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From Aaron Mulder <ammul...@alumni.princeton.edu>
Subject Re: problem with Geronimo-1.0
Date Wed, 04 Jan 2006 15:11:15 GMT
Rakesh,

It would help to get the information I asked for: "a more complete
chunk of your code, plus all the pertinent output and a full stack
trace.  Also, please mention what you've deployed into the server (if
anything) other than this application."  Again, it's impossible to
debug your problem without knowing what your code is doing.

Let me try to explain in more detail.  Here's the code you posted:

Set gbeanNames = kernel.listGBeans(gbQuery);
for (Iterator i = gbeanNames.iterator(); i.hasNext();) {
      ObjectName gbeanName = (ObjectName) i.next();
      System.out.println(gbeanName1);
}
TransactionManager tm = (TransactionManager)
kernel.getProxyManager().createProxy(gbeanName,
TransactionManager.class);

Now, the gbeanName variable in the for loop is declared in the for
loop, so it's not the same as the gbeanName variable in the
createProxy call.  Further, the println in the loop is using a
variable called gbeanName1.  So in these three lines, there are three
different variables being used.  Of them, we only see where gbeanName
in the loop is assigned, but it's never used.  We need to know (and
you need to find out) where the values gbeanName1 and gbeanName (the
one outside of the loop) are assigned.  Note that YOU ARE NOT USING
THE RESULT OF THE listGBeans CALL FOR ANYTHING (except to control the
number of times you print gbeanName1) in the code you supplied, so
when people suggest that listGBeans is broken that conclusion is not
supported by the code you posted.  That's why I'm asking you to post
more, and hunt down how those variables are being assigned.

On 1/4/06, Ranjan, Rakesh (Cognizant) <Rakesh.Ranjan@cognizant.com> wrote:
> Hi,
>
>  Sorry Aaron about confidential information footers. But i cann't do anything because
it is generated by the mail server.

Presumably your company doesn't want you sending information to the
world from your company e-mail account if they attach that to every
message.  I sent you an invitation to use GMail for your personal
correspondance.  :)

