To reassure you Skip, OFBiz is more mature now, there should be less changes 
the next time you will do it.
Except, if we want to take advantage of Java 8 : 
http://www.techempower.com/blog/2013/03/26/everything-about-java-8/
Of course, updating more often should help...

Jacques

Adrian Crum wrote:
> Skip,
> 
> It's good to hear you finally got everything working okay.
> 
> I'm sure your frustration has influenced your opinions about some of the
> changes in OFBiz.
> 
> A lot of time has passed since version 9, and the changes you
> encountered were discussed in depth, old APIs were deprecated, and
> eventually obsolete stuff was removed. We don't have the resources to
> keep deprecated code in the project forever. I hope you understand that.
> 
> From my perspective, refactorings are not pointless - each one had a
> very good reason behind it. I don't know of any committer who has enough
> free time to develop, test, and commit pointless changes. So, if there
> is a specific change that has you puzzled, I would encourage you to
> discuss it on the dev mailing list.
> 
> Adrian Crum
> Sandglass Software
> www.sandglass-software.com
> 
> On 9/13/2013 1:17 AM, Skip wrote:
>> 
>> -----Original Message-----
>> From: Skip [mailto:s...@thedevers.org]
>> Sent: Friday, September 13, 2013 1:16 AM
>> To: Pierre Smits
>> Subject: RE: Mirgration to OFBiz newer version
>> 
>> 
>> Pierre
>> 
>> As I write this, it is it is just past midnight here and I am importing data
>> into the new system from the old for what I hope will be the final time.
>> This is a large data set and takes some 9 hours to get finished.  I have
>> been working on this for two months now and just today feel confident enough
>> to put it into production.
>> 
>> I have tried to share some of the pitfalls I ran into, but let me recap some
>> of the major ones.  But be sure to check the message board history for much
>> more.
>> 
>> 1.  There is a major change in the way passwords are computed.  Because we
>> have external users that we cannot force to change their passwords en-mass,
>> I put the password computations back the way they were so they accept both
>> new and old passwords.  Check out HashCrypt.getDigestHash(), and modified
>> checkPassword() in LoginServices to call a new getUnsaltedPasswordHash()
>> which for the most part, just calls HashCrypt.getDigestHash() if the
>> comparePassword() failed.  Note that I commented out all this code in
>> HashCrypt and pasted in the stuff from the same file in 9.x code because it
>> will produce a different hash.
>> 
>> 2.  When importing data from your old system, make sure you set
>> entity-eca-enabled="false" in your entityengine.xml for your delegators
>> before you begin importing and then remove it after.  Otherwise, you end up
>> with a lot of crap.
>> 
>> 3.  There are lots of new ecas that did not exist before.  This caused me no
>> end of headaches.  Make sure you compare your old xxxseca.xml with the new
>> and comment out those you do not want.
>> 
>> 4.  Date formats are now yyyy-mm-dd instead of localized.  Not a big deal,
>> but I got lots of complaints during beta testing.  Still have not resolved
>> this because there is a lot of javascript code to change to put it back the
>> way it was.
>> 
>> 5.  Lots of changes in widgets xls definitions.  After you get it fired up,
>> visit all your custom screens and check the console.log.  It will have tons
>> of errors that need cleaned up.
>> 
>> 6.  Any custom java code that you have that used Double database fields now
>> must use BigDecimal for most of it.  Ditto for .bsh scripts.
>> 
>> 7.  The bsh interpreter that ships with 12.x doesnt work.  Restore the old
>> version unless you are going to rewrite all you bsh scripts into .groovy.  I
>> am using bsh-2.04b.jar but this puts a bunch of "Experimental..." crap in
>> the log.  But, at least it works until I get that figured out.
>> 
>> 8.  To import your data do an export all, delete JobSandbox.xml, Comm*.xml,
>> ProductKeyword.xml, RuntimeData.xml, UserLoginHistory.xml and Workflow*.xml.
>> Then, on a clean database, do ant load-seed, then import your exported
>> files, being sure to turn off entity-eca-enabled.
>> 
>> 8.1.  Several table structions have been modified.  ProductAverateCost now
>> has a new productAverateCostTypeId (set to SIMPLE_AVG_COST), that has to be
>> added after the export to make it import OK.  None of the other additions
>> caused import problems.
>> 
>> 9.  Things are about 20% slower.
>> 
>> 10.  I did my best to keep my ofbiz code untouched, but still, have a couple
>> hundred modifitions in the framework and application trees (mostly in
>> applications related to invoices and billing accounts).
>> 
>> 11.  Because I did not want to migrate all my applications over to the new
>> MacroScreenViewHandler, in each of my custom controller.xml, I made a
>> macroScreen handler and left screen as ScreenWidgetViewHandler.  Then, as I
>> changed the ftl to use it, I could just change screen to macroScreen.  The
>> new MacroScreenViewHandler is completely integrated with jQuery, you can
>> create some really killer end user screens now with very little code.  Its
>> really easy to modify the css to get it to look just like you like.  The ftl
>> code behind MacroScreenViewHandler needs some work though to make it the
>> best it can be.
>> 
>> I do not need multi-tenat.  As such, if I had to do this over again, I would
>> just have replaced the widget code with the new.  That is all rather clever.
>> The rest of the changes are mostly useless in my opinion.  Much needless
>> crap and pointless refactorings in my view.  There is a big rewrite to the
>> entity engine code and all your custom java files will have to be changed.
>> Deletator instead of GenericDelegator, EntityCondition.makeCondition instead
>> of new EntityExpr, and lots stuff like that.  I had about a thousand java
>> files that I had to change and it is mostly search and replace, but a pain
>> in the butt for no value.  Even though there is mostly no difference, they
>> didn't just deprecate, the removed functions all together.  I added lots of
>> the deprecated functions back in to make my life easier.
>> 
>> Hope this helps
>> 
>> Skip
>> 
>> 
>> 
>> 
>>    -----Original Message-----
>>    From: Pierre Smits [mailto:pierre.sm...@gmail.com]
>>    Sent: Friday, September 13, 2013 12:09 AM
>>    To: s...@thedevers.org
>>    Subject: Mirgration to OFBiz newer version
>> 
>> 
>>    Hi Skip,
>> 
>> 
>>    I trust your migration project is going well.
>> 
>> 
>>    Currently I am facing the same situation as I need to migrate several
>> customers to our new multi-tenant environment.
>>    As I am in the planning phase, I was wondering if your would be willing to
>> share your best practices and do's and don'ts with me regarding the data
>> migration.
>> 
>> 
>>    With kind regards,
>> 
>> 
>>    Pierre Smits
>> 
>> 
>>    ORRTIZ.COM
>>    Services & Solutions for Cloud-
>>    Based Manufacturing, Professional
>>    Services and Retail & Trade
>>    http://www.orrtiz.com

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