final StringBuilder result = new StringBuilder(parameter);
final Matcher matcher = PARAMETER_PATTERN.matcher(result);
while (matcher.find()) {
final String language = matcher.group(1);
final LanguageInterpreter languageInterpreter = this.getLanguageInterpreter(language);
if (languageInterpreter == null) {
throw new UnsupportedExpressionLanguageException("Could not resolve parameter '" + parameter
+ "'. The language '" + language + "' is not supported.");
}
final String variable = matcher.group(2);
final String replacement = languageInterpreter.resolve(variable, this.objectModel);
if (replacement != null) {
result.replace(matcher.start(), matcher.end(), replacement);
} else {
throw new VariableNotFoundException("Variable {" + language + ":" + variable