Possible fix for #575 and interface correction

src/main/java/microsoft/exchange/webservices/data/core/service/ServiceObject.java

@@ -232,6 +232,10 @@ protected ServiceObject(ExchangeService service) throws Exception {
     this.propertyBag = new PropertyBag(this);
   }
 
+  protected ServiceObject() {
+    this.propertyBag = new PropertyBag(this);
+  }
+
   /**
    * Gets the schema associated with this type of object.
    *
@@ -391,18 +395,23 @@ public void load() throws Exception {
    * @return The value of specified property in this instance.
    * @throws Exception the exception
    */
-  public Object getObjectFromPropertyDefinition(
-      PropertyDefinitionBase propertyDefinition) throws Exception {
-    PropertyDefinition propDef = (PropertyDefinition) propertyDefinition;
+  public Object getObjectFromPropertyDefinition(PropertyDefinitionBase propertyDefinition) throws Exception {
+    OutParam<Object> propertyValue = new OutParam<Object>();
 
-    if (propDef != null) {
-      return this.getPropertyBag().getObjectFromPropertyDefinition(propDef);
-    } else {
-      // E14:226103 -- Other subclasses of PropertyDefinitionBase are not supported.
-      throw new UnsupportedOperationException(String.format(
-          "This operation isn't supported for property definition type %s.",
-          propertyDefinition.getType().getName()));
-    }
+    if (propertyDefinition instanceof PropertyDefinition) {
+      return getPropertyBag().getObjectFromPropertyDefinition((PropertyDefinition) propertyDefinition);
+	}
+
+    if (propertyDefinition instanceof ExtendedPropertyDefinition) {
+	  if (this.tryGetExtendedProperty(Object.class, (ExtendedPropertyDefinition) propertyDefinition, propertyValue)) {
+		return propertyValue;
+	  }
+	}
+
+    // E14:226103 -- Other subclasses of PropertyDefinitionBase are not supported.
+    throw new UnsupportedOperationException(String.format(
+      "This operation isn't supported for property definition type %s.",
+      propertyDefinition.getType().getName()));
   }
 
   /**
@@ -449,18 +458,19 @@ public boolean tryGetProperty(PropertyDefinitionBase propertyDefinition, OutPara
    * @return true, if successful
    * @throws Exception the exception
    */
-  public <T> boolean tryGetProperty(Class<T> cls, PropertyDefinitionBase propertyDefinition,
-      OutParam<T> propertyValue) throws Exception {
+  public <T> boolean tryGetProperty(Class<T> cls, PropertyDefinitionBase propertyDefinition, OutParam<T> propertyValue) throws Exception {
+    if (propertyDefinition instanceof PropertyDefinition) {
+      return getPropertyBag().tryGetPropertyType(cls, (PropertyDefinition) propertyDefinition, propertyValue);
+    }
 
-    PropertyDefinition propDef = (PropertyDefinition) propertyDefinition;
-    if (propDef != null) {
-      return this.getPropertyBag().tryGetPropertyType(cls, propDef, propertyValue);
-    } else {
-      // E14:226103 -- Other subclasses of PropertyDefinitionBase are not supported.
-      throw new UnsupportedOperationException(String.format(
-          "This operation isn't supported for property definition type %s.",
-          propertyDefinition.getType().getName()));
+    if (propertyDefinition instanceof ExtendedPropertyDefinition) {
+      return this.tryGetExtendedProperty(cls, (ExtendedPropertyDefinition) propertyDefinition, propertyValue);
     }
+
+    // E14:226103 -- Other subclasses of PropertyDefinitionBase are not supported.
+    throw new UnsupportedOperationException(String.format(
+      "This operation isn't supported for property definition type %s.",
+      propertyDefinition.getType().getName()));
   }
 
   /**

src/main/java/microsoft/exchange/webservices/data/core/service/folder/Folder.java

@@ -60,15 +60,17 @@
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
+import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.EnumSet;
 
 /**
  * Represents a generic folder.
  */
 @ServiceObjectDefinition(xmlElementName = XmlElementNames.Folder)
-public class Folder extends ServiceObject {
+public class Folder extends ServiceObject implements Serializable {
 
+  private static final long serialVersionUID = -1821642181310536327L;
   private static final Log LOG = LogFactory.getLog(Folder.class);
 
   /**