On Mon, 23 Mar 2026 22:15:56 GMT, Phil Race <[email protected]> wrote:

>> This fix updates DataBuffer subclasses to actually adhere to their stated 
>> specifications by rejecting certain invalid parameters for constructors and 
>> getters and setters.
>> A new egression test for each of the constructor and getter/setter cases is 
>> supplied.
>> 
>> No existing regression tests fail with this change, and standard demos work.
>> 
>> Problems caused by these changes are most likely to occur if the client has 
>> a bug such that 
>> - a client uses the constructors that accept an array and then supplies a 
>> "size" that is greater than the array.
>> - a client uses the constructors that accept an array and then supplies a 
>> "size" that is less than the array and then uses getter/setters that are 
>> within the array but outside the range specified by size. 
>> 
>> Since very few clients (and just one case in the JDK that I found) even use 
>> these array constructors the changes are unlikely to make a difference to 
>> clients.
>> 
>> The CSR is ready for review https://bugs.openjdk.org/browse/JDK-8378116
>
> Phil Race has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   8377568

src/java.desktop/share/classes/java/awt/image/DataBufferFloat.java line 312:

> 310:      */
> 311:     public int getElem(int bank, int i) {
> 312:         checkIndex(i);

this should be `checkIndex(bank, i)` instead

test/jdk/java/awt/image/DataBuffer/DataBufferConstructorTest.java line 218:

> 216:                                     boolean signed, Class 
> expectedExceptionType) {
> 217:         try {
> 218:              new DataBufferShort(dataArray, size);

Any reason why DataBufferUShort is not checked and signed param is ignored?

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/29766#discussion_r3025643266
PR Review Comment: https://git.openjdk.org/jdk/pull/29766#discussion_r3025648736

Reply via email to