diff -r 000000000000 -r fb9019fb1bf7 src/net/fortuna/ical4j/model/property/Summary.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/net/fortuna/ical4j/model/property/Summary.java	Tue Feb 10 18:12:00 2015 +0100
@@ -0,0 +1,158 @@
+/**
+ * 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 net.fortuna.ical4j.model.Escapable;
+import net.fortuna.ical4j.model.Parameter;
+import net.fortuna.ical4j.model.ParameterList;
+import net.fortuna.ical4j.model.Property;
+import net.fortuna.ical4j.model.PropertyFactoryImpl;
+import net.fortuna.ical4j.model.ValidationException;
+import net.fortuna.ical4j.util.ParameterValidator;
+
+/**
+ * $Id$
+ * 
+ * Created: [Apr 6, 2004]
+ *
+ * Defines a SUMMARY iCalendar component property.
+ * 
+ * <pre>
+ *     4.8.1.12 Summary
+ *     
+ *        Property Name: SUMMARY
+ *     
+ *        Purpose: This property defines a short summary or subject for the
+ *        calendar component.
+ *     
+ *        Value Type: TEXT
+ *     
+ *        Property Parameters: Non-standard, alternate text representation and
+ *        language property parameters can be specified on this property.
+ *     
+ *        Conformance: The property can be specified in &quot;VEVENT&quot;, &quot;VTODO&quot;,
+ *        &quot;VJOURNAL&quot; or &quot;VALARM&quot; calendar components.
+ *     
+ *        Description: This property is used in the &quot;VEVENT&quot;, &quot;VTODO&quot; and
+ *        &quot;VJOURNAL&quot; calendar components to capture a short, one line summary
+ *        about the activity or journal entry.
+ *     
+ *        This property is used in the &quot;VALARM&quot; calendar component to capture
+ *        the subject of an EMAIL category of alarm.
+ *     
+ *        Format Definition: The property is defined by the following notation:
+ *     
+ *          summary    = &quot;SUMMARY&quot; summparam &quot;:&quot; text CRLF
+ *     
+ *          summparam  = *(
+ *     
+ *                     ; the following are optional,
+ *                     ; but MUST NOT occur more than once
+ *     
+ *                     (&quot;;&quot; altrepparam) / (&quot;;&quot; languageparam) /
+ *     
+ *                     ; the following is optional,
+ *                     ; and MAY occur more than once
+ *     
+ *                     (&quot;;&quot; xparam)
+ *     
+ *                     )
+ *     
+ *        Example: The following is an example of this property:
+ *     
+ *          SUMMARY:Department Party
+ * </pre>
+ * 
+ * @author Ben Fortuna
+ */
+public class Summary extends Property implements Escapable {
+
+    private static final long serialVersionUID = 7709437653910363024L;
+
+    private String value;
+
+    /**
+     * Default constructor.
+     */
+    public Summary() {
+        super(SUMMARY, PropertyFactoryImpl.getInstance());
+    }
+
+    /**
+     * @param aValue a value string for this component
+     */
+    public Summary(final String aValue) {
+        super(SUMMARY, PropertyFactoryImpl.getInstance());
+        setValue(aValue);
+    }
+
+    /**
+     * @param aList a list of parameters for this component
+     * @param aValue a value string for this component
+     */
+    public Summary(final ParameterList aList, final String aValue) {
+        super(SUMMARY, aList, PropertyFactoryImpl.getInstance());
+        setValue(aValue);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public final void validate() throws ValidationException {
+
+        /*
+         * ; the following are optional, ; but MUST NOT occur more than once (";" altrepparam) / (";" languageparam) /
+         */
+        ParameterValidator.getInstance().assertOneOrLess(Parameter.ALTREP,
+                getParameters());
+        ParameterValidator.getInstance().assertOneOrLess(Parameter.LANGUAGE,
+                getParameters());
+
+        /*
+         * ; the following is optional, ; and MAY occur more than once (";" xparam)
+         */
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public final void setValue(final String aValue) {
+        this.value = aValue;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public final String getValue() {
+        return value;
+    }
+}