[news.eclipse.platform.rcp] Problem exporting product

[craquerpro@xxxxxxxx (David Perez)]

Hi,

My RCP app is working.  :-)
Now is time to export it and try it.
But ....

1) One exporting it, eclipse complains that there are some errors.
  I look at logs.zip and all of them are warning except some unresolved 
classes from unused classes in log4j.jar:

   429. ERROR in 
C:\develop\com.tools.logging\src.log4j\org\apache\log4j\net\SMTPAppender.java 
(at line 32)
	import javax.mail.Authenticator;

  I think these errors aren't fatal.

2) When I launch my app, some messages with non-English chars appear bad.  
It seems an enconding problem (interpreting UTF-8 as ISO-8859-1).  When 
launching directly from Eclipse, I don't have this issue.

3) Some plugins like 
org.mozilla.xulrunner.win32.win32.x86_1.8.1.3-20080128 are originally 
unpacked (not in .jar format, but as a folder).  It contains binaries.  It 
doesn't work if packed.
How can I prevent packing?

4) Worst of all, when opening some views I get ClassNotFoundException.
By looking the .log of my workspace, I can see this:

java.sql.SQLException: java.lang.ClassNotFoundException: 

Isn't SQLException bundled with the JRE? How can this fail?
Why does the exported product behave differently to the workspace product?

Thanks for any tip or ReCiPe.