/*
* Copyright ( c ) 1999 , 2020 , 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 .
*
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* questions .
*/
/* @test
* @ bug 4214513 8245036
* @ summary Passing a negative offset or length ,
* or passing a combination of offset and length too big
* for readFully must throw IndexOutOfBoundsException .
*/
import java.io.*;
public class ReadFully {
private static final void testNegativeOffset() throws Exception {
File file = new File(System.getProperty("test.src" ),
"ReadFully.java" );
try (FileInputStream in = new FileInputStream(file);
DataInputStream dis = new DataInputStream(in);) {
byte [] buffer = new byte [100 ];
dis.readFully(buffer, -1 , buffer.length);
throw new RuntimeException("Test testNegativeOffset() failed" );
} catch (IndexOutOfBoundsException ignore) {
}
}
private static final void testNegativeLength() throws Exception {
File file = new File(System.getProperty("test.src" ),
"ReadFully.java" );
try (FileInputStream in = new FileInputStream(file);
DataInputStream dis = new DataInputStream(in);) {
byte [] buffer = new byte [100 ];
dis.readFully(buffer, 0 , -1 );
throw new RuntimeException("Test testNegativeLength() failed" );
} catch (IndexOutOfBoundsException ignore) {
}
}
private static final void testNegativeOffsetZeroLength() throws Exception {
File file = new File(System.getProperty("test.src" ),
"ReadFully.java" );
try (FileInputStream in = new FileInputStream(file);
DataInputStream dis = new DataInputStream(in);) {
byte [] buffer = new byte [100 ];
dis.readFully(buffer, -1 , 0 );
throw new RuntimeException("Test testNegativeOffsetZeroLength() failed" );
} catch (IndexOutOfBoundsException ignore) {
}
}
private static final void testBigOffsetLength1() throws Exception {
File file = new File(System.getProperty("test.src" ),
"ReadFully.java" );
try (FileInputStream in = new FileInputStream(file);
DataInputStream dis = new DataInputStream(in);) {
byte [] buffer = new byte [100 ];
dis.readFully(buffer, 0 , buffer.length + 1 );
throw new RuntimeException("Test testBigOffsetLength1() failed" );
} catch (IndexOutOfBoundsException ignore) {
}
}
private static final void testBigOffsetLength2() throws Exception {
File file = new File(System.getProperty("test.src" ),
"ReadFully.java" );
try (FileInputStream in = new FileInputStream(file);
DataInputStream dis = new DataInputStream(in);) {
byte [] buffer = new byte [100 ];
dis.readFully(buffer, 1 , buffer.length);
throw new RuntimeException("Test testBigOffsetLength2() failed" );
} catch (IndexOutOfBoundsException ignore) {
}
}
private static final void testBigOffsetLength3() throws Exception {
File file = new File(System.getProperty("test.src" ),
"ReadFully.java" );
try (FileInputStream in = new FileInputStream(file);
DataInputStream dis = new DataInputStream(in);) {
byte [] buffer = new byte [100 ];
dis.readFully(buffer, buffer.length, 1 );
throw new RuntimeException("Test testBigOffsetLength3() failed" );
} catch (IndexOutOfBoundsException ignore) {
}
}
private static final void testBigOffsetLength4() throws Exception {
File file = new File(System.getProperty("test.src" ),
"ReadFully.java" );
try (FileInputStream in = new FileInputStream(file);
DataInputStream dis = new DataInputStream(in);) {
byte [] buffer = new byte [100 ];
dis.readFully(buffer, buffer.length + 1 , 0 );
throw new RuntimeException("Test testBigOffsetLength4() failed" );
} catch (IndexOutOfBoundsException ignore) {
}
}
public static final void main(String[] args) throws Exception {
testNegativeOffset();
testNegativeLength();
testNegativeOffsetZeroLength();
testBigOffsetLength1();
testBigOffsetLength2();
testBigOffsetLength3();
testBigOffsetLength4();
}
}
Messung V0.5 in Prozent C=95 H=85 G=90
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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