Bug 140542 label can't be displayed without resource file or unmatched key
Steps to reproduce: 1.New a report, add a lable with text "aaa" 2.Add a resource file for the report, set key to "key1", value to "actuate", apply the value to the label 3.Clear the resource file in Property Editor->General->Resource File (or change the key to "abc") 4.Preview the report Expected result: 1.Display label text "aaa" on preview or 2.Give a warning message to say resource file is not found or unmatched key Actual result: Nothing displays on preview
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
PropertyBinding propBinding = (PropertyBinding) propertyBindings
					.get( i );
			BigDecimal id = propBinding.getID( );
			if ( id != null && getElementByID( id.longValue( ) ) == element )
				result.add( propBinding );
		}
		return result;
	}
	/**
	 * Checks the name of the embedded image in this report. If duplicate, get a
	 * unique name and rename it.
	 * 
	 * @param image
	 *            the embedded image whose name is need to check
	 */
	public void rename( EmbeddedImage image )
	{
		if ( image == null )
			return;
		if ( StringUtil.isBlank( image.getName( ) ) )
			return;
		List images = getListProperty( this, Module.IMAGES_PROP );
		if ( images == null )
			return;
		
		List names = new ArrayList( );
		for ( int i = 0; i < images.size( ); i++ )
		{
			EmbeddedImage theImage = (EmbeddedImage) images.get( i );
			String name = theImage.getName( );