--- a/java.rst	Mon Jan 20 18:45:57 2020 +0200
+++ b/java.rst	Mon Jan 20 18:52:27 2020 +0200
@@ -129,6 +129,13 @@
 http://java.sun.com/performance/reference/whitepapers/5.0_performance.html
 http://java.sun.com/performance/reference/whitepapers/6_performance.html
 
+Java flags
+==========
+
+List of all supported flags by ``java``::
+
+  java -XX:+PrintFlagsFinal -version
+
 Creating jar.
 =============
 ::