public String setValue(String name, String value) {
        return values.put(name, value);
    }
Sets the value of the field having the given name. Any existing value
for that field is replaced.

@param name
    The name of the field whose value should be assigned.

@param value
    The value to assign to the field having the given name.

@return
    The previous value of the field, or null if the value of the field
    was not previously defined.
guacamole-ext/src/main/java/org/apache/guacamole/net/auth/credentials/UserCredentials.java