"NoSuchElementException: No value present" with executable-model, Map and binding

rule R1
  when
    $p : Person()
    $a : Address(number == $p.items[1])
  then
end

[ERROR] Tests run: 165, Failures: 0, Errors: 2, Skipped: 3, Time elapsed: 20.794 s <<< FAILURE! - in org.drools.modelcompiler.CompilerTest
[ERROR] testMapWithBinding[FLOW_DSL](org.drools.modelcompiler.CompilerTest)  Time elapsed: 0.02 s  <<< ERROR!
java.util.NoSuchElementException: No value present
	at java.util.Optional.get(Optional.java:135)
	at org.drools.modelcompiler.builder.generator.expressiontyper.ExpressionTyper.toTypedExpressionFromMethodCallOrField(ExpressionTyper.java:397)
	at org.drools.modelcompiler.builder.generator.expressiontyper.ExpressionTyper.toTypedExpressionRec(ExpressionTyper.java:211)
	at org.drools.modelcompiler.builder.generator.expressiontyper.ExpressionTyper.toTypedExpression(ExpressionTyper.java:108)
	at org.drools.modelcompiler.builder.generator.drlxparse.ConstraintParser.parseBinaryExpr(ConstraintParser.java:295)
	at org.drools.modelcompiler.builder.generator.drlxparse.ConstraintParser.getDrlxParseResult(ConstraintParser.java:111)
	at org.drools.modelcompiler.builder.generator.drlxparse.ConstraintParser.drlxParse(ConstraintParser.java:78)
	at org.drools.modelcompiler.builder.generator.visitor.pattern.PatternDSL.findAllConstraint(PatternDSL.java:124)
	at org.drools.modelcompiler.builder.generator.visitor.pattern.PatternDSL.buildPattern(PatternDSL.java:191)
	at org.drools.modelcompiler.builder.generator.visitor.ModelGeneratorVisitor.visit(ModelGeneratorVisitor.java:128)
	at org.drools.compiler.lang.descr.PatternDescr.accept(PatternDescr.java:267)
	at org.drools.modelcompiler.builder.generator.visitor.AndVisitor.visit(AndVisitor.java:29)
	at org.drools.modelcompiler.builder.generator.visitor.ModelGeneratorVisitor.visit(ModelGeneratorVisitor.java:69)
	at org.drools.modelcompiler.builder.generator.ModelGenerator.processRule(ModelGenerator.java:174)
	at org.drools.modelcompiler.builder.generator.ModelGenerator.generateModel(ModelGenerator.java:154)
	at org.drools.modelcompiler.builder.ModelBuilderImpl.compileKnowledgePackages(ModelBuilderImpl.java:144)
	at org.drools.modelcompiler.builder.ModelBuilderImpl.buildRules(ModelBuilderImpl.java:94)
	at org.drools.modelcompiler.builder.ModelBuilderImpl.buildPackages(ModelBuilderImpl.java:63)
	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:108)
	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:100)
	at org.drools.compiler.kie.builder.impl.AbstractKieProject.buildKnowledgePackages(AbstractKieProject.java:257)
	at org.drools.compiler.kie.builder.impl.AbstractKieProject.verify(AbstractKieProject.java:74)
	at org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildKieProject(KieBuilderImpl.java:267)
	at org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildAll(KieBuilderImpl.java:235)
	at org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildAll(KieBuilderImpl.java:204)
	at org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildAll(KieBuilderImpl.java:192)
	at org.drools.modelcompiler.BaseModelTest.createKieBuilder(BaseModelTest.java:142)
	at org.drools.modelcompiler.BaseModelTest.createKieBuilder(BaseModelTest.java:125)
	at org.drools.modelcompiler.BaseModelTest.getKieContainer(BaseModelTest.java:114)
	at org.drools.modelcompiler.BaseModelTest.getKieContainer(BaseModelTest.java:107)
	at org.drools.modelcompiler.BaseModelTest.getKieSession(BaseModelTest.java:103)
	at org.drools.modelcompiler.BaseModelTest.getKieSession(BaseModelTest.java:99)
	at org.drools.modelcompiler.CompilerTest.testMapWithBinding(CompilerTest.java:1457)
	...