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Bug
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Resolution: Done
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Major
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7.5.0.GA, 7.5.1.GA, 7.6.0.GA, 7.7.0.GA, 7.7.1.GA, 7.8.0.GA, 7.8.1.GA, 7.9.0.GA
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This issue is found on RHDM 7.5.0 to RHDM 7.9.0.
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False
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False
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Release Notes
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CR1
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+
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Undefined
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2020 Week 52-03 (from Dec 21), 2021 Week 07-09 (from Feb 15)
Building a rule written in MVEL dialect like (*1) that accesses to a Map element and bind the value to a variable (*1-1) in executable rule model, compilation errors occur. The error messages are varied depending on RHDM version. (*2-1), (*2-2), (*2-3) are the error messages on 7.5.0 to 7.6.0, 7.7.0 to 7.7.1, 7.8.0 to 7.9.0 respectively.
(*1)
package com.example.reproducer
import com.example.reproducer.Car
dialect "mvel"
rule "rule1a1"
when
$car : Car( $spec : specifications["transmission"] ) // ..... (*1-1)
then
System.out.println("***** Action of rule1a1");
System.out.println("***** $car: " + $car + ", transmission specification = " + $spec);
end
Where specifications is a Map<String, Object> type property. Even if the type is Map<String, String> (rule "rule1a2" in Sample.drl), the same error occurs as well.
(*2-1) Error messages on RHDM 7.5.0 to 7.6.0
[ERROR] /work2/testdir/reproducer_mc_1a1_1a2/target/generated-sources/drools-model-compiler/main/java/com/example/reproducer/Rules99a3451765bf47d5beed5aa17ec5250eRuleMethods0.java:[27,86] incompatible types: inference variable A has incompatible bounds
equality constraints: java.util.Map
lower bounds: java.lang.Object
[ERROR] /work2/testdir/reproducer_mc_1a1_1a2/target/generated-sources/drools-model-compiler/main/java/com/example/reproducer/Rules99a3451765bf47d5beed5aa17ec5250eRuleMethods0.java:[27,61] method build in class org.drools.model.impl.RuleBuilder cannot be applied to given types;
required: org.drools.model.RuleItemBuilder<?>[]
found: <any>,org.drools.model.consequences.ConsequenceBuilder._2<com.example.reproducer.Car,java.util.Map>
reason: varargs mismatch; inference variable A has incompatible bounds
equality constraints: java.util.Map
lower bounds: java.lang.Object
(*2-2) Error messages on RHDM 7.7.0 to 7.7.1
[ERROR] /work2/testdir/reproducer_mc_1a1_1a2/target/generated-sources/drools-model-compiler/main/java/com/example/reproducer/Rules4931e491d49648edb0d8704c825666f7RuleMethods0.java:[27,80] no suitable method found for bind(org.drools.model.Variable<java.util.Map>,(com.examp[...]ber"))
method org.drools.model.PatternDSL.PatternDef.<A>bind(org.drools.model.Variable<A>,org.drools.model.functions.Function1<com.example.reproducer.Car,A>) is not applicable
(inference variable A has incompatible bounds
equality constraints: java.util.Map
lower bounds: java.lang.String)
method org.drools.model.PatternDSL.PatternDef.<A>bind(org.drools.model.Variable<A>,org.drools.model.functions.Function1<com.example.reproducer.Car,A>,org.drools.model.PatternDSL.ReactOn) is not applicable
(cannot infer type-variable(s) A
(actual and formal argument lists differ in length))
method org.drools.model.PatternDSL.PatternDef.<A,U>bind(org.drools.model.Variable<A>,org.drools.model.Variable<U>,org.drools.model.functions.Function1<U,A>) is not applicable
(cannot infer type-variable(s) A,U
(actual and formal argument lists differ in length))
method org.drools.model.PatternDSL.PatternDef.<A,U>bind(org.drools.model.Variable<A>,org.drools.model.Variable<U>,org.drools.model.functions.Function1<U,A>,org.drools.model.PatternDSL.ReactOn) is not applicable
(cannot infer type-variable(s) A,U
(actual and formal argument lists differ in length))
method org.drools.model.PatternDSL.PatternDef.<A,U>bind(org.drools.model.Variable<A>,org.drools.model.Variable<U>,org.drools.model.functions.Function2<com.example.reproducer.Car,U,A>) is not applicable
(cannot infer type-variable(s) A,U
(actual and formal argument lists differ in length))
method org.drools.model.PatternDSL.PatternDef.<A,U>bind(org.drools.model.Variable<A>,org.drools.model.Variable<U>,org.drools.model.functions.Function2<com.example.reproducer.Car,U,A>,org.drools.model.PatternDSL.ReactOn) is not applicable
(cannot infer type-variable(s) A,U
(actual and formal argument lists differ in length))
method org.drools.model.PatternDSL.PatternDef.<A,U,V>bind(org.drools.model.Variable<A>,org.drools.model.Variable<U>,org.drools.model.Variable<V>,org.drools.model.functions.Function3<com.example.reproducer.Car,U,V,A>) is not applicable
(cannot infer type-variable(s) A,U,V
(actual and formal argument lists differ in length))
method org.drools.model.PatternDSL.PatternDef.<A,U,V>bind(org.drools.model.Variable<A>,org.drools.model.Variable<U>,org.drools.model.Variable<V>,org.drools.model.functions.Function3<com.example.reproducer.Car,U,V,A>,org.drools.model.PatternDSL.ReactOn) is not applicable
(cannot infer type-variable(s) A,U,V
(actual and formal argument lists differ in length))
method org.drools.model.PatternDSL.PatternDef.<A,U,V,W>bind(org.drools.model.Variable<A>,org.drools.model.Variable<U>,org.drools.model.Variable<V>,org.drools.model.Variable<W>,org.drools.model.functions.Function4<com.example.reproducer.Car,U,V,W,A>) is not applicable
(cannot infer type-variable(s) A,U,V,W
(actual and formal argument lists differ in length))
method org.drools.model.PatternDSL.PatternDef.<A,U,V,W>bind(org.drools.model.Variable<A>,org.drools.model.Variable<U>,org.drools.model.Variable<V>,org.drools.model.Variable<W>,org.drools.model.functions.Function4<com.example.reproducer.Car,U,V,W,A>,org.drools.model.PatternDSL.ReactOn) is not applicable
(cannot infer type-variable(s) A,U,V,W
(actual and formal argument lists differ in length))
(*2-3) Error messages on RHDM 7.8.0 to 7.9.0
[ERROR] /work2/testdir/reproducer_mc_1a1_1a2/target/generated-sources/drools-model-compiler/main/java/com/example/reproducer/PBE/LambdaExtractorBE8AE82BEE077650A708E067B870D9AE.java:[17,45] incompatible types: java.lang.Object cannot be converted to java.util.Map
- is cloned by
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- Closed
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