On Mon, 14 Mar 2022 21:27:29 GMT, Joe Darcy <da...@openjdk.org> wrote:
>> Improving the exception messages for out-of-supported-range array types. >> >> I'll update copyrights before pushing. > > Joe Darcy has updated the pull request incrementally with one additional > commit since the last revision: > > Respond to review feedback. src/java.base/share/classes/java/lang/constant/ClassDesc.java line 185: > 183: netRank = Math.addExact(currentDepth, rank); > 184: if (netRank > ConstantUtils.MAX_ARRAY_TYPE_DESC_DIMENSIONS) { > 185: throw new IllegalArgumentException("rank: " + netRank + This doesn’t need to use <code>[Math.addExact](<var>currentDepth</var>, <var>rank</var>)</code>, as <code><var>currentDepth</var></code> will always be in [0, 255], and <code><var>rank</var></code> here is confined to [1, 2<sup>31</sup>-1], so it’s possible to check for <code><var>netRank</var> < 0</code> and use <code>[Integer.toUnsignedString](<var>netRank</var>)</code> (or <code>[Integer.toUnsignedLong](<var>netRank</var>)</code> and let <code>[StringConcatFactory]</code> deal with it): Suggestion: netRank = currentDepth + rank; if (netRank > ConstantUtils.MAX_ARRAY_TYPE_DESC_DIMENSIONS || netRank < 0) { throw new IllegalArgumentException("rank: " + Integer.toUnsignedLong(netRank) + [Integer.toUnsignedLong]: https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html#toUnsignedLong(int) [Integer.toUnsignedString]: https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html#toUnsignedString(int) [Math.addExact]: https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Math.html#addExact(int,int) [StringConcatFactory]: https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/invoke/StringConcatFactory.html ------------- PR: https://git.openjdk.java.net/jdk/pull/7812