray, null) did not throw NPE" );
failures++;
} catch (NullPointerException e) {
// expected
}
if (failures != 0 ) {
throw new Exception("URLClassLoader NullURLTest had " +failures+" failures!" );
}
}
}
Messung V0.5 in Prozent C=94 H=95 G=94
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-10-11)
¤
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