src/org/ohmage/util/StringUtils.java
public static String validateString(String value) {
		if(isEmptyOrWhitespaceOnly(value)) {
			return null;
		}
		return value;
	}
/**
	 * Validates that a String value is a valid string value.
	 * 
	 * @return true if the provided value is a valid URN, false otherwise
	 */
Validates that a String value is a valid string value.

@return true if the provided value is a valid URN, false otherwise
Validates that a String value is a valid string value . @return true if the provided value is a valid URN false otherwise
public static String validateString(String value) {
		if(isEmptyOrWhitespaceOnly(value)) {
			return null;
		}
		return value;
	}
public static String validateString ( String value ) { if ( isEmptyOrWhitespaceOnly ( value ) ) { return null ; } return value ; }
Validates that a String value is a valid string value.
Validates that a String value is a valid string value .