setExtensions(String.valueOf(extensions));
    }

    /**
     * Reset the {@code executionMap} field to {@code null}
     */
     @Deprecated
    public void flushExecutionMap() {
    }

    /**
     * @return a Map of executions field with {@code PluginExecution#getId()} as key
     * @see PluginExecution#getId()
     */