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Posted to commits@harmony.apache.org by "George Timoshenko (JIRA)" <ji...@apache.org> on 2006/11/13 12:46:38 UTC
[jira] Updated: (HARMONY-2164) static initializer is not being
called on 'new' bytecode
[ http://issues.apache.org/jira/browse/HARMONY-2164?page=all ]
George Timoshenko updated HARMONY-2164:
---------------------------------------
Attachment: testcase.tgz
This "optimization" works correctly until there is a cycle of staticinit calls. (see the testcase).
In the normal way we have the following sequence:
test()
new A
call A.<clinit>
; testFieldA ia 222 here
new B
call B.<clinit>
new A ; without further A.<clinit> as it was called already
copy A.testFieldA --> B.testFieldB ; the value is 222
set A.testFieldA = 2000
get B.testFieldB
and ensure it is 222
But with the "optimization" B.<clinit> is being called _firstly_(!):
test()
new A;
call B.<clinit> ; before getstatic B.testFieldB
new A
new B ; without B.<clinit> !!!
set A.testFieldA to 2000
copy A.testFieldA into B.tesfFieldB ; BUT THE VALUE IS 2000 !!!
check B.testFieldB
and see that it is not 222 :(
> static initializer is not being called on 'new' bytecode
> --------------------------------------------------------
>
> Key: HARMONY-2164
> URL: http://issues.apache.org/jira/browse/HARMONY-2164
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: George Timoshenko
> Attachments: testcase.tgz
>
>
> There is an "optimization" in DRLVM: staticinit is being called before each static use of a class.
> But the SPEC says it also should be called on each "new" bytecode.
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