FULL PRODUCT VERSION :
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Linux q 3.13.0-57-generic #95~precise1-Ubuntu SMP Mon Jun 22 09:43:07 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
Our costumers in the italian part of Switzerland complained about the date format and we have to agree. It's wrong:

Java implementation:

"EEEE, d. MMMM yyyy", // full date pattern
"d. MMMM yyyy", // long date pattern

Correct would be:

"EEEE, d MMMM yyyy", // full date pattern
"d MMMM yyyy", // long date pattern

Please also see the following implementation documentation, correctly conforming SN ISO 8601:2005-08:

http://www-01.ibm.com/support/knowledgecenter/SSS28S_8.1.0/XFDL/i_xfdl_r_formats_it_CH.dita

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Try following code:
DateFormat.getDateInstance(DateFormat.LONG, Locale.forLanguageTag("it-ch")).format(new Date(0));
DateFormat.getDateInstance(DateFormat.FULL, Locale.forLanguageTag("it-ch")).format(new Date(0));

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Should return "1 gennaio 1970" for LONG and "giovedì, 1 gennaio 1970" for FULL.
ACTUAL -
Actually returns "1 gennaio 1970" for LONG and "giovedì, 1. gennaio 1970" for FULL.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
DateFormat.getDateInstance(DateFormat.LONG, Locale.forLanguageTag("it-ch")).format(new Date(0));
DateFormat.getDateInstance(DateFormat.FULL, Locale.forLanguageTag("it-ch")).format(new Date(0));
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Implementation of mechanism to handle date formatting of italian part of Switzerland separately.