diff --git a/src/main/java/net/fortuna/ical4j/model/component/VAlarm.java b/src/main/java/net/fortuna/ical4j/model/component/VAlarm.java
index 4ec93219f..6c9fb8c15 100644
--- a/src/main/java/net/fortuna/ical4j/model/component/VAlarm.java
+++ b/src/main/java/net/fortuna/ical4j/model/component/VAlarm.java
@@ -36,8 +36,6 @@
 import net.fortuna.ical4j.validate.*;
 
 import java.time.temporal.TemporalAmount;
-import java.util.Arrays;
-import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -199,14 +197,12 @@ public class VAlarm extends CalendarComponent {
 
     private final Map<Action, Validator> actionValidators = new HashMap<Action, Validator>();
     {
-        actionValidators.put(Action.AUDIO, new ComponentValidator<VAlarm>(
-                Collections.singletonList(new ValidationRule(OneOrLess, ATTACH))));
-        actionValidators.put(Action.DISPLAY, new ComponentValidator<VAlarm>(
-                Collections.singletonList(new ValidationRule(One, DESCRIPTION))));
-        actionValidators.put(Action.EMAIL, new ComponentValidator<VAlarm>(
-                Arrays.asList(new ValidationRule(One, DESCRIPTION, SUMMARY), new ValidationRule(OneOrMore, ATTENDEE))));
-        actionValidators.put(Action.PROCEDURE, new ComponentValidator<VAlarm>(
-                Arrays.asList(new ValidationRule(One, ATTACH), new ValidationRule(OneOrLess, DESCRIPTION))));
+        actionValidators.put(Action.AUDIO, new ComponentValidator<VAlarm>(new ValidationRule(OneOrLess, ATTACH)));
+        actionValidators.put(Action.DISPLAY, new ComponentValidator<VAlarm>(new ValidationRule(One, DESCRIPTION)));
+        actionValidators.put(Action.EMAIL, new ComponentValidator<VAlarm>(new ValidationRule(One, DESCRIPTION, SUMMARY),
+                new ValidationRule(OneOrMore, ATTENDEE)));
+        actionValidators.put(Action.PROCEDURE, new ComponentValidator<VAlarm>(new ValidationRule(One, ATTACH),
+                new ValidationRule(OneOrLess, DESCRIPTION)));
     }
 
     /**
diff --git a/src/main/java/net/fortuna/ical4j/model/component/VEvent.java b/src/main/java/net/fortuna/ical4j/model/component/VEvent.java
index 02bcf3c54..3a2221ab8 100644
--- a/src/main/java/net/fortuna/ical4j/model/component/VEvent.java
+++ b/src/main/java/net/fortuna/ical4j/model/component/VEvent.java
@@ -201,50 +201,43 @@ public class VEvent extends CalendarComponent {
 
