Fixes #5281

Added work module to create work directory
reviewed by janbartel

jetty-server/src/main/config/modules/resources.mod

@@ -1,7 +1,7 @@
 # DO NOT EDIT - See: https://www.eclipse.org/jetty/documentation/current/startup-modules.html
 
 [description]
-Adds the $JETTY_HOME/resources and/or $JETTY_BASE/resources directory to the server classpath. 
+Adds the $JETTY_BASE/resources directory to the server classpath.
 Useful for configuration property files (eg jetty-logging.properties)
 
 [tags]

jetty-server/src/main/config/modules/work.mod

@@ -0,0 +1,14 @@
+# DO NOT EDIT - See: https://www.eclipse.org/jetty/documentation/current/startup-modules.html
+
+[description]
+Creates the $JETTY_BASE/work directory as a persistent temp directory.
+If a work directory exists, it is used for context temp directories, but
+they are persisted between runs of Jetty, so generated files (eg JSPs)
+can be kept.
+
+[tags]
+server
+
+[files]
+work/
+

tests/test-webapps/test-jetty-webapp/src/main/config/modules/demo.mod

@@ -11,6 +11,7 @@ Configure the Jetty Demo base.
 rewrite
 jaas
 test-keystore
+work
 
 [tags]
 demo