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JVM Terminates immediately under Mac OS X w/ J2SE 6.0 [message #5877]

Wed, 29 October 2008 00:53

Eclipse User

I tried MAT under J2SE 5.0 on Mac OS X 10.5, but when I switch the current
JDK to J2SE 6.0, it no longer functions. Upon launch it will terminate
immediately with the Message "JVM Terminated ... exit code = -1".

Could someone provide any advice to resolve this or possibly tell me how I
can configure it to refer to a Java installation (just so I can get it
working again).

Thanks!

Re: JVM Terminates immediately under Mac OS X w/ J2SE 6.0 [message #5895 is a reply to message #5877]

Wed, 29 October 2008 05:18

Eclipse User

I found this in the Eclipse documentation:

> SWT cannot be used with OS X JRE version 1.6 (Mac OSX only)

> OS X JRE version 1.6 assumes that pointers have a size of 64 bits,
> but SWT's Carbon port only uses 32-bit pointers, so SWT and Eclipse
> cannot be used with OS X JRE version 1.6. The workaround is to use
> an earlier supported version of the OS X JRE.

To use an earlier version, check out the Mac OS X chapter here:
http://help.eclipse.org/ganymede/topic/org.eclipse.platform. doc.user/tasks/running_eclipse.htm

E.g. add a "-vm path/to/vm/bin" to the Contents/MacOS/MemoryAnalyzer.ini
file.

Let me know if this helps.

Andreas.

Re: JVM Terminates immediately under Mac OS X w/ J2SE 6.0 [message #5970 is a reply to message #5895]

Wed, 29 October 2008 14:28

Eclipse User

I can't find a Content/MacOS directory *or* a MemoryAnalyzer.ini file in
the MAT folder.

Should I create one? If so: where?

Re: JVM Terminates immediately under Mac OS X w/ J2SE 6.0 [message #6374 is a reply to message #5970]

Thu, 30 October 2008 04:00

Eclipse User

> I can't find a Content/MacOS directory *or* a MemoryAnalyzer.ini file in
> the MAT folder.

Applications under MacOS are packaged into a folder. When using Finder,
right-click on MemoryAnalyzer and select "Show Package Content". Then you
should see the Content/MacOS directory.

Re: JVM Terminates immediately under Mac OS X w/ J2SE 6.0 [message #6392 is a reply to message #6374]

Thu, 30 October 2008 04:44

Eclipse User

Ahh, that makes sense (as you probably noticed I am new to developing on
MacOS).

So I modified MemoryAnalyzer.ini to match the following:

-vmargs
-Xmx1024m
-Dorg.eclipse.swt.internal.carbon.smallFonts
-XstartOnFirstThread
-vm /System/Library/Frameworks/JavaVM.framework/Versions/1.5

yet, when I launch the app, I still see the same error *except* I notice
that it shows the -vm argument I added (in a dump of all options) but
there appears to be some other component that is pointing to the default
VM location (but I could be interpreting this wrong).

At any rate, is it possible there is another initialization file I need to
change as well?

thanks

Re: JVM Terminates immediately under Mac OS X w/ J2SE 6.0 [message #6449 is a reply to message #6392]

Thu, 30 October 2008 05:28

Eclipse User

Hi Ryan,

I don't develop on Mac either and my MacBook sits at home right now...

> -vmargs
> -Xmx1024m
> -Dorg.eclipse.swt.internal.carbon.smallFonts
> -XstartOnFirstThread
> -vm /System/Library/Frameworks/JavaVM.framework/Versions/1.5

First, try putting it on two lines:

-vm
/System/Library/Frameworks/JavaVM.framework/Versions/1.5

Then, then try adapting the path. At least on Windows, it needs to point
to the directory which contains the java.exe file. E.g. it could be
something like .../Versions/1.5/bin or .../Versions/1.5/jre/bin or similar.

Andreas.

Re: JVM Terminates immediately under Mac OS X w/ J2SE 6.0 [message #6504 is a reply to message #6449]

Thu, 30 October 2008 14:28

Eclipse User

I am actually really liking the MacOS. What's frustrating is I am a big
fan of Eclipse MAT, but it is the only program I've been having trouble
with on my new Mac thus far.

> -vm
> /System/Library/Frameworks/JavaVM.framework/Versions/1.5

Just tried that, didn't appear to have an effect.

> Then, then try adapting the path. At least on Windows, it needs to point
> to the directory which contains the java.exe file. E.g. it could be
> something like .../Versions/1.5/bin or .../Versions/1.5/jre/bin or similar.

Tried this as well. No luck. The message that appears when I attempt to
run MAT is curious in that it shows the -vm ... option that I've added but
it also shows the -vm option again with the default JVM path. This is
what leads me to believe that the app has multiple files that contain this
path.

I'm presently not using any Windows emulation but it would be seriously
lame to be forced to given this is supposed to be a Java application.

Re: JVM Terminates immediately under Mac OS X w/ J2SE 6.0 [message #6522 is a reply to message #6504]

Thu, 30 October 2008 15:17

Eclipse User

Aha! I have it working now.

Take a look at:
http://stackoverflow.com/questions/245803/jvm-terminates-whe n-launching-eclipse-mat-on-mac-os-with-j2se-60

But thanks for telling about how Mac OS application are actually packages.
Not knowing this kept me from understanding the solution presented to me
in the thread that link above refers to.

Re: JVM Terminates immediately under Mac OS X w/ J2SE 6.0 [message #6558 is a reply to message #6522]

Fri, 31 October 2008 03:46

Eclipse User

> Take a look at:
>
http://stackoverflow.com/questions/245803/jvm-terminates-whe n-launching-eclipse-mat-on-mac-os-with-j2se-60

Thanks for solving this! On Windows, it is sufficient to add the VM
information to the MemoryAnalyzer.ini. But on Mac OS X it is not. Okay.

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