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8245036: DataInputStream.readFully(byte[], int, int) does not throw expected IndexOutOfBoundsExceptions

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Reviewed-by: bpb
This commit is contained in:
Raffaello Giulietti 2020-08-07 12:58:40 -07:00 • committed by Brian Burkhalter
parent c8c4d8377a
commit 4ac45a3b50
2 changed files with 101 additions and 22 deletions
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7
src/java.base/share/classes/java/io/DataInputStream.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1994, 2019, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1994, 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
@ -25,6 +25,8 @@
package java.io;
import java.util.Objects;
/**
* A data input stream lets an application read primitive Java data
* types from an underlying input stream in a machine-independent
@ -192,8 +194,7 @@ public class DataInputStream extends FilterInputStream implements DataInput {
* @see java.io.FilterInputStream#in
*/
public final void readFully(byte b[], int off, int len) throws IOException {
if (len < 0)
throw new IndexOutOfBoundsException();
Objects.checkFromIndexSize(off, len, b.length);
int n = 0;
while (n < len) {
int count = in.read(b, off + n, len - n);