     private final Map<Method, Validator> methodValidators = new HashMap<Method, Validator>();
     {
-        methodValidators.put(Method.ADD, new VEventValidator(Arrays.asList(
-                new ValidationRule(One, DTSTAMP, DTSTART, ORGANIZER, SEQUENCE, SUMMARY, UID),
+        methodValidators.put(Method.ADD, new VEventValidator(new ValidationRule(One, DTSTAMP, DTSTART, ORGANIZER, SEQUENCE, SUMMARY, UID),
                 new ValidationRule(OneOrLess, CATEGORIES, CLASS, CREATED, DESCRIPTION, DTEND, DURATION, GEO,
                         LAST_MODIFIED, LOCATION, PRIORITY, RESOURCES, STATUS, TRANSP, URL),
-                new ValidationRule(None, RECURRENCE_ID, REQUEST_STATUS))));
-        methodValidators.put(Method.CANCEL, new VEventValidator(Arrays.asList(
-                new ValidationRule(One, DTSTAMP, DTSTART, ORGANIZER, SEQUENCE, UID),
+                new ValidationRule(None, RECURRENCE_ID, REQUEST_STATUS)));
+        methodValidators.put(Method.CANCEL, new VEventValidator(false, new ValidationRule(One, DTSTAMP, DTSTART, ORGANIZER, SEQUENCE, UID),
                 new ValidationRule(OneOrLess, CATEGORIES, CLASS, CREATED, DESCRIPTION, DTEND, DTSTART, DURATION, GEO,
                         LAST_MODIFIED, LOCATION, PRIORITY, RECURRENCE_ID, RESOURCES, STATUS, SUMMARY, TRANSP, URL),
-                new ValidationRule(None, REQUEST_STATUS)), false));
-        methodValidators.put(Method.COUNTER, new VEventValidator(Arrays.asList(
-                new ValidationRule(One, DTSTAMP, DTSTART, SEQUENCE, SUMMARY, UID),
+                new ValidationRule(None, REQUEST_STATUS)));
+        methodValidators.put(Method.COUNTER, new VEventValidator(new ValidationRule(One, DTSTAMP, DTSTART, SEQUENCE, SUMMARY, UID),
                 new ValidationRule(One, true, ORGANIZER),
                 new ValidationRule(OneOrLess, CATEGORIES, CLASS, CREATED, DESCRIPTION, DTEND, DURATION, GEO,
-                        LAST_MODIFIED, LOCATION, PRIORITY, RECURRENCE_ID, RESOURCES, STATUS, TRANSP, URL))));
-        methodValidators.put(Method.DECLINE_COUNTER, new VEventValidator(Arrays.asList(
-                new ValidationRule(One, DTSTAMP, ORGANIZER, UID),
+                        LAST_MODIFIED, LOCATION, PRIORITY, RECURRENCE_ID, RESOURCES, STATUS, TRANSP, URL)));
+        methodValidators.put(Method.DECLINE_COUNTER, new VEventValidator(false, new ValidationRule(One, DTSTAMP, ORGANIZER, UID),
                 new ValidationRule(OneOrLess, RECURRENCE_ID, SEQUENCE),
                 new ValidationRule(None, ATTACH, ATTENDEE, CATEGORIES, CLASS, CONTACT, CREATED, DESCRIPTION, DTEND,
                         DTSTART, DURATION, EXDATE, EXRULE, GEO, LAST_MODIFIED, LOCATION, PRIORITY, RDATE, RELATED_TO,
-                        RESOURCES, RRULE, STATUS, SUMMARY, TRANSP, URL)), false));
-        methodValidators.put(Method.PUBLISH, new VEventValidator(Arrays.asList(
-                new ValidationRule(One, DTSTART, UID),
+                        RESOURCES, RRULE, STATUS, SUMMARY, TRANSP, URL)));
+        methodValidators.put(Method.PUBLISH, new VEventValidator(new ValidationRule(One, DTSTART, UID),
                 new ValidationRule(One, true, DTSTAMP, ORGANIZER, SUMMARY),
                 new ValidationRule(OneOrLess, RECURRENCE_ID, SEQUENCE, CATEGORIES, CLASS, CREATED, DESCRIPTION, DTEND,
                         DURATION, GEO, LAST_MODIFIED, LOCATION, PRIORITY, RESOURCES, STATUS, TRANSP, URL),
                 new ValidationRule(None, true, ATTENDEE),
-                new ValidationRule(None, REQUEST_STATUS))));
-        methodValidators.put(Method.REFRESH, new VEventValidator(Arrays.asList(
-                new ValidationRule(One, ATTENDEE, DTSTAMP, ORGANIZER, UID),
+                new ValidationRule(None, REQUEST_STATUS)));
+        methodValidators.put(Method.REFRESH, new VEventValidator(false, new ValidationRule(One, ATTENDEE, DTSTAMP, ORGANIZER, UID),
                 new ValidationRule(OneOrLess, RECURRENCE_ID),
                 new ValidationRule(None, ATTACH, CATEGORIES, CLASS, CONTACT, CREATED, DESCRIPTION, DTEND, DTSTART,
                         DURATION, EXDATE, EXRULE, GEO, LAST_MODIFIED, LOCATION, PRIORITY, RDATE, RELATED_TO,
-                        REQUEST_STATUS, RESOURCES, RRULE, SEQUENCE, STATUS, SUMMARY, TRANSP, URL)), false));
-        methodValidators.put(Method.REPLY, new VEventValidator(Arrays.asList(
+                        REQUEST_STATUS, RESOURCES, RRULE, SEQUENCE, STATUS, SUMMARY, TRANSP, URL)));
+        methodValidators.put(Method.REPLY, new VEventValidator(CompatibilityHints.isHintEnabled(CompatibilityHints.KEY_RELAXED_VALIDATION),
                 new ValidationRule(One, ATTENDEE, DTSTAMP, ORGANIZER, UID),
                 new ValidationRule(OneOrLess, RECURRENCE_ID, SEQUENCE, CATEGORIES, CLASS, CREATED, DESCRIPTION, DTEND,
                         DTSTART, DURATION, GEO, LAST_MODIFIED, LOCATION, PRIORITY, RESOURCES, STATUS, SUMMARY, TRANSP,
-                        URL)), CompatibilityHints.isHintEnabled(CompatibilityHints.KEY_RELAXED_VALIDATION)));
-        methodValidators.put(Method.REQUEST, new VEventValidator(Arrays.asList(
-                new ValidationRule(OneOrMore, true, ATTENDEE),
+                        URL)));
+        methodValidators.put(Method.REQUEST, new VEventValidator(new ValidationRule(OneOrMore, true, ATTENDEE),
                 new ValidationRule(One, DTSTAMP, DTSTART, ORGANIZER, SUMMARY, UID),
                 new ValidationRule(OneOrLess, SEQUENCE, CATEGORIES, CLASS, CREATED, DESCRIPTION, DTEND, DURATION, GEO,
-                        LAST_MODIFIED, LOCATION, PRIORITY, RECURRENCE_ID, RESOURCES, STATUS, TRANSP, URL))));
+                        LAST_MODIFIED, LOCATION, PRIORITY, RECURRENCE_ID, RESOURCES, STATUS, TRANSP, URL)));
     }
     
