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
if ( element == null )
			return;
		IElementDefn defn = element.getDefn( );
		if ( defn.getNameOption( ) == MetaDataConstants.REQUIRED_NAME
				|| element.getRoot( ) instanceof Library
				|| element.getName( ) != null )
			makeUniqueName( element );
		for ( int i = 0; i < defn.getSlotCount( ); i++ )
		{
			ContainerSlot slot = element.getSlot( i );
			if ( slot != null )
			{
				for ( int pos = 0; pos < slot.getCount( ); pos++ )
				{
					DesignElement innerElement = slot.getContent( pos );
					rename( innerElement );
				}
			}
		}
	}
	/**
	 * Returns the version manager for the API compatibility.
	 * 
	 * @return the version manager
	 */
	public VersionControlMgr getVersionManager( )
	{
		return versionMgr;
	}
}