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Created attachment 109054 [details] The ide log file Every time NB starts I find this message in the ide log file: --- log4j:ERROR A "org.apache.log4j.RollingFileAppender" object is not assignable to a "org.apache.log4j.Appender" variable. log4j:ERROR The class "org.apache.log4j.Appender" was loaded by log4j:ERROR [org.netbeans.modules.j2ee.jboss4.JBDeploymentFactory$JBClassLoader@5183093c] whereas object of type log4j:ERROR "org.apache.log4j.RollingFileAppender" was loaded by [ModuleCL@3bfc47[org.netbeans.modules.html.validation]]. log4j:ERROR Could not instantiate appender named "default". log4j:ERROR A "org.apache.log4j.ConsoleAppender" object is not assignable to a "org.apache.log4j.Appender" variable. log4j:ERROR The class "org.apache.log4j.Appender" was loaded by log4j:ERROR [org.netbeans.modules.j2ee.jboss4.JBDeploymentFactory$JBClassLoader@5183093c] whereas object of type log4j:ERROR "org.apache.log4j.ConsoleAppender" was loaded by [ModuleCL@3bfc47[org.netbeans.modules.html.validation]]. log4j:ERROR Could not instantiate appender named "stdout". log4j:WARN No appenders could be found for logger (org.jboss.deployment.spi.factories.DeploymentFactoryImpl). log4j:WARN Please initialize the log4j system properly. ---
Looks like some kind of a conflict between the HTML functionality and the JBoss plugin - although I can not reproduce on my machine. Petr and Marek, can you please investigate?
Report from old NetBeans version. Due to code changes since it was reported likely not reproducible now. Feel free to reopen if happens in 8.0.2 or 8.1.