public void setTokens(Map<String, String> tokens) {
        tokenValues.clear();
        tokenValues.putAll(tokens);
    }
Replaces all current token values with the contents of the given map,
where each map key represents a token name, and each map value
represents a token value.

@param tokens
    A map containing the token names and corresponding values to
    assign.
guacamole-ext/src/main/java/org/apache/guacamole/token/TokenFilter.java