--- plexus-archiver-plexus-archiver-3.6.0/src/test/java/org/codehaus/plexus/archiver/DuplicateFilesTest.java	2018-05-06 14:13:22.000000000 +0200
+++ plexus-archiver-plexus-archiver-3.6.0/src/test/java/org/codehaus/plexus/archiver/DuplicateFilesTest.java	2019-03-08 07:35:58.658910163 +0100
@@ -31,7 +31,7 @@
         throws Exception
     {
         super.setUp();
-        getContainer().getLoggerManager().setThreshold( Logger.LEVEL_DEBUG );
+        ((org.codehaus.plexus.DefaultPlexusContainer)getContainer()).getLoggerManager().setThreshold( Logger.LEVEL_DEBUG );
     }
 
     public void testZipArchiver()