Use String.replace() instead of String.replaceAll().
diff --git a/src/test/java/org/apache/commons/lang3/time/FastDatePrinterTest.java b/src/test/java/org/apache/commons/lang3/time/FastDatePrinterTest.java
index f3511a5..8a68720 100644
--- a/src/test/java/org/apache/commons/lang3/time/FastDatePrinterTest.java
+++ b/src/test/java/org/apache/commons/lang3/time/FastDatePrinterTest.java
@@ -210,8 +210,8 @@
         fdf = getInstance(pattern);
         sdf = new SimpleDateFormat(pattern);
         // SDF bug fix starting with Java 7
-        assertEquals(sdf.format(date1).replaceAll("2003 03 03 03", "2003 2003 03 2003"), fdf.format(date1));
-        assertEquals(sdf.format(date2).replaceAll("2003 03 03 03", "2003 2003 03 2003"), fdf.format(date2));
+        assertEquals(sdf.format(date1).replace("2003 03 03 03", "2003 2003 03 2003"), fdf.format(date1));
+        assertEquals(sdf.format(date2).replace("2003 03 03 03", "2003 2003 03 2003"), fdf.format(date2));
     }
 
     @Test