- Info from the NetBeans About box doesn't say anything about 64-
bit mode
(admittedly a weak point ... who says it has to? Or maybe it does
and I'm
not understanding?):
Product Version: NetBeans IDE 6.1 (Build 200805300101)
Java: 1.5.0_16; Java HotSpot(TM) Client VM 1.5.0_16-133
System: Mac OS X version 10.5.5 running on i386; MacRoman;
en_US (nb)
Userdir: /Users/gnunes/.netbeans/6.1
If that's the info from the Terminal-launched NetBeans, then it's
running in 32-bit mode. I infer this from the "running on i386",
which is the 32-bit Intel architecture. If it were running 64-bit,
it would be "running on x86_64".
I'm guessing that it's not the info from the Finder-launched
NetBeans, because it apparently crashes before it can ever get to the
point of offering you an About box.
I drew the correlation between crashing and 64-bit simply by reading
the crash-log you linked to:
Go to that page and search for the text "X86". It should be more or
less apparent that the crashed program is running as 64-bit:
1. The code type is X86-64.
2. The KERN_INVALID_ADDRESS value is a 64-bit address.
3. The thread state is 64-bit.
How it got to be running as 64-bit, I couldn't begin to guess. You'd
have to look at the shell script that NetBeans seems to have as its
primary CFBundleExecutable. I say "seems to have" because I'm
inferring this from a comment in the bug-report URL that says "The
start up script inside Netbeans.app is a .sh script ..."
Could some native part of NetBeans (and IDEA) be executing 64-bit
code? Or
perhaps Java runs in 64-bit unless told otherwise. Or maybe some other
mechanism is invoking 64-bit mode?
The command-line 'java' command will be 32-bit (AFAIK) unless told
otherwise with the -d64 command-line option. You can also explicitly
run 32-bit with -d32. See 'man java'. (The default might be
different after the most recent Java Update from Apple has been
installed. Apparently a number of options for choosing the default
Java are different.)
A given process is either 32-bit or 64-bit: it can't switch between
modes. However, a 32-bit process can start a 64-bit process, or vice
versa. So in the general sense, yes, it's possible that some part is
executing 64-bit code while another part is executing 32-bit code.
You'll have to ask a more specific question, and you'd probably have
to ask it of the product provider (Sun or Jetbrains, as appropriate).
Some bundled apps on Leopard give you the choice, using Finder's Get
Info window, to run the app as 64-bit or 32-bit. Do a Get Info on /
Applications/Chess.app and you'll see a checkbox for "Open in 32-bit
mode". If an app has only 64-bit or only 32-bit code, the checkbox
will be absent. For example, look at TextEdit.app.
I did these Get Info's on OS version 10.5.2. It's possible that
later updates have more 64-bit-capable apps.
Anyway, do a Get Info on NetBeans.app and see what's there. If it
gives you a 32-bit option, check it. If it doesn't, it could still
be running as 64-bit (or 32-bit) based on the contents of its startup
shell script. You'll have to dig into NB.app to find out. It's
probably near line 466, if the crash message is to be believed.
-- GG
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