diff --git a/jdk/src/share/classes/sun/text/resources/pt/FormatData_pt.java b/jdk/src/share/classes/sun/text/resources/pt/FormatData_pt.java
index ec36c0c7045..32e6c1e14b2 100644
--- a/jdk/src/share/classes/sun/text/resources/pt/FormatData_pt.java
+++ b/jdk/src/share/classes/sun/text/resources/pt/FormatData_pt.java
@@ -103,18 +103,18 @@ public class FormatData_pt extends ParallelListResourceBundle {
             },
             { "MonthAbbreviations",
                 new String[] {
-                    "Jan", // abb january
-                    "Fev", // abb february
-                    "Mar", // abb march
-                    "Abr", // abb april
-                    "Mai", // abb may
-                    "Jun", // abb june
-                    "Jul", // abb july
-                    "Ago", // abb august
-                    "Set", // abb september
-                    "Out", // abb october
-                    "Nov", // abb november
-                    "Dez", // abb december
+                    "jan", // abb january
+                    "fev", // abb february
+                    "mar", // abb march
+                    "abr", // abb april
+                    "mai", // abb may
+                    "jun", // abb june
+                    "jul", // abb july
+                    "ago", // abb august
+                    "set", // abb september
+                    "out", // abb october
+                    "nov", // abb november
+                    "dez", // abb december
                     "" // abb month 13 if applicable
                 }
             },
diff --git a/jdk/test/sun/text/resources/LocaleData b/jdk/test/sun/text/resources/LocaleData
index 7d95a57d7ba..91d4c46b854 100644
--- a/jdk/test/sun/text/resources/LocaleData
+++ b/jdk/test/sun/text/resources/LocaleData
@@ -28,9 +28,6 @@ FormatData/pt_BR/DateTimePatterns/0={1} {0}
 FormatData/pt_BR/NumberElements/0=,
 FormatData/pt_BR/NumberElements/1=.
 FormatData/pt_BR/NumberElements/2=;
-FormatData/pt_BR/MonthAbbreviations/0=Jan
-FormatData/pt_BR/MonthAbbreviations/1=Fev
-FormatData/pt_BR/MonthAbbreviations/2=Mar
 FormatData/pt_BR/DayAbbreviations/0=Dom
 FormatData/pt_BR/DayAbbreviations/1=Seg
 FormatData/pt_BR/DayAbbreviations/2=Ter
@@ -7667,3 +7664,18 @@ LocaleNames/sq/sq=shqip
 # bug 7074882
 FormatData/mt/MonthNames/7=Awwissu
 FormatData/mt/MonthAbbreviations/7=Aww
+
+# bug 7040556
+FormatData/pt/MonthAbbreviations/0=jan
+FormatData/pt/MonthAbbreviations/1=fev
+FormatData/pt/MonthAbbreviations/2=mar
+FormatData/pt/MonthAbbreviations/3=abr
+FormatData/pt/MonthAbbreviations/4=mai
+FormatData/pt/MonthAbbreviations/5=jun
+FormatData/pt/MonthAbbreviations/6=jul
+FormatData/pt/MonthAbbreviations/7=ago
+FormatData/pt/MonthAbbreviations/8=set
+FormatData/pt/MonthAbbreviations/9=out
+FormatData/pt/MonthAbbreviations/10=nov
+FormatData/pt/MonthAbbreviations/11=dez
+
diff --git a/jdk/test/sun/text/resources/LocaleDataTest.java b/jdk/test/sun/text/resources/LocaleDataTest.java
index ca5d7fee153..73cd7e805ad 100644
--- a/jdk/test/sun/text/resources/LocaleDataTest.java
+++ b/jdk/test/sun/text/resources/LocaleDataTest.java
@@ -35,7 +35,7 @@
  *      6645405 6650730 6910489 6573250 6870908 6585666 6716626 6914413 6916787
  *      6919624 6998391 7019267 7020960 7025837 7020583 7036905 7066203 7101495
  *      7003124 7085757 7028073 7171028 7189611 8000983 7195759 8004489 8006509
- *      7114053 7074882
+ *      7114053 7074882 7040556
  * @summary Verify locale data
  *
  */