Hi all We have strange exceptions behavior of RI implementation of Character.codePointAt.method.
Spec 1.5 says public static int codePointAt(char[] a, int index, int limit) Throws: NullPointerException - if a is null. IndexOutOfBoundsException - if the index argument is negative or not less than the limit argument, or if the limit argument is negative or greater than the length of the char array. Practicallty we have RI Character.codePointAt(null, 6, 4) - IndexOutOfBoundsException Character.codePointAt(null, 4, 6) - NPE Character.codePointAt(null, 0, 0) - IndexOutOfBoundsException Harmony Character.codePointAt(null, 6, 4) - NPE Character.codePointAt(null, 4, 6) - NPE Character.codePointAt(null, 0, 0) - NPE Should we follow RI to repeat behavior of exceptions? 2006/8/2, Nathan Beyer (JIRA) <[EMAIL PROTECTED]>:
[ http://issues.apache.org/jira/browse/HARMONY-1033?page=comments#action_12425114 ] Nathan Beyer commented on HARMONY-1033: --------------------------------------- This seems like an extreme edge case. The code implements the specification and Harmony's results aren't surprising. I suggest bringing this up on the mailing list for additional feedback, as I'm not inclined to move forward with this change. The resulting code seems very awkward. > [classlib][lang]compatibility: expected IndexOutOfBoundsException for Character.codePointAt > -------------------------------------------------------------------------------------------- > > Key: HARMONY-1033 > URL: http://issues.apache.org/jira/browse/HARMONY-1033 > Project: Harmony > Issue Type: Bug > Components: Classlib > Reporter: Denis Kishenko > Assigned To: Nathan Beyer > Attachments: Character.patch, CharacterTest.patch > > > Specs 1.5 > Methods throws > NullPointerException - if a is null. > IndexOutOfBoundsException - if offset or count is negative, or if offset + count is larger than the length of the given array. > If first argument is null RI throws NPE only in the second test, it's strange, but we have to follow. > public class bug9276 { > public static void main (String[] args) { > try { > Character.codePointAt(null, 6, 4); > System.err.println("failed 1"); > } catch (IndexOutOfBoundsException e) { > System.err.println("passed 1"); > e.printStackTrace(); > } catch (Exception e) { > System.err.println("failed 1"); > e.printStackTrace(); > } > try { > Character.codePointAt(null, 4, 6); > System.err.println("failed 2"); > } catch (NullPointerException e) { > System.err.println("passed 2"); > e.printStackTrace(); > } catch (Exception e) { > System.err.println("failed 2"); > e.printStackTrace(); > } > try { > Character.codePointAt(null, 0, 0); > System.err.println("failed 3"); > } catch (IndexOutOfBoundsException e) { > System.err.println("passed 3"); > e.printStackTrace(); > } catch (Exception e) { > System.err.println("failed 3"); > e.printStackTrace(); > } > } > > } > Output > RI -------------------------------------------------------------------- > passed 1 > java.lang.IndexOutOfBoundsException > at java.lang.Character.codePointAt(Character.java:2400) > at bug9276.main(bug9276.java:6) > passed 2 > java.lang.NullPointerException > at java.lang.Character.codePointAt(Character.java:2399) > at bug9276.main(bug9276.java:16) > passed 3 > java.lang.IndexOutOfBoundsException > at java.lang.Character.codePointAt(Character.java:2400) > at bug9276.main(bug9276.java:26) > Harmony ----------------------------------------------------------- > failed 1 > java.lang.NullPointerException > at java.lang.Character.codePointAt(Character.java:1918) > at bug9276.main(bug9276.java:6) > passed 2 > java.lang.NullPointerException > at java.lang.Character.codePointAt(Character.java:1918) > at bug9276.main(bug9276.java:16) > failed 3 > java.lang.NullPointerException > at java.lang.Character.codePointAt(Character.java:1918) > at bug9276.main(bug9276.java:26) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
-- Denis M. Kishenko Intel Middleware Products Division --------------------------------------------------------------------- Terms of use : http://incubator.apache.org/harmony/mailing.html To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