     private ComponentList<VAlarm> alarms;
diff --git a/src/main/java/net/fortuna/ical4j/model/component/VFreeBusy.java b/src/main/java/net/fortuna/ical4j/model/component/VFreeBusy.java
index a799e93c9..45d8ef031 100644
--- a/src/main/java/net/fortuna/ical4j/model/component/VFreeBusy.java
+++ b/src/main/java/net/fortuna/ical4j/model/component/VFreeBusy.java
@@ -207,19 +207,16 @@ public class VFreeBusy extends CalendarComponent {
 
     private final Map<Method, Validator> methodValidators = new HashMap<Method, Validator>();
     {
-        methodValidators.put(Method.PUBLISH, new ComponentValidator<VFreeBusy>(Arrays.asList(
-                new ValidationRule(OneOrMore, FREEBUSY),
+        methodValidators.put(Method.PUBLISH, new ComponentValidator<VFreeBusy>(new ValidationRule(OneOrMore, FREEBUSY),
                 new ValidationRule(One, DTSTAMP, DTSTART, DTEND, ORGANIZER, UID),
                 new ValidationRule(OneOrLess, URL),
-                new ValidationRule(None, ATTENDEE, DURATION, REQUEST_STATUS))));
-        methodValidators.put(Method.REPLY, new ComponentValidator(Arrays.asList(
-                new ValidationRule(One, ATTENDEE, DTSTAMP, DTEND, DTSTART, ORGANIZER, UID),
+                new ValidationRule(None, ATTENDEE, DURATION, REQUEST_STATUS)));
+        methodValidators.put(Method.REPLY, new ComponentValidator(new ValidationRule(One, ATTENDEE, DTSTAMP, DTEND, DTSTART, ORGANIZER, UID),
                 new ValidationRule(OneOrLess, URL),
-                new ValidationRule(None, DURATION, SEQUENCE))));
-        methodValidators.put(Method.REQUEST, new ComponentValidator(Arrays.asList(
-                new ValidationRule(OneOrMore, ATTENDEE),
+                new ValidationRule(None, DURATION, SEQUENCE)));
+        methodValidators.put(Method.REQUEST, new ComponentValidator(new ValidationRule(OneOrMore, ATTENDEE),
                 new ValidationRule(One, DTEND, DTSTAMP, DTSTART, ORGANIZER, UID),
-                new ValidationRule(None, FREEBUSY, DURATION, REQUEST_STATUS, URL))));
+                new ValidationRule(None, FREEBUSY, DURATION, REQUEST_STATUS, URL)));
     }
     
