Java example source code file (Exceptions.java)
The Exceptions.java Java example source code/*
* Copyright (c) 2002, 2006, 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 4472841 4703640 4705681 4705683 4833095 5005831
* @summary Verify that constructor exceptions are thrown as expected.
*/
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
public class Exceptions {
private static final byte [] b = { 0x48, 0x69, 0x2c, 0x20,
0x44, 0x75, 0x6b, 0x65, 0x21 };
private static final char [] c
= "Attack of the Killer Tomatoes!".toCharArray();
private static boolean ok = true;
private static void fail(Class ex, String s) {
ok = false;
System.err.println("expected " + ex.getName() + " for " + s
+ " - FAILED");
}
private static void pass(String s) {
System.out.println(s + " -- OK");
}
private static void tryCatch(String s, Class ex, Runnable thunk) {
Throwable t = null;
try {
thunk.run();
} catch (Throwable x) {
if (ex.isAssignableFrom(x.getClass()))
t = x;
else
x.printStackTrace();
}
if ((t == null) && (ex != null))
fail(ex, s);
else
pass(s);
}
// -- Constructors --
private static void noArgs() {
System.out.println("String()");
tryCatch(" default ctor", null, new Runnable() {
public void run() {
new String();
}});
}
private static void string() {
System.out.println("String(String original)");
tryCatch(" \"foo\"", null, new Runnable() {
public void run() {
new String("foo");
}});
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
new String((String) null);
}});
}
private static void charArray() {
System.out.println("String(char value[])");
tryCatch(" char [] = \"Duke says \"Hi!\"\"", null, new Runnable() {
public void run() {
new String("Duke says \"Hi!\"".toCharArray());
}});
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
new String((char []) null);
}});
}
private static void charArrayOffCount() {
System.out.println("String(char value[], int offset, int count)");
tryCatch(" c, 0, 3", null, new Runnable() {
public void run() {
new String(c, 0, 3);
}});
tryCatch(" null, 1, 2", NullPointerException.class, new Runnable() {
public void run() {
new String((char []) null, 1, 2);
}});
tryCatch(" c, -1, 4", IndexOutOfBoundsException.class,
new Runnable() {
public void run() {
new String(c, -1, 4);
}});
tryCatch(" c, 1, -1", IndexOutOfBoundsException.class,
new Runnable() {
public void run() {
new String(c, 1, -1);
}});
tryCatch(" c, c.lengh + 1, 1", IndexOutOfBoundsException.class,
new Runnable() {
public void run() {
new String(c, c.length + 1, 1);
}});
tryCatch(" c, 0, c.length + 1", IndexOutOfBoundsException.class,
new Runnable() {
public void run() {
new String(c, 0, c.length + 1);
}});
}
private static void byteArrayHiOffCount() {
System.out.println("String(byte ascii[], int hibyte, int offset, "
+ "int count)");
tryCatch(" b, 0, 0, b.length", null, new Runnable() {
public void run() {
System.out.println(new String(b, 0, 0, b.length));
}});
tryCatch(" b, -1, 4, 4", null, new Runnable() {
public void run() {
new String(b, -1, 4, 4);
}});
tryCatch(" null, 0, 0, 0", NullPointerException.class,
new Runnable() {
public void run() {
new String((byte[]) null, 0, 0, 0);
}});
tryCatch(" b, 0, -1, r", IndexOutOfBoundsException.class,
new Runnable() {
public void run() {
new String(b, 0, -1, 4);
}});
tryCatch(" b, 0, 4, -1", IndexOutOfBoundsException.class,
new Runnable() {
public void run() {
new String(b, 0, 4, -1);
}});
tryCatch(" b, 0, b.length + 1, 1", IndexOutOfBoundsException.class,
new Runnable() {
public void run() {
new String(b, 0, b.length + 1, 1);
}});
tryCatch(" b, 0, 0, b.length + 1", IndexOutOfBoundsException.class,
new Runnable() {
public void run() {
new String(b, 0, 0, b.length + 1);
}});
}
private static void byteArrayHi() {
System.out.println("String(byte ascii[], int hibyte)");
tryCatch(" b, 0", null, new Runnable() {
public void run() {
new String(b, 0);
}});
tryCatch(" null, 0", NullPointerException.class, new Runnable() {
public void run() {
new String((byte []) null, 0);
}});
}
private static void byteArrayOffLengthCharset0(String s, Class ex,
byte [] b, int off,
int len, Object cs)
{
Throwable t = null;
try {
if (cs instanceof String)
new String(b, off, len, (String)cs);
else // (cs instanceof Charset)
new String(b, off, len, (Charset)cs);
} catch (Throwable x) {
if (ex.isAssignableFrom(x.getClass()))
