Java – log4j:ERROR A “org.apache.log4j.ConsoleAppender” object is not assignable to a “org.apache.log4j.Appender” variable

exceptiongradlejavalog4jlogging

I am making a web app using gradle. I used log4j in this app. When I build the project I am getting error…

  • 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.powermock.core.classloader.MockClassLoader@16a40b2] whereas object of type
  • log4j:ERROR "org.apache.log4j.ConsoleAppender" was loaded by [sun.misc.Launcher$AppClassLoader@5e3a78ad].
  • log4j:ERROR Could not instantiate appender named "stdout".

I still did not find a good answer. And I forgot to say, My project build correctly and show log massages correctly. It doesn't work only on test classes.

Best Answer

Adding this annotation works for me.

@PowerMockIgnore("org.apache.log4j.*")
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