     /**
diff --git a/src/main/java/net/fortuna/ical4j/model/component/VJournal.java b/src/main/java/net/fortuna/ical4j/model/component/VJournal.java
index 869d5cde0..29cefd449 100644
--- a/src/main/java/net/fortuna/ical4j/model/component/VJournal.java
+++ b/src/main/java/net/fortuna/ical4j/model/component/VJournal.java
@@ -108,20 +108,17 @@ public class VJournal extends CalendarComponent {
 
     private final Map<Method, Validator> methodValidators = new HashMap<Method, Validator>();
     {
-        methodValidators.put(Method.ADD, new ComponentValidator<VJournal>(Arrays.asList(
-                new ValidationRule(One, DESCRIPTION, DTSTAMP, DTSTART, ORGANIZER, SEQUENCE, UID),
+        methodValidators.put(Method.ADD, new ComponentValidator<VJournal>(new ValidationRule(One, DESCRIPTION, DTSTAMP, DTSTART, ORGANIZER, SEQUENCE, UID),
                 new ValidationRule(OneOrLess, CATEGORIES, CLASS, CREATED, LAST_MODIFIED, STATUS, SUMMARY, URL),
-                new ValidationRule(None, ATTENDEE, RECURRENCE_ID))));
-        methodValidators.put(Method.CANCEL, new ComponentValidator(Arrays.asList(
-                new ValidationRule(One, DTSTAMP, ORGANIZER, SEQUENCE, UID),
+                new ValidationRule(None, ATTENDEE, RECURRENCE_ID)));
+        methodValidators.put(Method.CANCEL, new ComponentValidator(new ValidationRule(One, DTSTAMP, ORGANIZER, SEQUENCE, UID),
                 new ValidationRule(OneOrLess, CATEGORIES, CLASS, CREATED, DESCRIPTION, DTSTART, LAST_MODIFIED,
                         RECURRENCE_ID, STATUS, SUMMARY, URL),
-                new ValidationRule(None, REQUEST_STATUS))));
-        methodValidators.put(Method.PUBLISH, new ComponentValidator(Arrays.asList(
-                new ValidationRule(One, DESCRIPTION, DTSTAMP, DTSTART, ORGANIZER, UID),
+                new ValidationRule(None, REQUEST_STATUS)));
+        methodValidators.put(Method.PUBLISH, new ComponentValidator(new ValidationRule(One, DESCRIPTION, DTSTAMP, DTSTART, ORGANIZER, UID),
                 new ValidationRule(OneOrLess, CATEGORIES, CLASS, CREATED, LAST_MODIFIED, RECURRENCE_ID, SEQUENCE, STATUS,
                         SUMMARY, URL),
-                new ValidationRule(None, ATTENDEE))));
+                new ValidationRule(None, ATTENDEE)));
     }
     
     /**
diff --git a/src/main/java/net/fortuna/ical4j/model/component/VTimeZone.java b/src/main/java/net/fortuna/ical4j/model/component/VTimeZone.java
index b611ef4c3..f0af563a8 100644
--- a/src/main/java/net/fortuna/ical4j/model/component/VTimeZone.java
+++ b/src/main/java/net/fortuna/ical4j/model/component/VTimeZone.java
@@ -46,7 +46,6 @@
 import java.io.IOException;
 import java.net.URISyntaxException;
 import java.text.ParseException;
-import java.util.Collections;
 import java.util.Objects;
 
 /**
@@ -126,7 +125,7 @@ public class VTimeZone extends CalendarComponent {
 
     private static final long serialVersionUID = 5629679741050917815L;
 
