JEP 141: Increase the Client VM's Default Heap Size

Jon Masamitsu jon.masamitsu at
Wed Feb 22 07:38:26 PST 2012

On 2/22/2012 4:28 AM, Michael Bien wrote:
>  On 02/22/2012 12:48 AM, mark.reinhold at wrote:
>> Posted:
>> - Mark
> additional risks:
>  - JVM may not be able to start

Specifically, the JVM tries to reserve enough memory at start up
for the heap and fails to initialize if it cannot?

Will add it.

>  - could contribute to the false impression that java requires a lot 
> of memory to run (JVMs usually don't like to give memory back to the 
> OS once its in use)

Is this an impression the user would get because the JVM would not start 
up as you
note above?   The JVM does not necessarily use all the memory it reserves.


> best regards,
> michael

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