setLenient(false) for date-time format checking

Author: erosb

core/src/main/java/org/everit/json/schema/internal/DateTimeFormatValidator.java

@@ -30,14 +30,20 @@ public class DateTimeFormatValidator implements FormatValidator {
 
   private static final String DATETIME_FORMAT_STRING_SECFRAC = "yyyy-MM-dd'T'HH:mm:ss.SSSXXX";
 
+  private SimpleDateFormat dateFormat(final String pattern) {
+    SimpleDateFormat rval = new SimpleDateFormat(pattern);
+    rval.setLenient(false);
+    return rval;
+  }
+
   @Override
   public Optional<String> validate(final String subject) {
     try {
-      new SimpleDateFormat(DATETIME_FORMAT_STRING).parse(subject);
+      dateFormat(DATETIME_FORMAT_STRING).parse(subject);
       return Optional.empty();
     } catch (ParseException e) {
       try {
-        new SimpleDateFormat(DATETIME_FORMAT_STRING_SECFRAC).parse(subject);
+        dateFormat(DATETIME_FORMAT_STRING_SECFRAC).parse(subject);
         return Optional.empty();
       } catch (ParseException e1) {
         return Optional.of(String.format("[%s] is not a valid date-time", subject));

core/src/test/java/org/everit/json/schema/internal/DefaultFormatValidatorTest.java

@@ -49,7 +49,7 @@ public void dateTimeFormatFailure() {
 
   @Test
   public void dateTimeSecFracSuccess() {
-    assertSuccess("2015-02-30T11:00:00.111Z", new DateTimeFormatValidator());
+    assertSuccess("2015-02-28T11:00:00.111Z", new DateTimeFormatValidator());
   }
 
   @Test
@@ -59,7 +59,7 @@ public void dateTimeSuccess() {
 
   @Test
   public void dateTimeZSuccess() {
-    assertSuccess("2015-02-30T11:00:00Z", new DateTimeFormatValidator());
+    assertSuccess("2015-02-28T11:00:00Z", new DateTimeFormatValidator());
   }
 
   @Test