[rules-dev] SessionConfiguration implementation issues

Hi all, I'm working on drools spring and I've come upon some issues in SessionConfiguration that are stopping/confusing me. Here are my lists of doubts/concerns about SessionConfiguration: 1) It stores 2 properties using Option instances variables and the rest inside a ChainedProperties class. 2) There is no way no way to know what props are in the ChainedProperties from outside the SessionConfiguration. 3) When the SessionConfiguration is immutable, it's still possible to add more Properties using the addProperties method. 4) The ChainedProperties class is add only, in other words it isn't possible change props values. Moreover it's also possible to have two props with different values. I'm attaching a patch that fix some these issues. I've updated SessionConfiguration (g|s)etProperty(String name) method and added the ability to ChainedProperties update existing props. WDYT? -- Bauna