-    private final Validator itipValidator = new VTimeZoneValidator(Collections.emptyList());
+    private final Validator itipValidator = new VTimeZoneValidator();
     
     private ComponentList<Observance> observances;
 
diff --git a/src/main/java/net/fortuna/ical4j/model/component/VToDo.java b/src/main/java/net/fortuna/ical4j/model/component/VToDo.java
index 38510ebfe..d08cdd180 100644
--- a/src/main/java/net/fortuna/ical4j/model/component/VToDo.java
+++ b/src/main/java/net/fortuna/ical4j/model/component/VToDo.java
@@ -127,52 +127,44 @@ public class VToDo extends CalendarComponent {
 
     private final Map<Method, Validator> methodValidators = new HashMap<Method, Validator>();
     {
-        methodValidators.put(Method.ADD, new VToDoValidator(Arrays.asList(
-                new ValidationRule(One, DTSTAMP, ORGANIZER, PRIORITY, SEQUENCE, SUMMARY, UID),
+        methodValidators.put(Method.ADD, new VToDoValidator(new ValidationRule(One, DTSTAMP, ORGANIZER, PRIORITY, SEQUENCE, SUMMARY, UID),
                 new ValidationRule(OneOrLess, CATEGORIES, CLASS, CREATED, DESCRIPTION, DTSTART, DUE, DURATION, GEO,
                         LAST_MODIFIED, LOCATION, PERCENT_COMPLETE, RESOURCES, STATUS, URL),
-                new ValidationRule(None, RECURRENCE_ID, REQUEST_STATUS))));
-        methodValidators.put(Method.CANCEL, new VToDoValidator(Arrays.asList(
-                new ValidationRule(One, UID, DTSTAMP, ORGANIZER, SEQUENCE),
+                new ValidationRule(None, RECURRENCE_ID, REQUEST_STATUS)));
+        methodValidators.put(Method.CANCEL, new VToDoValidator(false, new ValidationRule(One, UID, DTSTAMP, ORGANIZER, SEQUENCE),
                 new ValidationRule(OneOrLess, CATEGORIES, CLASS, CREATED, DESCRIPTION, DTSTART, DUE, DURATION, GEO,
                         LAST_MODIFIED, LOCATION, PERCENT_COMPLETE, RECURRENCE_ID, RESOURCES, PRIORITY, STATUS, URL),
-                new ValidationRule(None, REQUEST_STATUS)), false));
-        methodValidators.put(Method.COUNTER, new VToDoValidator(Arrays.asList(
-                new ValidationRule(OneOrMore, ATTENDEE),
+                new ValidationRule(None, REQUEST_STATUS)));
+        methodValidators.put(Method.COUNTER, new VToDoValidator(new ValidationRule(OneOrMore, ATTENDEE),
                 new ValidationRule(One, DTSTAMP, ORGANIZER, PRIORITY, SUMMARY, UID),
                 new ValidationRule(OneOrLess, CATEGORIES, CLASS, CREATED, DESCRIPTION, DTSTART, DUE, DURATION, GEO,
                         LAST_MODIFIED, LOCATION, PERCENT_COMPLETE, RECURRENCE_ID, RESOURCES, RRULE, SEQUENCE, STATUS,
-                        URL))));
-        methodValidators.put(Method.DECLINE_COUNTER, new VToDoValidator(Arrays.asList(
-                new ValidationRule(OneOrMore, ATTENDEE),
+                        URL)));
+        methodValidators.put(Method.DECLINE_COUNTER, new VToDoValidator(false, new ValidationRule(OneOrMore, ATTENDEE),
                 new ValidationRule(One, DTSTAMP, ORGANIZER, SEQUENCE, UID),
                 new ValidationRule(OneOrLess, CATEGORIES, CLASS, CREATED, DESCRIPTION, DTSTART, DUE, DURATION, GEO,
