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Re: memory allocation for

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Brandon McCombs wrote:
> hello,
>
> My application makes multiple JNDI search calls to a directory server.
> The search method returns a NamingEnumeration of SearchResults and I run
> through a while loop that converts the enumeration to a Vector of
> SearchResults. At another time I process the Vector to add the
> SearchResults to a ListModel for viewing their properties.
>
> My application takes up a lot of memory after running that search
> operation a handful of times. It seems that the majority of the memory
> allocation comes from the hasMoreElements() method of the enumeration
> that I call within the while() mentioned above.  I don't see any way of
> not calling that method since I need it to grab the search results. The
> question I have is why would the JVM use so much space for that method
> and is there anything I can do to reclaim the memory?  JProfiler says
> that after a handful of search() executions there are over a million
> allocations of hasMoreElements() that take up 50 megs. Jprofiler shows
> garbage collections are occurring but since a method and not an Object
> is taking up the memory I don't know how to fix this problem.
>
> As a side note, if it was possible to properly cancel JNDI search
> methods (from the InitialLdapContext class) then I wouldn't have such a
> problem but once those searches start they can't be canceled from what I
> can gather, despite utilizing threads.
>
> thanks
> Brandon

Method calls don't explicitly allocate memory.  I think you're
misinterpretting your profiler report.

Also, why not use ArrayList instead of Vector?  Vector is outdated.

Other then that, I don't have any advice to give you, sorry.

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memory allocation for a m "Brandon McCombs" <brandon.mccombs@THRWHITE.remove-dii-this> - 2011-04-27 15:28 +0000
  Re: memory allocation for "Daniel Pitts" <daniel.pitts@THRWHITE.remove-dii-this> - 2011-04-27 15:28 +0000
    Re: memory allocation for "Brandon McCombs" <brandon.mccombs@THRWHITE.remove-dii-this> - 2011-04-27 15:28 +0000
      Re: memory allocation for "Brandon McCombs" <brandon.mccombs@THRWHITE.remove-dii-this> - 2011-04-27 15:28 +0000
  Re: memory allocation for "Nigel Wade" <nigel.wade@THRWHITE.remove-dii-this> - 2011-04-27 15:28 +0000
    Re: memory allocation for "Brandon McCombs" <brandon.mccombs@THRWHITE.remove-dii-this> - 2011-04-27 15:28 +0000

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