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From "Andrew Cornwall (JIRA)" <j...@apache.org>
Subject [jira] Closed: (HARMONY-5630) [classlib][pack200] Long.MAX_VALUE not decoded correctly
Date Wed, 26 Mar 2008 18:57:25 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-5630?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Cornwall closed HARMONY-5630.
------------------------------------


This solves the issue with longs. There appears to be another issue with doubles, so I've
opened HARMONY-5657 to address that.

> [classlib][pack200] Long.MAX_VALUE not decoded correctly
> --------------------------------------------------------
>
>                 Key: HARMONY-5630
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5630
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>         Environment: All pack200
>            Reporter: Andrew Cornwall
>            Assignee: Sian January
>             Fix For: 5.0M6
>
>
> The value Long.MAX_VALUE appears not to be decoded correctly all the time. (Perhaps the
value's overflowing while being computed?) Here's a testcase:
> public class SimpleHelloWorld {
>     public static long long1 = -1;
>     public static long long2 = Long.MAX_VALUE;
>     public static void main(String args) {
>         System.out.println(long1 + long2);
>     }
> }
> I packed that with regular compression and then unpacked it. My BcBands.bcLongRef was
[0, 1] instead of  [-1, 9223372036854775807].
> I've got another test case (proprietary code) which causes BcBands.bcLongRef to be [.....,
-1, -1 ....]. I'll send that to Sian by email. That's how I detected this issue - the two
long refs were collapsed into one.

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