Gianni said:Assume I got a *.class file.
Is there a way to find out with which java version (e.g. 1.5upd14 or v1.6.upd20) this *.class
file was previously compiled?
Cross-posting is not terrible, but usually it's enough to post your
query in one newsgroup or another without cross-posting. That's
especially true for comp.lang.java.programmer and comp.lang.java.help
which have substantially the same readership.
You did do the cross-post exactly correctly, mind you. No complaints
there. It just probably didn't do very much to help you.
That's absolutely fascinating, but it's also completely irrelevant as a
response to "Is there a way to find out with which java version (e.g.
1.5upd14 or v1.6.upd20) this *.class file was previously compiled?"
Wrong.
No, not wrong. Your comments about cross-posting correctly do, indeed,
have ****-all to do with determining the version of Java used to compile
an in-hand .class file.
You are mistaken.
Your own post is similarly relevant as mine.
Both of us sought to improve the user's experience by pointing out some
metainformation about the communication channel.
Neither of us answered the query directly, true
By pointing out with positive reinforcement that the OP had used cross-
posting correctly, albeit perhaps not usefully, I was providing meta-
information that will improve his results in all communications through
the news group.
By pointing out what you perceive as off-purpose communication, you
clearly hope to reduce the signal-to-noise ratio thus helping relevant
information stand out more clearly. Bully for you.
ClassCastException said:I think it would have improved his results a lot more had your initial
followup contained an actual answer to his question.
<http://java.sun.com/docs/books/jvms/second_edition/html/ClassFile.doc.html>
The first four bytes of the class file comprise the magic number
0xCAFEBABE (unsigned int).
The next two bytes comprise the minor version number of the class file
format (unsigned short).
The next two bytes comprise the major version number of the class file
format (unsigned short).
The major and minor versions tell you what version of Java can run the
class file, but not necessarily which version produced it. I don't
know of any way to get at the Java version that compiled it, but you
can live without that information anyway.
Class file formats do not change between minor Java version updates,
and not even necessarily between major Java version updates.
You should know that Java 5u14 and 6u20 lack certain critical bug and
security fixes and you should upgrade to the latest available versions
of those products, updates 22 and 21, respectively. (Java 5 has been
frozen for public use at update 22, having reached its end-of-service-
life on November 3, 2009, though paying customers can get more recent
updates. Yes, that's right, Java 5 has been officially obsolete for
nine months, a fact that your customers who are only just now
upgrading from their obsolete 8 1/2-year-old version to the obsolete
nearly-6-year-old version really should find out.)
You can find which major class file versions correspond to which Java
versions at
<http://mindprod.com/jgloss/javaclassformat.html>
Have you been reading this thread?
I not only answered his question first, I was first to answer his
question. My comments about cross-posting were sent nearly an hour
later.
Yes -- every post of it.
That's simply not true. This thread consists of:
That's it. Every post by you is either the cross-posting comment or a
descendant of that and none of them answer the OP's question. Eternal-
September currently has 11 posts of this thread -- about to become 12.
If you did post anything else to this thread, it failed to propagate.
I notice you make most of your posts through Albasani, but your initial
cross-post comment was posted via Google Groups. I suspect you'd resort
to Google Groups only if something was wrong with Albasani at the time.
Perhaps you attempted to post an actual answer to the OP's problem via
Albasani just as it developed technical difficulties, and Albasani
claimed the post was successful and perhaps did spool it locally but
failed to propagate it due to the precise timing of the fault?
For the record:Apparently not, as your responses /infra/ show. Also, I pointed out
that the question was rhetorical. How interesting that you chose to
answer anyway.
It simply is true.
You're just being fractious to be a troll.
Wrong. I quoted the post in its entirety. I got that quote from
Usenet, from the post I put up on 8/4 at 15:33 Z. Did you read my
quote? Your argument is based on false premises. I conclude that you
are just being argumentative.
Except my first one, which for some reason you missed or suppressed.
I count 17 about to become 18 with this here post right here. You
should get your ISP straightened out.
Your count is waaaaay off. ASre you sure you
How generous of you to allow, but it propagated just fine.
<http://groups.google.com/group/comp.lang.java.help/browse_thread/thread/c8afff58b21f093c#>
shows it, for example.
I still see my original post nearly two weeks later, both from Albasani
and from GG (the latter linked from this post).
Lars said:For the record:
I see only 12 posts in this thread (in comp.lang.java.programmer). I
don't subscribe to comp.lang.java.help, and I don't see your first reply
to the OP.
Apparently not, as your responses /infra/ show.
Also, I pointed out that the question was rhetorical. How interesting
that you chose to answer anyway.
It simply is true.
You're just being fractious to be a troll.
Incorrect.
Wrong.
I quoted the post in its entirety.
I got that quote from Usenet, from the post I put up on 8/4 at 15:33
Z.
Did you read my quote?
Your argument is based on false premises.
I conclude that you are just being argumentative.
Except my first one, which for some reason you missed or suppressed.
I count 17 about to become 18 with this here post right here.
You should get your ISP straightened out.
Your count is waaaaay off.
ASre you sure you
What?
How generous of you to allow, but it propagated just fine.
Then you are deliberately counting the wrong group.
Given that the OP posted with a followup to clj.help,
ClassCastException was being just a tad disingenuous in discounting my
reply simply because it showed up exactly where the OP wanted.
This does illustrate the relevance of my comment about cross-posting.
People don't even know what was said in the conversation because of it,
for pity's sake.
Obviously not, or I'd have read it.
If, that is, you even posted it at all, for which (again) we have only
your word.
Alan said:What's a bounder?
Lew said:http://en.wiktionary.org/wiki/bounder
http://www.merriam-webster.com/dictionary/bounder
http://dictionary.reference.com/browse/bounder
or choose your own favorite dictionary.
Wrong.
thread/c8afff58b21f093c#>You deliberately clipped the line from my post just after "it
propagated just fine":
which shows that you are a troll and a bounder.
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