public static void install() {
        LogManager.getLogManager().getLogger("").addHandler(new SLF4JBridgeHandler());
    }
Adds a SLF4JBridgeHandler instance to jul's root logger.

<p>This handler will redirect j.u.l. logging to SLF4J. However, only logs enabled
in j.u.l. will be redirected. For example, if a log statement invoking a
j.u.l. logger is disabled, then the corresponding non-event will <em>not</em>
reach SLF4JBridgeHandler and cannot be redirected.
jul-to-slf4j/src/main/java/org/slf4j/bridge/SLF4JBridgeHandler.java