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From Shawn Heisey <>
Subject Re: error 0 issue
Date Wed, 26 Jun 2019 18:58:49 GMT
On 6/26/2019 11:18 AM, Mark Thomas wrote:
> On 26/06/2019 18:10, Kumar R wrote:
>> Hi Team,
>> Is it possible to go for higher version of JDK(64 bit) and Tomcat(64bit) on
>> 32 bit window 2003 architecture.
> No.

A tiny bit more detail:

64-bit software requires a 64-bit operating system.  A 64-bit operating 
system requires a 64-bit CPU.

You're running 32-bit Windows, so you can't run any 64-bit software, 
even if the hardware is actually 64-bit.

32-bit programs on Windows, including Java, are limited to addressing 
2GB of memory.  Which typically means that if you make the heap larger 
than about 1.5 GB on a 32-bit system, Java's probably going to either 
crash or not work correctly.  This can be a serious limitation with 
modern software.

Intel hasn't mass-produced 32-bit server-class CPUs since 2005, and 
desktop-class CPUs since 2006.  Other CPU manufacturers like AMD 
probably did something similar around the same timeframe.  Which means 
that if your hardware is at all recent, it probably has a 64-bit CPU.


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