diff --git a/src/test/java/org/joda/time/TestDateMidnight_Properties.java b/src/test/java/org/joda/time/TestDateMidnight_Properties.java
index e003aa336..32ec588d9 100644
--- a/src/test/java/org/joda/time/TestDateMidnight_Properties.java
+++ b/src/test/java/org/joda/time/TestDateMidnight_Properties.java
@@ -17,13 +17,13 @@
 
 import java.util.Locale;
 
-import junit.framework.TestCase;
-import junit.framework.TestSuite;
-
 import org.joda.time.chrono.CopticChronology;
 import org.joda.time.chrono.LenientChronology;
 import org.joda.time.chrono.StrictChronology;
 
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
 /**
  * This class is a Junit unit test for DateTime.
  *
@@ -235,7 +235,8 @@ public void testPropertyGetMonthOfYear() {
         assertEquals(test.getChronology().months(), test.monthOfYear().getDurationField());
         assertEquals(test.getChronology().years(), test.monthOfYear().getRangeDurationField());
         assertEquals(9, test.monthOfYear().getMaximumTextLength(null));
-        assertEquals(3, test.monthOfYear().getMaximumShortTextLength(null));
+        int max = test.monthOfYear().getMaximumShortTextLength(null);
+        assertTrue(max == 3 || max == 4);  // for JDK17+
         test = new DateMidnight(2004, 7, 9);
         assertEquals("juillet", test.monthOfYear().getAsText(Locale.FRENCH));
         assertEquals("juil.", test.monthOfYear().getAsShortText(Locale.FRENCH));
diff --git a/src/test/java/org/joda/time/TestDateTime_Properties.java b/src/test/java/org/joda/time/TestDateTime_Properties.java
index d82a80ff3..7fe086f0f 100644
--- a/src/test/java/org/joda/time/TestDateTime_Properties.java
+++ b/src/test/java/org/joda/time/TestDateTime_Properties.java
@@ -17,13 +17,13 @@
 
 import java.util.Locale;
 
-import junit.framework.TestCase;
-import junit.framework.TestSuite;
-
 import org.joda.time.chrono.CopticChronology;
 import org.joda.time.chrono.LenientChronology;
 import org.joda.time.chrono.StrictChronology;
 
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
 /**
  * This class is a Junit unit test for DateTime.
  *
@@ -358,7 +358,8 @@ public void testPropertyGetMonthOfYear() {
         assertEquals(test.getChronology().months(), test.monthOfYear().getDurationField());
         assertEquals(test.getChronology().years(), test.monthOfYear().getRangeDurationField());
         assertEquals(9, test.monthOfYear().getMaximumTextLength(null));
-        assertEquals(3, test.monthOfYear().getMaximumShortTextLength(null));
+        int max = test.monthOfYear().getMaximumShortTextLength(null);
+        assertTrue(max == 3 || max == 4);  // for JDK17+
         test = new DateTime(2004, 7, 9, 0, 0, 0, 0);
         assertEquals("juillet", test.monthOfYear().getAsText(Locale.FRENCH));
         assertEquals("juillet", test.monthOfYear().getField().getAsText(7, Locale.FRENCH));
diff --git a/src/test/java/org/joda/time/TestMonthDay_Properties.java b/src/test/java/org/joda/time/TestMonthDay_Properties.java
index c64956b1d..69d806645 100644
--- a/src/test/java/org/joda/time/TestMonthDay_Properties.java
+++ b/src/test/java/org/joda/time/TestMonthDay_Properties.java
@@ -17,13 +17,13 @@
 
 import java.util.Locale;
 
-import junit.framework.TestCase;
-import junit.framework.TestSuite;
-
 import org.joda.time.chrono.CopticChronology;
 import org.joda.time.chrono.LenientChronology;
 import org.joda.time.chrono.StrictChronology;
 
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
 /**
  * This class is a Junit unit test for MonthDay. Based on {@link TestYearMonth_Propeties} 
  */
@@ -90,12 +90,14 @@ public void testPropertyGetMonthOfYear() {
         assertEquals("9", test.monthOfYear().getAsString());
         assertEquals("September", test.monthOfYear().getAsText());
         assertEquals("septembre", test.monthOfYear().getAsText(Locale.FRENCH));
-        assertEquals("Sep", test.monthOfYear().getAsShortText());
+        String text = test.monthOfYear().getAsShortText();
+        assertTrue(text.equals("Sep") || text.equals("Sept"));
         assertEquals("sept.", test.monthOfYear().getAsShortText(Locale.FRENCH));
         assertEquals(test.getChronology().months(), test.monthOfYear().getDurationField());
         // assertEquals(test.getChronology().days(), test.dayOfMonth().getRangeDurationField());
         assertEquals(9, test.monthOfYear().getMaximumTextLength(null));
-        assertEquals(3, test.monthOfYear().getMaximumShortTextLength(null));
+        int max = test.monthOfYear().getMaximumShortTextLength(null);
+        assertTrue(max == 3 || max == 4);  // for JDK17+
     }
 
     public void testPropertyGetMaxMinValuesMonthOfYear() {
diff --git a/src/test/java/org/joda/time/TestMutableDateTime_Properties.java b/src/test/java/org/joda/time/TestMutableDateTime_Properties.java
index 76b045920..70cd889dd 100644
--- a/src/test/java/org/joda/time/TestMutableDateTime_Properties.java
+++ b/src/test/java/org/joda/time/TestMutableDateTime_Properties.java
@@ -244,7 +244,8 @@ public void testPropertyGetMonthOfYear() {
         assertEquals(test.getChronology().months(), test.monthOfYear().getDurationField());
         assertEquals(test.getChronology().years(), test.monthOfYear().getRangeDurationField());
         assertEquals(9, test.monthOfYear().getMaximumTextLength(null));
-        assertEquals(3, test.monthOfYear().getMaximumShortTextLength(null));
+        int max = test.monthOfYear().getMaximumShortTextLength(null);
+        assertTrue(max == 3 || max == 4);  // for JDK17+
         test = new MutableDateTime(2004, 7, 9, 0, 0, 0, 0);
         assertEquals("juillet", test.monthOfYear().getAsText(Locale.FRENCH));
         assertEquals("juil.", test.monthOfYear().getAsShortText(Locale.FRENCH));