Fixing log4jv2 errors

[sachinkarve]

If a dependency contains log4j2 plugin, a Log4j2Plugins.dat cache file is included in the jar. When the Maven shade plugin is used to merge multiple jars with a Log4j2Plugins.dat file, only one will survive. Without the plugin definitions, following errors are shown on startup.

$ docker run -v /tmp/cp4m:/tmp/cp4m -e CP4M_CONFIGURATION_FILE=/tmp/cp4m/cp4m.toml -p 8080:8081 cp4m
WARNING: sun.reflect.Reflection.getCallerClass is not supported. This will impact performance.
ERROR StatusLogger Unrecognized format specifier [d]
ERROR StatusLogger Unrecognized conversion specifier [d] starting at position 16 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [thread]
ERROR StatusLogger Unrecognized conversion specifier [thread] starting at position 25 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [level]
ERROR StatusLogger Unrecognized conversion specifier [level] starting at position 35 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [logger]
ERROR StatusLogger Unrecognized conversion specifier [logger] starting at position 47 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [msg]
ERROR StatusLogger Unrecognized conversion specifier [msg] starting at position 54 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [n]
ERROR StatusLogger Unrecognized conversion specifier [n] starting at position 56 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [d]
ERROR StatusLogger Unrecognized conversion specifier [d] starting at position 16 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [thread]
ERROR StatusLogger Unrecognized conversion specifier [thread] starting at position 25 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [level]
ERROR StatusLogger Unrecognized conversion specifier [level] starting at position 35 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [logger]
ERROR StatusLogger Unrecognized conversion specifier [logger] starting at position 47 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [msg]
ERROR StatusLogger Unrecognized conversion specifier [msg] starting at position 54 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [n]
ERROR StatusLogger Unrecognized conversion specifier [n] starting at position 56 in conversion pattern.

This does not have an official fix from maven or log4jv2 yet. Fixing it by taking out minimize var to not overlap definitions.

Logs after fix--

sachinkarve@sachinkarve-mbp CP4M % docker run -v /tmp/cp4m:/tmp/cp4m -e CP4M_CONFIGURATION_FILE=/tmp/cp4m/cp4m.toml -p 8080:8080 cp4m 
{"timeMillis":1715957768907,"thread":"main","level":"INFO","loggerName":"io.javalin.Javalin","message":"Starting Javalin ...","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","contextMap":{},"threadId":1,"threadPriority":5,"timestamp":"2024-05-17T14:56:08.907+0000"}
{"timeMillis":1715957768957,"thread":"main","level":"INFO","loggerName":"org.eclipse.jetty.server.Server","message":"jetty-11.0.19; built: 2023-12-15T20:54:39.802Z; git: f781e475c8fa9e9c8ce18b1eaa03110d510f905f; jvm 21.0.3+9-LTS","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","contextMap":{},"threadId":1,"threadPriority":5,"timestamp":"2024-05-17T14:56:08.957+0000"}
{"timeMillis":1715957768986,"thread":"main","level":"INFO","loggerName":"org.eclipse.jetty.server.session.DefaultSessionIdManager","message":"Session workerName=node0","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","contextMap":{},"threadId":1,"threadPriority":5,"timestamp":"2024-05-17T14:56:08.986+0000"}
{"timeMillis":1715957768993,"thread":"main","level":"INFO","loggerName":"org.eclipse.jetty.server.handler.ContextHandler","message":"Started o.e.j.s.ServletContextHandler@7ae895f1{/,null,AVAILABLE}","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","contextMap":{},"threadId":1,"threadPriority":5,"timestamp":"2024-05-17T14:56:08.993+0000"}
{"timeMillis":1715957768997,"thread":"main","level":"INFO","loggerName":"org.eclipse.jetty.server.AbstractConnector","message":"Started ServerConnector@fffa36e{HTTP/1.1, (http/1.1)}{0.0.0.0:8080}","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","contextMap":{},"threadId":1,"threadPriority":5,"timestamp":"2024-05-17T14:56:08.997+0000"}
{"timeMillis":1715957768998,"thread":"main","level":"INFO","loggerName":"org.eclipse.jetty.server.Server","message":"Started Server@20725e24{STARTING}[11.0.19,sto=0] @1012ms","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","contextMap":{},"threadId":1,"threadPriority":5,"timestamp":"2024-05-17T14:56:08.998+0000"}
{"timeMillis":1715957768998,"thread":"main","level":"INFO","loggerName":"io.javalin.Javalin","message":"\n       __                  ___           _____\n      / /___ __   ______ _/ (_)___      / ___/\n __  / / __ `/ | / / __ `/ / / __ \\    / __ \\\n/ /_/ / /_/ /| |/ / /_/ / / / / / /   / /_/ /\n\\____/\\__,_/ |___/\\__,_/_/_/_/ /_/    \\____/\n\n       https://javalin.io/documentation\n","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","contextMap":{},"threadId":1,"threadPriority":5,"timestamp":"2024-05-17T14:56:08.998+0000"}
{"timeMillis":1715957768999,"thread":"main","level":"INFO","loggerName":"io.javalin.Javalin","message":"Javalin started in 132ms \\o/","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","contextMap":{},"threadId":1,"threadPriority":5,"timestamp":"2024-05-17T14:56:08.999+0000"}
{"timeMillis":1715957769002,"thread":"main","level":"INFO","loggerName":"io.javalin.Javalin","message":"Listening on http://localhost:8080/","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","contextMap":{},"threadId":1,"threadPriority":5,"timestamp":"2024-05-17T14:56:09.002+0000"}
{"timeMillis":1715957769010,"thread":"main","level":"INFO","loggerName":"io.javalin.Javalin","message":"You are running Javalin 6.0.1 (released February 4, 2024. Your Javalin version is 103 days old. Consider checking for a newer version.).","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","contextMap":{},"threadId":1,"threadPriority":5,"timestamp":"2024-05-17T14:56:09.010+0000"}