Compilation fails on generated model ------------------------------------ Key: DROOLS-5591 URL: https://issues.redhat.com/browse/DROOLS-5591 Project: Drools Issue Type: Bug Components: executable model Affects Versions: 7.38.0.Final, 7.39.0.Final, 7.40.0.Final, 7.41.0.Final, 7.42.0.Final Reporter: Ciprian Chiru Assignee: Luca Molteni Priority: Major Given the following rule: {code:java} import java.util.Map; import java.util.List; global java.util.Set controlSet; global org.example.drools.service.DummyService dummyService; rule "will execute per each Measurement having ID color" no-loop when $m: Measurement( id == "color", $colorVal : val ) String() from dummyService.dummy($m.getId(), $m.getVal()) then controlSet.add($colorVal); end{code}   Compiling the generated model throws: {code:java} [...]/drools-model-compiler/main/java/defaultpkg/Rules6348cbea36f646fc98d4712bf48686c6RuleMethods0.java:[25,111] no suitable method found for from(org.drools.model.Global<org.example.drools.service.DummyService>,org.drools.model.Variable<org.example.drools.model.Measurement>,org.drools.model.Variable<org.example.drools.model.Measurement>,defaultpkg.P6C.LambdaExtractor6C9C4CCEE9EF61AD2FF71F545BAC12C2) [ERROR] method org.drools.model.DSL.<T>from(T) is not applicable [ERROR] (cannot infer type-variable(s) T [ERROR] (actual and formal argument lists differ in length)) [ERROR] method org.drools.model.DSL.<T>from(org.drools.model.Variable<T>) is not applicable [ERROR] (cannot infer type-variable(s) T [ERROR] (actual and formal argument lists differ in length)) [ERROR] method org.drools.model.DSL.<T>from(org.drools.model.functions.Function0<T>) is not applicable [ERROR] (cannot infer type-variable(s) T [ERROR] (actual and formal argument lists differ in length)) [ERROR] method org.drools.model.DSL.<T>from(org.drools.model.Variable<T>,org.drools.model.functions.Function1<T,?>) is not applicable [ERROR] (cannot infer type-variable(s) T [ERROR] (actual and formal argument lists differ in length)) [ERROR] method org.drools.model.DSL.<A,B>from(org.drools.model.Variable<A>,org.drools.model.Variable<B>,org.drools.model.functions.Function2<A,B,?>) is not applicable [ERROR] (cannot infer type-variable(s) A,B [ERROR] (actual and formal argument lists differ in length)) [ERROR] method org.drools.model.DSL.<A,B,C>from(org.drools.model.Variable<A>,org.drools.model.Variable<B>,org.drools.model.Variable<C>,org.drools.model.functions.Function3<A,B,C,?>) is not applicable [ERROR] (cannot infer type-variable(s) A,B,C [ERROR] (argument mismatch; defaultpkg.P6C.LambdaExtractor6C9C4CCEE9EF61AD2FF71F545BAC12C2 cannot be converted to org.drools.model.functions.Function3<A,B,C,?>)) [ERROR] method org.drools.model.DSL.<A,B,C,D>from(org.drools.model.Variable<A>,org.drools.model.Variable<B>,org.drools.model.Variable<C>,org.drools.model.Variable<D>,org.drools.model.functions.Function4<A,B,C,D,?>) is not applicable [ERROR] (cannot infer type-variable(s) A,B,C,D [ERROR] (actual and formal argument lists differ in length)){code}   This error occurs as well with drools version _7.43.0-SNAPSHOT_