                         LAST_MODIFIED, LOCATION, LOCATION, PERCENT_COMPLETE, PRIORITY, RECURRENCE_ID, RESOURCES, STATUS,
-                        URL)), false));
-        methodValidators.put(Method.PUBLISH, new VToDoValidator(Arrays.asList(
-                new ValidationRule(One, DTSTAMP, SUMMARY, UID),
+                        URL)));
+        methodValidators.put(Method.PUBLISH, new VToDoValidator(new ValidationRule(One, DTSTAMP, SUMMARY, UID),
                 new ValidationRule(One, true, ORGANIZER, PRIORITY),
                 new ValidationRule(OneOrLess, DTSTART, SEQUENCE, CATEGORIES, CLASS, CREATED, DESCRIPTION, DUE, DURATION,
                         GEO, LAST_MODIFIED, LOCATION, PERCENT_COMPLETE, RECURRENCE_ID, RESOURCES, STATUS, URL),
-                new ValidationRule(None, ATTENDEE, REQUEST_STATUS))));
-        methodValidators.put(Method.REFRESH, new VToDoValidator(Arrays.asList(
-                new ValidationRule(One, ATTENDEE, DTSTAMP, UID),
+                new ValidationRule(None, ATTENDEE, REQUEST_STATUS)));
+        methodValidators.put(Method.REFRESH, new VToDoValidator(false, new ValidationRule(One, ATTENDEE, DTSTAMP, UID),
                 new ValidationRule(OneOrLess, RECURRENCE_ID),
                 new ValidationRule(None, ATTACH, CATEGORIES, CLASS, CONTACT, CREATED, DESCRIPTION, DTSTART, DUE,
                         DURATION, EXDATE, EXRULE, GEO, LAST_MODIFIED, LOCATION, ORGANIZER, PERCENT_COMPLETE, PRIORITY,
-                        RDATE, RELATED_TO, REQUEST_STATUS, RESOURCES, RRULE, SEQUENCE, STATUS, URL)), false));
-        methodValidators.put(Method.REPLY, new VToDoValidator(Arrays.asList(
-                new ValidationRule(OneOrMore, ATTENDEE),
+                        RDATE, RELATED_TO, REQUEST_STATUS, RESOURCES, RRULE, SEQUENCE, STATUS, URL)));
+        methodValidators.put(Method.REPLY, new VToDoValidator(false, new ValidationRule(OneOrMore, ATTENDEE),
                 new ValidationRule(One, DTSTAMP, ORGANIZER, UID),
                 new ValidationRule(OneOrLess, CATEGORIES, CLASS, CREATED, DESCRIPTION, DTSTART, DUE, DURATION, GEO,
                         LAST_MODIFIED, LOCATION, PERCENT_COMPLETE, PRIORITY, RESOURCES, RECURRENCE_ID, SEQUENCE, STATUS,
-                        SUMMARY, URL)), false));
-        methodValidators.put(Method.REQUEST, new VToDoValidator(Arrays.asList(
-                new ValidationRule(OneOrMore, ATTENDEE),
+                        SUMMARY, URL)));
+        methodValidators.put(Method.REQUEST, new VToDoValidator(new ValidationRule(OneOrMore, ATTENDEE),
                 new ValidationRule(One, DTSTAMP, DTSTART, ORGANIZER, PRIORITY, SUMMARY, UID),
                 new ValidationRule(OneOrLess, SEQUENCE, CATEGORIES, CLASS, CREATED, DESCRIPTION, DUE, DURATION, GEO,
                         LAST_MODIFIED, LOCATION, PERCENT_COMPLETE, RECURRENCE_ID, RESOURCES, STATUS, URL),
-                new ValidationRule(None, REQUEST_STATUS))));
+                new ValidationRule(None, REQUEST_STATUS)));
     }
     