Thanks,
    Aaron

> The value contained in the variable 'gbeanName' is :
>
>
>
> geronimo.server:J2EEApplication=null,J2EEModule=org/apache/geronimo/Server,J2EEServer=geronimo,j2eeType=TransactionManager,
>
> name=TransactionManaer
>
>
>  I have tried the query using the full object name:
>
>
>
> geronimo.server:J2EEApplication=null,J2EEModule=geronimo/j2ee-server/1.0/car,J2EEServer=geronimo,
j2eeType=TransactionManager, name=TransactionManager
>
>
>
> Its working correctly. I am able to get the TransactionManager instance using the full
GBean name.
>
> But  i would like to know why this thing is not working with kernel.listGBeans(). Is
it a bug in Geronimo-1.0 ?
>
>  Rakesh Ranjan
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Re: problem with Geronimo-1.0
>
> Grr, more confidential information footers.  Please don't do that to
>  public mailing lists!  If your information is confidential, don't send
>  it to the world, and if it's not confidential, please don't assault us
>  with the legalese!
>
>  Anyway, now that that's off my chest, Geronimo cannot (well,
>  definitely *should* not) produce an incorrect ObjectName out of thin
>  air, so you need to figure out where you're getting the ObjectName
>  containing org/apache/geronimo/Server from.  In the code snippet you
>  showed, you do a lookup and print all the results, but then you try to
>  create a proxy using a variable called gbeanName (which I suspect is
>  what's failing) and you never showed us what that variable holds and
>  where you got the value in that variable.  Maybe it's hardcoded or in
>  a config file or something?  You also didn't should the output of your
>  program where it prints all the matching transaction manager names.
>  You also didn't give a proper stack trace.  So it's real hard to
>  troubleshoot from here.  You might want to run it under a debugger and
>  figure out where the o/a/g/Server is coming from.
>
>  If none of this helps you figure out what's going on, please post a
>  more complete chunk of your code, plus all the pertinent output and a
>  full stack trace.  Also, please mention what you've deployed into the
>  server (if anything) other than this application.
>
>  Thanks,
>      Aaron
>
>  On 1/4/06, Ranjan, Rakesh (Cognizant) <Rakesh.Ranjan@...> wrote:
>  >
>  >
>  >
>  > Hi friends,
>  >
>  > I am trying to get a reference to Geronimo TransactionManager. For this, I have
done the following things : -
>  >
>  > a)       Getting a reference to the kernel using the KernelRegistry class.
>  >
>  > b)       Then searching the TransactionManager GBean using a pattern.
>  >
>  > c)       Finally getting the TransactionManager reference using the searched Gbean.
>  >
>  >
>  >
>  >
>  >
>  > Here the code snippet :
>  >
>  >
>  >
>  > Kernel kernel=KernelRegistry.getSingleKernel();
>  >
>  > ObjectName gbQuery = JMXUtil.getObjectName("*:j2eeType=TransactionManager,*");
>  >
>  > Set gbeanNames = kernel.listGBeans(gbQuery);
>  >
>  > for (Iterator i = gbeanNames.iterator(); i.hasNext();) {
>  >
>  >       ObjectName gbeanName = (ObjectName) i.next();
>  >
>  >       System.out.println(gbeanName1);
>  >
>  > }
>  >
>  > TransactionManager tm = (TransactionManager) kernel.getProxyManager().createProxy(gbeanName,
ransactionManager.class);
>  >
>  >
>  >
>  >
>  >
>  >
>  >
>  > When I am using this with the Geronimo-1.0-M5, this is working correctly. But with
Geronimo-1.0 , this is not working correctly.
>  >
>  >
>  >
>  > With Geronimo-1.0, I am getting the following Exception :
>  >
>  >
>  >
>  > java.lang.IllegalArgumentException:
>  >
>  >  Could not get GBeanInfo for target object:
>  >
>  > geronimo.server:J2EEApplication=null,J2EEModule=org/apache/geronimo/Server,J2EEServer=geronimo,j2eeType=TransactionManager,name=TransactionManager
>  >
>  >
>  >
>  > I think kernel.listGBeans() is not working correctly in case of Geronimo-1.0. According
to the above code, the GBean is
>  >
>  > geronimo.server:J2EEApplication=null,J2EEModule=org/apache/geronimo/Server,J2EEServer=geronimo,j2eeType=TransactionManager,name=TransactionManager
>  >
>  >
>  >
>  > But as much I know, it should be
>  >
>  >
>  >
>  > geronimo.server:J2EEApplication=null,J2EEModule=geronimo/j2ee-server/1.0/car,J2EEServer=geronimo,j2eeType=TransactionManager,name=TransactionManager
>  >
>  >
>  >
>  > Can anybody please help me whether there is any fault with Geronimo-1.0 or something
else.
>  >
>  >
>  >
>  >
>  >
>  > Regards,
>  >
>  > Rakesh Ranjan
>  >
>  >
>  > This e-mail and any files transmitted with it are for the sole use of the intended
recipient(s) and may contain confidential and privileged information.
>  >  If you are not the intended recipient, please contact the sender by reply e-mail
and destroy all copies of the original message.
>  >  Any unauthorized review, use, disclosure, dissemination, forwarding, printing
or copying of this email or any action taken in reliance on this e-mail is strictly
>  >  prohibited and may be unlawful.
>  >
>  >    Visit us at http://www.cognizant.com
>  >
>
>
>
> This e-mail and any files transmitted with it are for the sole use of the intended recipient(s)
and may contain confidential and privileged information.
>  If you are not the intended recipient, please contact the sender by reply e-mail and
destroy all copies of the original message.
>  Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying
of this email or any action taken in reliance on this e-mail is strictly
>  prohibited and may be unlawful.
>
>    Visit us at http://www.cognizant.com
>

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