Bug 141255 No error for the incompatible parameter value
Steps to reproduce: 1.New a decimal parameter, set the default value to "aaa" 2.Preview the report by "Preview" tab Expected result: Error to say the incompatible parameter value Actual result: Parameter request page keeps poping up till input the decimal value Note: if preview in Web Viewer, error will be thrown out, but no exception description.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/actionhandler/BirtRunReportActionHandler.java
{
	/**
	 * Constructor.
	 * 
	 * @param context
	 * @param operation
	 */
	public BirtRunReportActionHandler( IContext context, Operation operation,
			GetUpdatedObjectsResponse response )
	{
		super( context, operation, response );
	}
	/**
	 * Local execution.
	 * 
	 * @exception ReportServiceException
	 * @return
	 */
	protected void __execute( ) throws RemoteException
	{
		ViewerAttributeBean attrBean = (ViewerAttributeBean) context.getBean( );
		Map parameterMap = new HashMap( );
		String docName = attrBean.getReportDocumentName( );