t = x;
else
x.printStackTrace();
}
if ((t == null) && (ex != null))
fail(ex, s);
else
pass(s);
}
private static void byteArrayOffLengthCharsetName() {
System.out.println("String(byte bytes[], int offset, int length, "
+ "String charsetName)");
System.out.println(" throws UnsupportedEncodingException");
String enc = "UTF-8";
byteArrayOffLengthCharset0(" b, 0, 0," + enc, null, b, 0, 0, enc);
byteArrayOffLengthCharset0(" null, 0, 0," + enc,
NullPointerException.class,
(byte []) null, 0, 0, enc);
byteArrayOffLengthCharset0(" b, -1, 0, " + enc,
IndexOutOfBoundsException.class,
b, -1, 0, enc);
byteArrayOffLengthCharset0(" b, 0, -1, " + enc,
IndexOutOfBoundsException.class,
b, 0, -1, enc);
byteArrayOffLengthCharset0(" b, b.length + 1, 1, " + enc,
IndexOutOfBoundsException.class,
b, b.length + 1, 1, enc);
byteArrayOffLengthCharset0(" b, 0, b.length + 1 " + enc,
IndexOutOfBoundsException.class,
b, 0, b.length + 1, enc);
byteArrayOffLengthCharset0(" b, -1, 0, null",
NullPointerException.class,
b, -1, 0, null);
byteArrayOffLengthCharset0(" b, 0, b.length, foo",
UnsupportedEncodingException.class,
b, 0, b.length, "foo");
}
private static void byteArrayOffLengthCharset() {
System.out.println("String(byte bytes[], int offset, int length, "
+ "Charset charset)");
Charset cs = Charset.forName("UTF-16BE");
byteArrayOffLengthCharset0(" b, 0, 0," + cs, null, b, 0, 0, cs);
byteArrayOffLengthCharset0(" null, 0, 0," + cs,
NullPointerException.class,
(byte []) null, 0, 0, cs);
byteArrayOffLengthCharset0(" b, -1, 0, " + cs,
IndexOutOfBoundsException.class,
b, -1, 0, cs);
byteArrayOffLengthCharset0(" b, 0, -1, " + cs,
IndexOutOfBoundsException.class,
b, 0, -1, cs);
byteArrayOffLengthCharset0(" b, b.length + 1, 1, " + cs,
IndexOutOfBoundsException.class,
b, b.length + 1, 1, cs);
byteArrayOffLengthCharset0(" b, 0, b.length + 1 " + cs,
IndexOutOfBoundsException.class,
b, 0, b.length + 1, cs);
byteArrayOffLengthCharset0(" b, -1, 0, null",
NullPointerException.class,
b, -1, 0, null);
}
private static void byteArrayCharset0(String s, Class ex, byte [] b,
Object cs)
{
Throwable t = null;
try {
if (cs instanceof String)
new String(b, (String)cs);
else // (cs instanceof Charset)
new String(b, (Charset)cs);
} catch (Throwable x) {
if (ex.isAssignableFrom(x.getClass()))
t = x;
else
x.printStackTrace();
}
if ((t == null) && (ex != null))
fail(ex, s);
else
pass(s);
}
private static void byteArrayCharsetName() {
System.out.println("String(byte bytes[], String charsetName)");
System.out.println(" throws UnsupportedEncodingException");
String enc = "US-ASCII";
byteArrayCharset0(" b, " + enc, null, b, enc);
byteArrayCharset0(" null, " + enc, NullPointerException.class,
(byte []) null, enc);
byteArrayCharset0(" b, null", NullPointerException.class, b, null);
byteArrayCharset0(" null, null", NullPointerException.class,
(byte []) null, null);
byteArrayCharset0(" b, bar", UnsupportedEncodingException.class,
b, "bar");
}
private static void byteArrayCharset() {
System.out.println("String(byte bytes[], Charset charset)");
Charset cs = Charset.forName("ISO-8859-1");
byteArrayCharset0(" b, " + cs, null, b, cs);
byteArrayCharset0(" null, " + cs, NullPointerException.class,
(byte []) null, cs);
byteArrayCharset0(" b, null", NullPointerException.class, b, null);
byteArrayCharset0(" null, null", NullPointerException.class,
(byte []) null, null);
}
private static void byteArrayOffLength() {
System.out.println("String(byte bytes[], int offset, int length)");
tryCatch(" b, 0, b.length", null, new Runnable() {
public void run() {
new String(b, 0, b.length);
}});
tryCatch(" null, 0, 0", NullPointerException.class, new Runnable() {
public void run() {
new String((byte []) null, 0, 0);
}});
tryCatch(" b, -1, b.length", IndexOutOfBoundsException.class,
new Runnable() {
public void run() {
new String(b, -1, b.length);
}});
tryCatch(" b, 0, -1", IndexOutOfBoundsException.class,
new Runnable() {
public void run() {
new String(b, 0, -1);
}});
tryCatch(" b, b.length + 1, 1", IndexOutOfBoundsException.class,
new Runnable() {
public void run() {
new String(b, b.length + 1, 1);
}});
tryCatch(" b, 0, b.length", IndexOutOfBoundsException.class,
new Runnable() {
public void run() {
new String(b, 0, b.length + 1);
}});
}
private static void byteArray() {
System.out.println("String(byte bytes[])");
