Bug 156497 [Regression][Acceptance]Report isn't refreshed when delete used library file.
Description: Report isn't refreshed when delete used library file. Steps to reproduce: 1.New a library, add a label, input actuate. 2.New a report, extend lib.label 3.Delete the library file. 4.Refresh the report in Outline of the report Expected result: Empty label in Layout. Actual result: label with content "actuate" in Layout.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
/**
	 * Gets symbolic name of this module if defined. This property is needed
	 * when search resources in fragments. Usually it should be the plug-in id
	 * of the host plug-in.
	 * 
	 * @return the symbolica name of this module
	 */
	public String getSymbolicName( )
	{
		
		return null;
	}
	/**
	 * Sets symbolic name of this module. This property is needed when search
	 * resources in fragments. Usually it should be the plug-in id of the host
	 * plug-in.
	 * 
	 * @param symbolicName
	 * @throws SemanticException
	 */
	public void setSymbolicName( String symbolicName ) throws SemanticException
	{
		
	}
	/**
	 * Returns the system id of the module. It is the URL path of the module.
	 * 
	 * @return the system id of the module
	 */
	public URL getSystemId( )