ObjectDataCompiler converter does not compile all template rules ---------------------------------------------------------------- Key: DROOLS-5655 URL: https://issues.redhat.com/browse/DROOLS-5655 Project: Drools Issue Type: Bug Reporter: Oualid AMCHAYD Assignee: Mario Fusco Priority: Major Attachments: image-2020-09-18-11-31-28-879.png When trying to compile a rule template with a datasource, the compilers does not compiles  the rows with empty fields. Here is the code I am using: {code:java} ObjectDataCompiler converter = new ObjectDataCompiler(); Collection<MyRule> rulesRep = rulerepo.findAll(); InputStream personInputStream = null; try { personInputStream = ResourceFactory.newClassPathResource("rules.drt").getInputStream(); // convert sample.drt in resource to input stream } catch (IOException e) { e.printStackTrace(); } KieFileSystem kieFileSystem = kieServices.newKieFileSystem(); String personDrl = converter.compile(rulesRep, personInputStream); kieFileSystem.write("src/main/resources/person_rule.drl", kieServices.getResources().newReaderResource(new StringReader(personDrl))); {code} This is my datasource, which have two empty fields in two rows. !image-2020-09-18-11-31-28-879.png! And this is the result i got for the two rows with an empty fields : {code:java} rule "ageRule_1" when then $person.setStatus("Infant"); end rule "ageRule_8" when then $person.setStatus("Old Aged"); end {code}  As you see the LHS are is generated in two rules. Am i missing something or this is a normal  behaviour when having empty fields. Thanks in advance.