anchor.diff:  * JPROXYSH_CACHE_CLASS_FOLDER : defines where to save the .class files resulting of compiling on the fly the scripting code, this folder is automatically added to the class path, 
   so when the script is loaded the second time the .class are used instead of source code according to the typical source-binary timestamp rules (if source code is more recent the 
   class is ignored and replaced with a new file).
  -* JPROXYSH_COMPILATION_OPTIONS : compilations passed to the JDK compiler, the format is the same as the command line +javac+.
  -
  -The following is an example of shell code (into a script file) to execute the previous +example_java_shell+, this example is included in RelProxy distribution:
  +* JPROXYSH_COMPILATION_OPTIONS : compilations passed to the JDK compiler, the format is the same as the command line `javac`.
  +
  +The following is an example of shell code (into a script file) to execute the previous `example_java_shell`, this example is included in RelProxy distribution:
   
   [source,sh]
   .ex_java_shell_launcher.sh
  
positive.code: 
  ----
  
  This class is a servlet created to receive RPC requests from client following the interface pattern of the interface +GreetingService+ shared by client code, 
  we are not going to try to reload this servlet because to use JProxy we need a reloadable singleton implementing an interface registered in JProxy.
  We are deeply transforming +GreetingServiceImpl+:
  
  [source,java]
  .GreetingServiceImpl.java
  
negative.code:         String inputPath = realPath + "/WEB-INF/javaex/code/";
  ----
  
  The variable `inputPath` contains the path to be configured as `Default target folder` in this example.
  
  Sometimes the Filesync Plugin seems to fail, in this case you can need to force synchronization:
  
  image:filesync_force_file_sync.png[Force File Synchronization, title="Force File Synchronization"]
  
  An alternative is manual synchronization of files under `/WEB-INF` executing a custom Ant script like this:
  
  [source,xml]
  ----
  