You should try
Config hazelcastConfig = new Config();
hazelcastConfig.setProperty("hazelcast.logging.type", "slf4j");
Hazelcast.newHazelcastInstance(hazelcastConfig);
Keep in mind that slf4j is just facade API for logger. You should use it with actual loggers, like log4j or logback. All required jars should be in a classapath s well. Here is a tutorial of slf4j and logback
Here is an example of logback.xml
.
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{5} - %msg%n</pattern>
</encoder>
</appender>
<logger name="com.hazelcast" level="DEBUG" additivity="false">
<appender-ref ref="STDOUT"/>
</logger>
<root level="INFO">
<appender-ref ref="STDOUT"/>
</root>
</configuration>
Thank you