<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div><br class=""><blockquote type="cite" class=""><div class=""><div class="">I don't see the javadoc describing that behavior.<br class=""><a href="https://www.slf4j.org/api/org/slf4j/Logger.html" class="">https://www.slf4j.org/api/org/slf4j/Logger.html</a><br class=""></div></div></blockquote><br class=""></div>That Javadoc reads "<span style="color: rgb(53, 56, 51); font-family: Arial, Helvetica, sans-serif; font-size: 12.15999984741211px; background-color: rgb(255, 255, 255);" class="">Be sure to read the FAQ entry relating to </span><a href="https://www.slf4j.org/faq.html#logging_performance" style="text-decoration: none; color: rgb(76, 107, 135); font-family: Arial, Helvetica, sans-serif; font-size: 12.15999984741211px;" class="">parameterized logging</a><span style="color: rgb(53, 56, 51); font-family: Arial, Helvetica, sans-serif; font-size: 12.15999984741211px; background-color: rgb(255, 255, 255);" class="">. Note that logging statements can be parameterized in </span><a href="https://www.slf4j.org/faq.html#paramException" style="text-decoration: none; color: rgb(76, 107, 135); font-family: Arial, Helvetica, sans-serif; font-size: 12.15999984741211px;" class="">presence of an exception/throwable</a><span style="background-color: rgb(255, 255, 255);" class=""><font color="#353833" face="Arial, Helvetica, sans-serif" class=""><span style="font-size: 12.15999984741211px;" class="">.” and </span></font></span>links to <a href="https://www.slf4j.org/faq.html#paramException" class="">https://www.slf4j.org/faq.html#paramException</a> which describes that behavior (which applies to all levels of logging with slf4j).<div class=""><br class=""></div><div class="">Randall</div></body></html>