--- a/java.rst	Tue Nov 25 20:31:12 2014 +0200
+++ b/java.rst	Sat Nov 29 18:52:05 2014 +0200
@@ -184,6 +184,17 @@
 
   $ kill -QUIT $PID
 
+Debug class loading.
+====================
+
+To dump class loading and unloading to ``System.out`` add to ``java`` opts::
+
+  $ java -XX:+TraceClassLoading -XX:+TraceClassUnloading ...
+  $ java -verbose:class ...
+
+To review loaded classes explore heap dump in ``visualvm`` (visit "Classes"
+tab).
+
 Find jar by class.
 ==================