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
catch ( ValidationValueException e )
		{
			return validate( dataType, value, locale );
		}
	}
	/**
	 * Validates a input parameter value with the given data type, format choice
	 * string and a default locale defined by the class(Locale.US). The returned
	 * value is pattern dependent. The data type and the format can be one pair
	 * of the following:
	 * <p>
	 * <table border="1" cellpadding="0" cellspacing="0" style="border-collapse:
	 * collapse" bordercolor="#111111" width="36%" id="AutoNumber1">
	 * <tr>
	 * <td width="16%">Data Type</td>
	 * <td width="84%">Format Type</td>
	 * </tr>
	 * <tr>
	 * <td width="16%">Float/Decimal</td>
	 * <td width="84%">
	 * <ul>
	 * <li>General Number</li>
	 * <li>Currency</li>
	 * <li>Fixed</li>
	 * <li>Percent</li>
	 * <li>Scientific</li>
	 * <li>Standard</li>
	 * <li>pattern string, such as "###,##0", "###,##0.00 'm/s'", "###.#\';';#"
	 * and so on.</li>
	 * </ul>