}
try {
// Now create a target to be run by a value runner.
ValueRunner valueRunner = owner.getValueRunner();
ValueNode valueNode = valueRunner.getValue(expressionTarget, expressionModule);
if (valueRunner.isErrorFlagged()) {
result.append(valueRunner.getErrorMessage(expressionTarget, expressionModule));
return false;
} else if (valueNode == null) {
result.append(NavigatorMessages.getString("NAV_NullValueNode_Message"));
return false;