     private ComponentList<VAlarm> alarms = new ComponentList<>();
diff --git a/src/main/java/net/fortuna/ical4j/validate/CalendarValidatorImpl.java b/src/main/java/net/fortuna/ical4j/validate/CalendarValidatorImpl.java
index bc1f4fcd0..eaea18720 100644
--- a/src/main/java/net/fortuna/ical4j/validate/CalendarValidatorImpl.java
+++ b/src/main/java/net/fortuna/ical4j/validate/CalendarValidatorImpl.java
@@ -8,6 +8,7 @@
 import net.fortuna.ical4j.util.CompatibilityHints;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
@@ -20,8 +21,8 @@ public class CalendarValidatorImpl implements Validator<Calendar> {
 
     private final List<ValidationRule> rules;
 
-    public CalendarValidatorImpl(List<ValidationRule> rules) {
-        this.rules = rules;
+    public CalendarValidatorImpl(ValidationRule... rules) {
+        this.rules = Arrays.asList(rules);
 
         Collections.addAll(calendarProperties, CalScale.class, Method.class, ProdId.class, Version.class,
                 Uid.class, LastModified.class, Url.class, RefreshInterval.class, Source.class, Color.class,
diff --git a/src/main/java/net/fortuna/ical4j/validate/ComponentValidator.java b/src/main/java/net/fortuna/ical4j/validate/ComponentValidator.java
index 88e6c1afa..3c33164eb 100644
--- a/src/main/java/net/fortuna/ical4j/validate/ComponentValidator.java
+++ b/src/main/java/net/fortuna/ical4j/validate/ComponentValidator.java
@@ -35,6 +35,7 @@
 import net.fortuna.ical4j.model.ComponentList;
 import net.fortuna.ical4j.util.CompatibilityHints;
 
+import java.util.Arrays;
 import java.util.List;
 
 import static net.fortuna.ical4j.validate.Validator.assertFalse;
@@ -51,8 +52,8 @@ public class ComponentValidator<T extends Component> implements Validator<T> {
 
     private final List<ValidationRule> rules;
 
-    public ComponentValidator(List<ValidationRule> rules) {
-        this.rules = rules;
+    public ComponentValidator(ValidationRule... rules) {
+        this.rules = Arrays.asList(rules);
     }
 
     @Override
diff --git a/src/main/java/net/fortuna/ical4j/validate/DefaultCalendarValidatorFactory.java b/src/main/java/net/fortuna/ical4j/validate/DefaultCalendarValidatorFactory.java
index 55a2cc242..f4715c007 100644
--- a/src/main/java/net/fortuna/ical4j/validate/DefaultCalendarValidatorFactory.java
+++ b/src/main/java/net/fortuna/ical4j/validate/DefaultCalendarValidatorFactory.java
@@ -2,8 +2,6 @@
 
 import net.fortuna.ical4j.model.Calendar;
 
-import java.util.Arrays;
-
 import static net.fortuna.ical4j.model.Property.*;
 import static net.fortuna.ical4j.validate.ValidationRule.ValidationType.One;
 import static net.fortuna.ical4j.validate.ValidationRule.ValidationType.OneOrLess;
@@ -14,8 +12,7 @@
 public class DefaultCalendarValidatorFactory implements  CalendarValidatorFactory {
     @Override
     public Validator<Calendar> newInstance() {
-        return new CalendarValidatorImpl(Arrays.asList(
-                new ValidationRule(One, PRODID, VERSION),
-                new ValidationRule(OneOrLess, CALSCALE, METHOD)));
+        return new CalendarValidatorImpl(new ValidationRule(One, PRODID, VERSION),
+                new ValidationRule(OneOrLess, CALSCALE, METHOD));
     }
 }
diff --git a/src/main/java/net/fortuna/ical4j/validate/component/VEventValidator.java b/src/main/java/net/fortuna/ical4j/validate/component/VEventValidator.java
index 8d1f5754e..8ec76acde 100644
--- a/src/main/java/net/fortuna/ical4j/validate/component/VEventValidator.java
+++ b/src/main/java/net/fortuna/ical4j/validate/component/VEventValidator.java
@@ -7,9 +7,6 @@
 import net.fortuna.ical4j.validate.ValidationRule;
 import net.fortuna.ical4j.validate.Validator;
 
-import java.util.Arrays;
-import java.util.List;
-
 import static net.fortuna.ical4j.model.Component.VALARM;
 import static net.fortuna.ical4j.model.Property.*;
 import static net.fortuna.ical4j.validate.ValidationRule.ValidationType.One;
@@ -17,17 +14,16 @@
 
 public class VEventValidator extends ComponentValidator<VEvent> {
 
-    private final Validator<VAlarm> itipValidator = new ComponentValidator<>(Arrays.asList(
-            new ValidationRule(One, ACTION, TRIGGER),
-            new ValidationRule(OneOrLess, DESCRIPTION, DURATION, REPEAT, SUMMARY)));
+    private final Validator<VAlarm> itipValidator = new ComponentValidator<>(new ValidationRule(One, ACTION, TRIGGER),
+            new ValidationRule(OneOrLess, DESCRIPTION, DURATION, REPEAT, SUMMARY));
 
     private final boolean alarmsAllowed;
 
