Bug 179664 [Automation]CustomXML can't be set on chart[00]
Details; [Automation]CustomXML can't be set on chart[00] Step: 1.Add a chart 2.Open the properties tab and input some word in customXML Actual result: Nothing is set in customXML, when I click the enter, the customXML will come be blank.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/extension/PeerExtensibilityProvider.java
protected List getStyleMasks( )
	{
		return Collections.EMPTY_LIST;
	}
	/**
	 * Returns the value of extension property or extension model property.
	 * 
	 * @param propName
	 *            name of the property
	 * @return the value of the given property. If the property is not found, or
	 *         the value is not set, return null.
	 */
	public Object getExtensionProperty( String propName )
	{
		if ( isExtensionXMLProperty( propName ) && hasOwnModel( propName ) )
		{
			if ( reportItem != null )
			{
				ByteArrayOutputStream stream = reportItem.serialize( propName );
				if ( stream == null )
					return null;
				String retValue = null;
				try
				{
					retValue = stream.toString( UnicodeUtil.SIGNATURE_UTF_8 );
				}
				catch ( UnsupportedEncodingException e )
				{
					assert false;
				}