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No. You've misunderstood the whole Java JRE and BASE HSQLDB performance issue. Problem is not and 
never was with the Sun/Oracle Java JRE. The past problem with LibO and OOo HSQLDB performance was 
with process thread creation in the LibO/OOo JDBC interface.

The dev patch (by Stephen Bergmann) for Bug 35023 "Base functions extremely slowly with Java 
1.6.0_20 and >1.6.0_24" has been applied to the 3.5.0 core, and may make it into 3.4.6; but use of 
a 1.6u21 JRE was only a work around for LibO's BASE native HSQLDB 1.8 performance issues as that 
version of the JRE handled needed threads differently. 

Use of Java JRE 1.7 (with Oracle Corp ownership strings) was back ported to 3.4.5--so no issue 
there. Look for issues with spell check elsewhere.


-----Original Message-----
From: Tom Davies [] 
Sent: Friday, February 17, 2012 9:05 AM
Subject: RE: [libreoffice-users] Spell check for 3.4.5 on Win7 not working

Hi :)
I know LibreOffice 3.5.0 can use java 1.7 but i doubt that has been back-ported to all other 
releases that people are using out there.  Java is going to be a problem until we can get rid of 
any dependence on it completely.  It's not our devs fault that Oracle can't write something that 
isn't broken and vulnerable before Oracle release it. Regards from Tom :)

--- On Fri, 17/2/12, V Stuart Foote <> wrote:

From: V Stuart Foote <>
Subject: RE: [libreoffice-users] Spell check for 3.4.5 on Win7 not working
Date: Friday, 17 February, 2012, 1:47


It is buried down in the Dev list, but the LibO BASE JDBC performance issues with the Java JRE are 
fixed by changes to the JDBC driver to reduce JNI Attach/DetachThread cycles, the 35023 bug 
( ) is closed.

We should no longer be pusing the JRE 1.6u21--current JRE 1.6u31 or 1.7u3 are fully acceptable.

Look elseware for the issue with spell check.


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