Bug 149251 Inconsistent Handling of a Non-inheritable ROM Property
For a ROM property defined to be non-inheritable, an empty string property value should be consistently handled as an empty string, not as null. For example, an oda.dataSource extension defines a data source property with canInherit=false. When a oda-data-source handle get saved in a report design, it correctly includes the tag for such property, even when an empty string value is specified. <oda-data-source extensionID="my.oda.plugin" name="my Data Source" id="24"> ... <property name="ApplicationServer"></property> </oda-data-source> However, later when using the DE API to read its property value, a null is returned. Then when the report design is subsequently saved, the property tag is lost. Expects that an empty string value of a non-inhertiable property should be preserved.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
* @return the location information of the module
	 */
	public String getLocation( )
	{
		assert systemId != null;
		if ( fileName == null )
			return systemId.toString( );
		return systemId + StringUtil.extractFileNameWithSuffix( fileName );
	}
	/**
	 * @param namespace
	 * @return the included library structure with the given namespace
	 */
	public IncludedLibrary findIncludedLibrary( String namespace )
	{
		List libs = getIncludedLibraries( );
		IncludedLibrary includedItem = null;
		for ( int i = 0; i < libs.size( ); i++ )
		{
			IncludedLibrary incluedLib = (IncludedLibrary) libs.get( i );
			if ( incluedLib.getNamespace( ).equalsIgnoreCase( namespace ) )
			{
				includedItem = incluedLib;
				break;
			}
		}
		return includedItem;
	}
	/**
	 * Gets the library with the given location path.