Using a function in nested objects ---------------------------------- Key: DROOLS-1741 URL: https://issues.redhat.com/browse/DROOLS-1741 Project: Drools Issue Type: Bug Components: core engine Affects Versions: 6.5.0.Final Environment: Drools 6.5.0.Final JDK 1.8 Reporter: R D Assignee: Mario Fusco Priority: Minor Attachments: Compilation_error.PNG, Compilation_error.PNG I am working with a project with nested objects. I have a rule in which I need to make use of a function. If I use this function on a variable in a nested object it does not work (I get a compilation error): Using the nested object accessor approach (compilation error "Unable to Analyse Expression"): ObjectA( objectB. ( (someFunction(someVariable)) == 0 ) ) EDIT: The same compilation error occurs as well when just using a more complex operation on variables in nested objects as well (updated project on GitHub): ObjectA( objectB. ( (someVariable == 0 || someVariable == 1 ) || (someVariable > -1 || someVariable < 2 )) )