title: Configure log4j' HTTP appender to accept self-signed certificate
body: <p>I am trying to send logs to Splunk Cloud' HTTP Event Collector using Log4J' HTTP Appender. However, it seems Splunk uses a self-signed certificate on their HTTP Event Collector, thus causing SSL Validation errors when Log4J tries to connect to it:</p>
  <pre><code>ERROR Unable to send HTTP in appender [Splunk] javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
  </code></pre>
  <p>How can I temporarily disable SSL Certificate verification (similarly to the -k option of CURL) for the HTTP Appender?</p>