tryCatch(" b", null, new Runnable() {
public void run() {
new String(b);
}});
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
new String((byte []) null);
}});
}
private static void stringBuffer() {
System.out.println("String(StringBuffer buffer)");
tryCatch(" \"bar\"", null, new Runnable() {
public void run() {
new String(new StringBuffer("bar"));
}});
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
new String((StringBuffer) null);
}});
}
// -- Methods --
private static void getChars() {
System.out.println("getChars.(int srcBegin, int srcEnd, char dst[], "
+ " int dstBegin");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".getChars(1, 2, null, 1);
}});
}
private static void getBytes() {
System.out.println("getChars.(int srcBegin, int srcEnd, char dst[], "
+ " int dstBegin");
tryCatch(" 1, 2, null, 1", NullPointerException.class, new Runnable() {
public void run() {
"foo".getBytes(1, 2, null, 1);
}});
System.out.println("getBytes.(String charsetName)"
+ " throws UnsupportedEncodingException");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
try {
"foo".getBytes((String)null);
} catch (UnsupportedEncodingException x) {
throw new RuntimeException(x);
}
}});
System.out.println("getBytes.(Charset charset)");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".getBytes((Charset)null);
}});
}
private static void contentEquals() {
System.out.println("contentEquals(StringBuffer sb)");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".contentEquals(null);
}});
}
private static void compareTo() {
System.out.println("compareTo(String anotherString)");
tryCatch(" (String) null", NullPointerException.class, new Runnable() {
public void run() {
"foo".compareTo((String) null);
}});
/* 4830291 (javac generics bug) causes this test to fail
System.out.println("compareTo(Object o)");
tryCatch(" (Object) null", NullPointerException.class, new Runnable() {
public void run() {
"foo".compareTo((Object) null);
}});
*/
}
private static void compareToIgnoreCase() {
System.out.println("compareToIgnoreCase(String anotherString)");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".compareToIgnoreCase((String) null);
}});
}
private static void regionMatches() {
System.out.println("regionMatches(int toffset, String other,"
+ " int ooffset, int len)");
tryCatch(" 1, null, 1, 1", NullPointerException.class, new Runnable() {
public void run() {
"foo".regionMatches(1, null, 1, 1);
}});
System.out.println("regionMatches(boolean ignore, int toffset,"
+ " String other, int ooffset, int len)");
tryCatch(" true, 1, null, 1, 1", NullPointerException.class,
new Runnable() {
public void run() {
"foo".regionMatches(true, 1, null, 1, 1);
}});
}
private static void startsWith() {
System.out.println("startsWith(String prefix, int toffset)");
tryCatch(" null, 1", NullPointerException.class, new Runnable() {
public void run() {
"foo".startsWith(null, 1);
}});
System.out.println("startsWith(String prefix)");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".startsWith(null);
}});
}
private static void endsWith() {
System.out.println("endsWith(String suffix)");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".endsWith(null);
}});
}
private static void indexOf() {
System.out.println("indexOf(String str)");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".indexOf(null);
}});
System.out.println("indexOf(String str, int fromIndex)");
tryCatch(" null, 1", NullPointerException.class, new Runnable() {
public void run() {
"foo".indexOf(null, 1);
}});
}
private static void lastIndexOf() {
System.out.println("lastIndexOf(String str)");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".lastIndexOf(null);
}});
System.out.println("lastIndexOf(String str, int fromIndex)");
tryCatch(" null, 1", NullPointerException.class, new Runnable() {
public void run() {
"foo".lastIndexOf(null, 1);
}});
}
private static void concat() {
System.out.println("concat(String str)");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".concat(null);
}});
}
private static void matches() {
System.out.println("matches(String regex)");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".matches(null);
}});
}
private static void replaceFirst() {
System.out.println("replaceFirst(String regex, String replacement)");
tryCatch(" \".\", null", NullPointerException.class, new Runnable() {
