RE: [libreoffice-users] RE: Libreoffice and Java

Yes, that is correct. Would still be broken if you don't also clean up the javasettings .xml 
configuration file.
 
Additionally, for folks on a 64-bit build of Windows,  if you install both a 32-bit and a 64-bit 
JRE, you need to watch which JRE gets called with LibreOffice.  Oracle installers place copies of 
latest installed executable into the C:\Windows\system32 (the 64-bit executables), and also in 
C:\Windows\SysWOW64 (for the 32-bit executables).
 
They are copied from the respective  installation directories of the JREs, but with a default 
installation these executables will be "found" before any other instance referred by the PATH 
environment, so they are the JREs used by default--and that can cause problems if not expected (as 
can issues with location of a MS C++ runtime not being present with the Java virtual machine 
libraries).  
 
To convince yourself, leave the C:\Windows copies intact and run a Command Window, and then execute 
"java -version", if you have the 64-bit JRE installed and you will see the version labeled as 
64-bit build--not the 32-bit. And that also seems to causes problems for LibreoOffice which on 
Windows remains 32-bit.
 
To precisely control which JRE is used, you have to remove the executables from the system32 and 
SysWOW64 directories, and then establish a specific location on the PATH for them. Can be anywhere 
in the PATH environment variable, but for security after the Windows OS components. Also by 
convention you can create a JAVA_HOME environment variable and use a "%JAVA_HOME%\bin" reference in 
the PATH.  Very useful (and the norm in Linux) in that you can programmatically change the 
JAVA_HOME variable when you need a different JRE (either the version or use of a 64-bit build).
 
Stuart

________________________________

From: Tanstaafl [mailto:tanstaafl@libertytrek.org]
Sent: Thu 9/6/2012 10:21 AM
To: users@global.libreoffice.org
Subject: Re: [libreoffice-users] RE: Libreoffice and Java



Thanks Stuart...

So, if you (like I always do) first uninstall JRE 1.6, then install 1.7
(32bit of course), will it still be broken?




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