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    <p>Almost there. It's:<br>
    </p>
      logger.error("Failed to format {} (user : {})", param1, param2,
    ex); <br>
    <br>
    i.e. if the last function parameter is a throwable, it is considered
    as a provided throwable, not as a format parameter.<br>
    <br>
    <br>
      Claude<br>
    <br>
    <div class="moz-cite-prefix">On 27/03/2017 05:53, chanwook park
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAD-EsAiK2t2=D5esH1mRc2X=AN79q-+4Tz2TX+TAaDKZOwzLTw@mail.gmail.com"
      type="cite">
      <div dir="ltr">Thanks for your answer.
        <div><br>
        </div>
        <div>I understood to randall's comment, but I want to use with
          multi parameterized variable.</div>
        <div>For example,</div>
        <div><br>
        </div>
        <div>// usage</div>
        <div>logger.error("Failed to format {} (user : {})", ex, param1,
          param2); </div>
        <div><br>
        </div>
        <div>// api</div>
        <div>Logger.error(String message, Throwable ex, Object... param)</div>
        <div><br>
        </div>
        <div>Is there no way to do this? Or is this problem? </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div>chanwook</div>
        <div> </div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Wed, Mar 22, 2017 at 8:00 PM, <span
            dir="ltr"><<a moz-do-not-send="true"
              href="mailto:slf4j-user-request@qos.ch" target="_blank">slf4j-user-request@qos.ch</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">Send
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            Today's Topics:<br>
            <br>
               1. Re: slf4j-user Digest, Vol 56, Issue 13 (Randall Wood)<br>
            <br>
            <br>
            ------------------------------<wbr>------------------------------<wbr>----------<br>
            <br>
            Message: 1<br>
            Date: Tue, 21 Mar 2017 07:06:01 -0400<br>
            From: Randall Wood <<a moz-do-not-send="true"
              href="mailto:randall.h.wood@alexandriasoftware.com">randall.h.wood@<wbr>alexandriasoftware.com</a>><br>
            To: <a moz-do-not-send="true"
              href="mailto:slf4j-user@qos.ch">slf4j-user@qos.ch</a><br>
            Subject: Re: [slf4j-user] slf4j-user Digest, Vol 56, Issue
            13<br>
            Message-ID:<br>
                    <<a moz-do-not-send="true"
href="mailto:A821EBDE-7145-4B2B-BCA4-A4EF81E0788F@alexandriasoftware.com">A821EBDE-7145-4B2B-BCA4-<wbr>A4EF81E0788F@<wbr>alexandriasoftware.com</a>><br>
            Content-Type: text/plain; charset="utf-8"<br>
            <br>
            <br>
            > I don't see the javadoc describing that behavior.<br>
            > <a moz-do-not-send="true"
              href="https://www.slf4j.org/api/org/slf4j/Logger.html"
              rel="noreferrer" target="_blank">https://www.slf4j.org/api/org/<wbr>slf4j/Logger.html</a>
            <<a moz-do-not-send="true"
              href="https://www.slf4j.org/api/org/slf4j/Logger.html"
              rel="noreferrer" target="_blank">https://www.slf4j.org/api/<wbr>org/slf4j/Logger.html</a>><br>
            <br>
            That Javadoc reads "Be sure to read the FAQ entry relating
            to parameterized logging <<a moz-do-not-send="true"
              href="https://www.slf4j.org/faq.html#logging_performance"
              rel="noreferrer" target="_blank">https://www.slf4j.org/faq.<wbr>html#logging_performance</a>>.
            Note that logging statements can be parameterized in
            presence of an exception/throwable <<a
              moz-do-not-send="true"
              href="https://www.slf4j.org/faq.html#paramException"
              rel="noreferrer" target="_blank">https://www.slf4j.org/faq.<wbr>html#paramException</a>>.”
            and links to <a moz-do-not-send="true"
              href="https://www.slf4j.org/faq.html#paramException"
              rel="noreferrer" target="_blank">https://www.slf4j.org/faq.<wbr>html#paramException</a>
            <<a moz-do-not-send="true"
              href="https://www.slf4j.org/faq.html#paramException"
              rel="noreferrer" target="_blank">https://www.slf4j.org/faq.<wbr>html#paramException</a>>
            which describes that behavior (which applies to all levels
            of logging with slf4j).<br>
            <br>
            Randall<br>
            -------------- next part --------------<br>
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            <br>
            ------------------------------<br>
            <br>
            Subject: Digest Footer<br>
            <br>
            ______________________________<wbr>_________________<br>
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            <br>
            ------------------------------<br>
            <br>
            End of slf4j-user Digest, Vol 56, Issue 14<br>
            ******************************<wbr>************<br>
          </blockquote>
        </div>
        <br>
        <br clear="all">
        <div><br>
        </div>
        -- <br>
        <div class="gmail_signature" data-smartmail="gmail_signature">
          <div dir="ltr">
            <div>
              <div dir="ltr">
                <div dir="ltr">
                  <div dir="ltr">
                    <div dir="ltr"><span style="font-size:small">===============================================</span><br>
                      <span style="font-size:small">박 찬욱 Chanwook Park</span>
                      <div><br>
                      </div>
                      <div>Phone :: 010-9019-2553 </div>
                      <div><br>
                      </div>
                      <div>Github :: <a moz-do-not-send="true"
                          href="https://github.com/chanwookpark"
                          target="_blank">https://github.com/chanwookpark</a></div>
                      <div>Blog :: <a moz-do-not-send="true"
                          href="http://chanwookpark.github.io"
                          target="_blank">http://chanwookpark.github.io</a> </div>
                      <div>LinkedIn :: <a moz-do-not-send="true"
                          href="https://www.linkedin.com/in/chanwook-park-47304148"
                          target="_blank">https://www.linkedin.com/in/chanwook-park-47304148</a> </div>
                      <div>===============================================</div>
                    </div>
                  </div>
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              </div>
            </div>
          </div>
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      <br>
      <pre wrap="">_______________________________________________
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