public void run() {
"foo".replaceFirst(".", null);
}});
tryCatch(" null, \"-\"", NullPointerException.class, new Runnable() {
public void run() {
"foo".replaceFirst(null, "-");
}});
}
private static void replaceAll() {
System.out.println("replaceAll(String regex, String replacement)");
tryCatch(" \".\", null", NullPointerException.class, new Runnable() {
public void run() {
"foo".replaceAll(".", null);
}});
tryCatch(" null, \"-\"", NullPointerException.class, new Runnable() {
public void run() {
"foo".replaceAll(null, "-");
}});
}
private static void split() {
System.out.println("split(String regex, int limit)");
tryCatch(" null, 1", NullPointerException.class, new Runnable() {
public void run() {
"foo".split(null, 1);
}});
System.out.println("split(String regex, int limit)");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".split(null);
}});
}
private static void toLowerCase() {
System.out.println("toLowerCase(Locale locale)");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".toLowerCase(null);
}});
}
private static void toUpperCase() {
System.out.println("toUpperCase(Locale locale)");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
"foo".toUpperCase(null);
}});
}
private static void valueOf() {
System.out.println("valueOf(Object obj)");
tryCatch(" null", null, new Runnable() {
public void run() {
String.valueOf((Object) null);
}});
System.out.println("valueOf(char data[])");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
String.valueOf((char []) null);
}});
System.out.println("valueOf(char data[], int offset, int count)");
tryCatch(" null, 1, 2", NullPointerException.class, new Runnable() {
public void run() {
String.valueOf((char []) null, 1, 2);
}});
}
private static void copyValueOf() {
System.out.println("copyValueOf(char data[], int offset, int count)");
tryCatch(" null, 1, 2", NullPointerException.class, new Runnable() {
public void run() {
"foo".copyValueOf((char []) null, 1, 2);
}});
System.out.println("copyVlueOf(char data[])");
tryCatch(" null", NullPointerException.class, new Runnable() {
public void run() {
String.copyValueOf((char []) null);
}});
}
public static void main(String [] args) {
// -- Constructors --
noArgs(); // String()
string(); // String(String original)
charArray(); // String(char value[])
charArrayOffCount(); // String(char value[], int offset, int count)
// String(byte ascii[], int hibyte, int offset, int count)
byteArrayHiOffCount();
byteArrayHi(); // String(byte ascii[], int hibyte)
// String(byte bytes[], int offset, int length, String charsetName)
// throws UnsupportedEncodingException
byteArrayOffLengthCharsetName();
// String(byte bytes[], int offset, int length, Charset charset)
byteArrayOffLengthCharset();
// String(byte bytes[], String charsetName)
// throws UnsupportedEncodingException
byteArrayCharsetName();
// String(byte bytes[], Charset charset)
byteArrayCharset();
byteArrayOffLength(); // String(byte bytes[], int offset, int length)
byteArray(); // String(byte bytes[])
stringBuffer(); // String(StringBuffer buffer)
// -- Methods --
getChars(); // getChars(int, int. char [], int)
getBytes(); // getBytes(int, int, byte [], int),
// getBytes(Locale)
// getBytes(String)
// getBytes(Charset)
contentEquals(); // contentEquals(StringBuffer)
compareTo(); // compareTo(String), compareTo(Object)
compareToIgnoreCase();// compareToIgnoreCase(String)
regionMatches(); // regionMatches(int, String, int, int)
// regionMatches(boolean, int, String, int, int)
startsWith(); // startsWith(String, int), startsWith(String)
endsWith(); // endsWith(String)
indexOf(); // indexOf(String), indexOf(String, int),
lastIndexOf(); // lastIndexOf(String), lastIndexOf(String, int)
concat(); // concat(String)
matches(); // matches(String)
replaceFirst(); // replaceFirst(String, String)
replaceAll(); // replaceAll(String, String)
split(); // split(String, int), split(String)
toLowerCase(); // toLowerCase(Locale)
toUpperCase(); // toUpperCase(Locale)
valueOf(); // valueOf(Object), valueOf(char []),
// valueOf(char [], int, int)
copyValueOf(); // copyValueOf(char [], int, int),
// copyValueOf(char [])
if (!ok)
throw new RuntimeException("Some tests FAILED");
else
System.out.println("All tests PASSED");
}
}
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