The exception is coming from Netty, not Log4j 2. You would have to look at the Log4j2Logger class there and find out why it is throwing an exception.
Ralph > On Feb 27, 2020, at 1:35 AM, Sandeep Gupta <gupta.sand...@gmail.com> wrote: > > Hello, > > I am new to java ecosystem and was handed this small code which > launches a webserver. It gives a log4j version mismatch error that I > am not able to debug further. > For compilation, I am using log4j 2.12.1 version. > > java.lang.ExceptionInInitializerError > application stacktrace > Caused by: java.lang.UnsupportedOperationException: Log4J2 version mismatch > at io.netty.util.internal.logging.Log4J2Logger.<init>(Log4J2Logger.java:58) > at > io.netty.util.internal.logging.Log4J2LoggerFactory.newInstance(Log4J2LoggerFactory.java:33) > at > io.netty.util.internal.logging.InternalLoggerFactory.getInstance(InternalLoggerFactory.java:93) > at > io.netty.util.internal.logging.InternalLoggerFactory.getInstance(InternalLoggerFactory.java:86) > at > io.netty.channel.MultithreadEventLoopGroup.<clinit>(MultithreadEventLoopGroup.java:35) > ... 3 more > > How do i figure out which version of log4j does netty or jvm requires. > > Thank you for helping > San > > --------------------------------------------------------------------- > To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org > For additional commands, e-mail: log4j-user-h...@logging.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org For additional commands, e-mail: log4j-user-h...@logging.apache.org
