public static String throwIfBlank(final String value) throws Throwable {
        throwIf(StringUtils.isBlank(value), () -> new IllegalArgumentException("Value cannot be empty or blank"));
        return value;
    }
Throw if value is blank.

@param value the value
@return the value
@throws Throwable the throwable
core/cas-server-core-util-api/src/main/java/org/apereo/cas/util/function/FunctionUtils.java