Change log level in Vert.x by adding a configuration file
<p>I want to change the default log level in my Vert.x app, soy I have added a configuration file called <em>vertx-default-jul-logging.properties</em> to the project, and then add its root folder as a source folder in the classpath, <a href="http://vertx.io/docs/vertx-core/java/#_logging" rel="nofollow">just like the documentation says</a>.</p>

<p>The file has this content:</p>

<pre><code>handlers=java.util.logging.ConsoleHandler,java.util.logging.FileHandler
java.util.logging.SimpleFormatter.format=%5$s %6$s\n
java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter
java.util.logging.ConsoleHandler.level=FINEST
java.util.logging.FileHandler.level=INFO
java.util.logging.FileHandler.formatter=io.vertx.core.logging.impl.VertxLoggerFormatter

# Put the log in the system temporary directory
java.util.logging.FileHandler.pattern=%t/vertx.log

.level=FINEST
io.vertx.ext.web.level=FINEST
io.vertx.level=FINEST
com.hazelcast.level=FINEST
io.netty.util.internal.PlatformDependent.level=FINEST
</code></pre>

<p>Now...none of this works, the log level has not changed a bit; I can't see any debug traces.</p>

<p>What am I doing wrong?</p>