slf4j issue while doing tomcatRunWar for gradle tomcat plugin about gradle-tomcat-plugin

[andreparodi]

I have same problem. Here is the stack trace on running gradle tomcatRun

Context [/LevelManager] startup failed due to previous errors Exception sending context destroyed event to listener instance of class org.springframework.web.context.ContextLoaderListener java.lang.LinkageError: loader constraint violation: when resolving method "org.slf4j.impl.StaticLoggerBinder.getLoggerFactory()Lorg/slf4j/ILoggerFactory;" the class loader (instance of org/apache/catalina/loader/WebappClassLoader) of the current class, org/slf4j/LoggerFactory, and the class loader (instance of org/gradle/util/MutableURLClassLoader) for resolved class, org/slf4j/impl/StaticLoggerBinder, have different Class objects for the type org/slf4j/ILoggerFactory used in the signature at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:273) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:241) at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:156) at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:132) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:685) at org.springframework.web.context.ContextCleanupListener.<clinit>(ContextCleanupListener.java:43) at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:144) at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4721) at org.apache.catalina.core.StandardContext$4.call(StandardContext.java:5423) at org.apache.catalina.core.StandardContext$4.call(StandardContext.java:5402) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:680)

[dbanerjee]

Hi Benjamin,

Is there any update on this issue?

[bmuschko]

Sorry, no update yet. I didn't have much time to look into this. Feel free to investigate and come up with a solution. I appreciate any contributions.

[picodotdev]

I had the same problem in a Tapestry application (tapestry 5.4-alpha-10, gradle 1.6, gradle-tomcat-plugin 0.9.8), I resolved the problem adding this dependency to build.gradle:

runtime "org.slf4j:slf4j-log4j12:1.7.2"

[bmuschko]

Sounds like @picodotdev provided a solution. Closing this issue.