Re: Another Classpath / Kissme incompatibility

[Casey Marshall]

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Stephen Crawley wrote:
>>Casey Marshall <address@hidden> writes:
>
>
>>>This patch seems to work for me, but I'm not sure if this is the way
>>>the initialization should be done (i.e. it assigns in, out, and err
>>>invalid FileDescriptors first, then the nativeInit() method fills in
>>>their correct nativeFd values).
>>>
>>>I'm no JNI expert, so this could be wrong.
>
> Without this change, I found that the static FileDescriptor fields had
value
> null; i.e. they were being clobbered after nativeInit9) had set them.
 I didn't
> look at the bytecodes, but my guess is that Jikes is emitting an opcode to
> initialize the fields, even though this may be notionally unnecessary.
>

That was because the null-initializations came after the static
intitializer -- java compilers (as per the JLS) should combine static
intitializations and the explicit static intitializer into a single
static code block, in the order they appear in the file.

See:
http://java.sun.com/docs/books/jls/second_edition/html/execution.doc.html#44630
(step 8).

- --
Casey Marshall || address@hidden
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