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
library.setValid( false );
			library.setAllExceptions( e.getExceptionList( ) );
			libraries.add( library );
		}
	}
	/**
	 * Returns all libaries this module contains.
	 * 
	 * @return list of libraries.
	 */
	public List getAllLibraries( )
	{
		return getLibraries( IModuleNameSpace.ARBITARY_LEVEL );
	}
	/**
	 * Returns included libaries within the given depth.
	 * 
	 * @param level
	 *            the given depth
	 * @return list of libraries.
	 * 
	 * @see IModuleNameSpace
	 */
	public List getLibraries( int level )
	{
		if ( level <= IModuleNameSpace.NATIVE_LEVEL || libraries == null )
			return Collections.EMPTY_LIST;
		int newLevel = level - 1;
		
		if ( newLevel == IModuleNameSpace.NATIVE_LEVEL )