GWT maven plugin: inappropriate log message label

Hello everybody, 

This is just a detail and does not affect the execution of the plugin, but before running the dev mode with gwt-maven-plugin the console displays several [ERROR] messages even if they seem more like [INFO] messages : 

[ERROR] 2016-09-04 12:49:51.423:INFO::main: Logging initialized @5842ms

[INFO]    Loading Java files in com.gwidgets.GwtyLeafletStarter.

[INFO]    Module setup completed in 8747 ms

[ERROR] 2016-09-04 12:49:57.447:INFO:oejs.Server:main: jetty-9.2.14.v20151106

[ERROR] 2016-09-04 12:49:57.523:INFO:oejsh.ContextHandler:main: Started o.e.j.s.ServletContextHandler@757908d8{/,null,AVAILABLE}

[ERROR] 2016-09-04 12:49:57.565:INFO:oejs.ServerConnector:main: Started ServerConnector@1432a683{HTTP/1.1}{127.0.0.1:9876}

[ERROR] 2016-09-04 12:49:57.567:INFO:oejs.Server:main: Started @11986ms

[INFO] 

[INFO] The code server is ready at http://127.0.0.1:9876/

[ERROR] 2016-09-04 12:49:57.910:INFO:oejs.Server:main: jetty-9.2.14.v20151106

[ERROR] 2016-09-04 12:50:13.659:INFO:oejsh.ContextHandler:main: Started c.g.g.d.s.j.WebAppContextWithReload@57cd757a{/,file:/C:/Users/zakaria/Desktop/myWork/GWidgets/workspace/gwty-leaflet-starter-guide/target/gwty-leaflet-starter-guide-0.1/,AVAILABLE}{C:\Users\zakaria\Desktop\myWork\GWidgets\workspace\gwty-leaflet-starter-guide\target\gwty-leaflet-starter-guide-0.1}

[ERROR] 2016-09-04 12:50:13.663:INFO:oejs.ServerConnector:main: Started ServerConnector@27c546b8{HTTP/1.1}{127.0.0.1:8888}

[ERROR] 2016-09-04 12:50:13.664:INFO:oejs.Server:main: Started @28083ms

shouldn't they be [INFO] ? 

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