Bug 153378 [Regression]Label text won't show up when the text key is not found
Steps to reproduce: 1.Add a label, set text to "aaa" 2.Add a resource file "a" to the report, add a text key "k1" which is not in the a.properties to the label 3.Preview in Web Viewer Expected result: Label display "aaa" when the text key is not found Actual result: Nothing in preview
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/util/ParameterValidationUtil.java
static final Number doValidateNumber( String dataType, String value,
			ULocale locale ) throws ValidationValueException
	{
		assert DesignChoiceConstants.PARAM_TYPE_FLOAT
				.equalsIgnoreCase( dataType )
				|| DesignChoiceConstants.PARAM_TYPE_DECIMAL
						.equalsIgnoreCase( dataType )
				|| DesignChoiceConstants.PARAM_TYPE_INTEGER
						.equalsIgnoreCase( dataType );
		value = StringUtil.trimString( value );
		if ( value == null )
			return null;
		NumberFormat localeFormatter = DesignChoiceConstants.PARAM_TYPE_INTEGER
				.equalsIgnoreCase( dataType ) ? NumberFormat
				.getIntegerInstance( locale ) : NumberFormat
				.getNumberInstance( locale );
		try
		{
			
			
			return localeFormatter.parse( value );
		}
		catch ( ParseException e )
		{
			throw new ValidationValueException( value,
					PropertyValueException.DESIGN_EXCEPTION_INVALID_VALUE,
					dataType );
		}
	}
	/**