diff -r 5ae3e5665a0b -r cc93757aeca3 src/net/fortuna/ical4j/model/property/ExDate.java
--- a/src/net/fortuna/ical4j/model/property/ExDate.java	Thu Feb 12 18:02:00 2015 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,116 +0,0 @@
-/**
- * Copyright (c) 2012, Ben Fortuna
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *  o Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- *  o Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- *  o Neither the name of Ben Fortuna nor the names of any other contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-package net.fortuna.ical4j.model.property;
-
-import java.text.ParseException;
-
-import net.fortuna.ical4j.model.DateList;
-import net.fortuna.ical4j.model.Parameter;
-import net.fortuna.ical4j.model.ParameterList;
-import net.fortuna.ical4j.model.PropertyFactoryImpl;
-import net.fortuna.ical4j.model.ValidationException;
-import net.fortuna.ical4j.model.parameter.Value;
-import net.fortuna.ical4j.util.ParameterValidator;
-
-/**
- * $Id$
- * 
- * Created: [Apr 6, 2004]
- *
- * Defines a EXDATE iCalendar component property.
- * @author benf
- */
-public class ExDate extends DateListProperty {
-
-    private static final long serialVersionUID = 2635730172243974463L;
-
-    /**
-     * Default constructor.
-     */
-    public ExDate() {
-        super(EXDATE, PropertyFactoryImpl.getInstance());
-    }
-
-    /**
-     * @param aList a list of parameters for this component
-     * @param aValue a value string for this component
-     * @throws ParseException where the specified value string is not a valid date-time/date representation
-     */
-    public ExDate(final ParameterList aList, final String aValue)
-            throws ParseException {
-        super(EXDATE, aList, PropertyFactoryImpl.getInstance());
-        setValue(aValue);
-    }
-
-    /**
-     * @param dList a list of dates
-     */
-    public ExDate(final DateList dList) {
-        super(EXDATE, dList, PropertyFactoryImpl.getInstance());
-    }
-
-    /**
-     * @param aList a list of parameters for this component
-     * @param dList a list of dates
-     */
-    public ExDate(final ParameterList aList, final DateList dList) {
-        super(EXDATE, aList, dList, PropertyFactoryImpl.getInstance());
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    public final void validate() throws ValidationException {
-
-        /*
-         * ; the following are optional, ; but MUST NOT occur more than once (";" "VALUE" "=" ("DATE-TIME" / "DATE")) /
-         * (";" tzidparam) /
-         */
-        ParameterValidator.getInstance().assertOneOrLess(Parameter.VALUE,
-                getParameters());
-
-        final Parameter valueParam = getParameter(Parameter.VALUE);
-
-        if (valueParam != null && !Value.DATE_TIME.equals(valueParam)
-                && !Value.DATE.equals(valueParam)) {
-            throw new ValidationException("Parameter [" + Parameter.VALUE
-                    + "] is invalid");
-        }
-
-        ParameterValidator.getInstance().assertOneOrLess(Parameter.TZID,
-                getParameters());
-
-        /*
-         * ; the following is optional, ; and MAY occur more than once (";" xparam)
-         */
-    }
-}