-    public VEventValidator(List<ValidationRule> rules) {
-        this(rules, true);
+    public VEventValidator(ValidationRule... rules) {
+        this(true, rules);
     }
 
-    public VEventValidator(List<ValidationRule> rules, boolean alarmsAllowed) {
+    public VEventValidator(boolean alarmsAllowed, ValidationRule... rules) {
         super(rules);
         this.alarmsAllowed = alarmsAllowed;
     }
diff --git a/src/main/java/net/fortuna/ical4j/validate/component/VTimeZoneValidator.java b/src/main/java/net/fortuna/ical4j/validate/component/VTimeZoneValidator.java
index b3e245628..280c1f060 100644
--- a/src/main/java/net/fortuna/ical4j/validate/component/VTimeZoneValidator.java
+++ b/src/main/java/net/fortuna/ical4j/validate/component/VTimeZoneValidator.java
@@ -6,20 +6,16 @@
 import net.fortuna.ical4j.validate.ValidationRule;
 import net.fortuna.ical4j.validate.Validator;
 
-import java.util.Arrays;
-import java.util.List;
-
 import static net.fortuna.ical4j.model.Property.*;
 import static net.fortuna.ical4j.validate.ValidationRule.ValidationType.One;
 import static net.fortuna.ical4j.validate.ValidationRule.ValidationType.OneOrLess;
 
 public class VTimeZoneValidator extends ComponentValidator<VTimeZone> {
 
-    private final Validator itipValidator = new ComponentValidator(Arrays.asList(
-            new ValidationRule(One, DTSTART, TZOFFSETFROM, TZOFFSETTO),
-            new ValidationRule(OneOrLess, TZNAME)));
+    private final Validator itipValidator = new ComponentValidator(new ValidationRule(One, DTSTART, TZOFFSETFROM, TZOFFSETTO),
+            new ValidationRule(OneOrLess, TZNAME));
 
-    public VTimeZoneValidator(List<ValidationRule> rules) {
+    public VTimeZoneValidator(ValidationRule... rules) {
         super(rules);
     }
 
diff --git a/src/main/java/net/fortuna/ical4j/validate/component/VToDoValidator.java b/src/main/java/net/fortuna/ical4j/validate/component/VToDoValidator.java
index 425bfff8a..b311b3492 100644
--- a/src/main/java/net/fortuna/ical4j/validate/component/VToDoValidator.java
+++ b/src/main/java/net/fortuna/ical4j/validate/component/VToDoValidator.java
@@ -7,9 +7,6 @@
 import net.fortuna.ical4j.validate.ValidationRule;
 import net.fortuna.ical4j.validate.Validator;
 
-import java.util.Arrays;
-import java.util.List;
-
 import static net.fortuna.ical4j.model.Component.VALARM;
 import static net.fortuna.ical4j.model.Property.*;
 import static net.fortuna.ical4j.validate.ValidationRule.ValidationType.One;
@@ -17,17 +14,16 @@
 
 public class VToDoValidator extends ComponentValidator<VToDo> {
 
-    private final Validator<VAlarm> itipValidator = new ComponentValidator<>(Arrays.asList(
-            new ValidationRule(One, ACTION, TRIGGER),
-            new ValidationRule(OneOrLess, DESCRIPTION, DURATION, REPEAT, SUMMARY)));
+    private final Validator<VAlarm> itipValidator = new ComponentValidator<>(new ValidationRule(One, ACTION, TRIGGER),
+            new ValidationRule(OneOrLess, DESCRIPTION, DURATION, REPEAT, SUMMARY));
 
     private final boolean alarmsAllowed;
 
-    public VToDoValidator(List<ValidationRule> rules) {
-        this(rules, true);
+    public VToDoValidator(ValidationRule... rules) {
+        this(true, rules);
     }
 
-    public VToDoValidator(List<ValidationRule> rules, boolean alarmsAllowed) {
+    public VToDoValidator(boolean alarmsAllowed, ValidationRule... rules) {
         super(rules);
         this.alarmsAllowed = alarmsAllowed;
     }