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From Todd Grigsby <>
Subject Re: MySQL + JDBC
Date Wed, 16 Dec 2009 05:35:58 GMT

Yes.  Running Tomcat 6 as a Windows service...    Ok, this is 
interesting.  On a whim, I ran tomcat6w, and when it came up, it appears 
to using the "C:\Program Files (x86)\Java\jre6\bin\client\jvm.dll", 
which implies to me that the JVM it's attempting to use is the 32-bit 

High five, Mr. Kobly.

I searched around and, under C:\Program Files, I found a couple of 
jvm.dll's.  I tried pointing Tomcat to each of them, but the service 
died with an error code of #1.  Not sure what that is, but it occurs to 
me that I might fix this by simply reinstalling Tomcat and, when it asks 
for a JRE, I'll point it to the other JVM DLLs and see what it does.


Patrick J Kobly wrote:
> Running the binary dist of Tomcat?
> tomcat.exe / tomcatw.exe
> PK
> Todd Grigsby wrote:
>> Patrick J Kobly wrote:
>>> Todd Grigsby wrote:
>>>> Other native apps.  The Java apps are being migrated from a 32-bit 
>>>> environment (WinXP and Java 32-bit + Struts 1.1), and they worked 
>>>> there.  I don't want to point to any one thing, since every part of 
>>>> the equation is a newer version of what was there before, but at 
>>>> this point the only things that can't use the connections are the 
>>>> web apps.  
>>> But the web apps are the only things that use Java.  You don't have 
>>> standalone Java apps or Java webapps built on a different framework 
>>> than Struts...  The issue is almost certainly a 32-bit JRE trying to 
>>> access a 64-bit ODBC driver.
>> I'll buy that, but I'm confused -- I installed 64-bit Java, and when 
>> I open a command prompt and do "java -version", it identifies itself as:
>>    Java(TM) SE Runtime Environment (build 1.6.0_16-b01)
>>    Java HotSpot(TM) 64-Bit Server VM (build 14.2-b01, mixed mode)
>> But I'll see if I have anything on my system that is getting loaded 
>> that's 32-bit.
>> Thanks!
>> TG
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