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lines changed Original file line number Diff line number Diff line change @@ -236,20 +236,19 @@ public int read() {
236236 * @param length the maximum number of bytes to read.
237237 * @return the total number of bytes read into the buffer, or {@code -1} if there is no more data because the
238238 * end of the stream has been reached.
239+ * @throws NullPointerException If {@code b} is {@code null}.
239240 * @throws IllegalStateException if thread is interrupted while waiting for the first byte.
240241 * @throws IndexOutOfBoundsException if {@code offset} is negative, {@code length} is negative, or {@code length} is
241242 * greater than {@code b.length - offset}.
242243 * @since 2.20.0
243244 */
244245 @ Override
245246 public int read (final byte [] b , final int offset , final int length ) {
246- if (offset > b .length || offset < 0 ) {
247- throw new IndexOutOfBoundsException ("Offset out of bounds: " + offset );
248- }
249- if (length < 0 || length > b .length - offset ) {
250- throw new IndexOutOfBoundsException ("Length out of bounds: " + length );
251- }
252- if (length == 0 ) {
247+ if (b == null ) {
248+ throw new NullPointerException ();
249+ } else if (offset < 0 || length < 0 || length > b .length - offset ) {
250+ throw new IndexOutOfBoundsException ();
251+ } else if (length == 0 ) {
253252 return 0 ;
254253 }
255254 final List <Integer > drain = new ArrayList <>(length );
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