Exception thrown when mapping from nested Record field

[icod]

Expected behavior

In MapStruct 1.6.0, it used to be possible to map from a nested Record, but this results in an exception in version 1.6.1.

Actual behavior

No code is generated by MapStruct; a ClassCastException is thrown:

Internal error in the mapping processor: java.lang.ClassCastException: class com.sun.tools.javac.code.Symbol$RecordComponent cannot be cast to class javax.lang.model.element.ExecutableElement (com.sun.tools.javac.code.Symbol$RecordComponent is in module jdk.compiler of loader 'app'; javax.lang.model.element.ExecutableElement is in module java.compiler of loader 'platform')
  	at org.mapstruct.ap.internal.model.common.TypeFactory.getThrownTypes(TypeFactory.java:494)
  	at org.mapstruct.ap.internal.model.NestedPropertyMappingMethod$Builder.build(NestedPropertyMappingMethod.java:75)
  	at org.mapstruct.ap.internal.model.PropertyMapping$PropertyMappingBuilder.getSourceRHS(PropertyMapping.java:641)
  	at org.mapstruct.ap.internal.model.PropertyMapping$PropertyMappingBuilder.build(PropertyMapping.java:232)
  	at org.mapstruct.ap.internal.model.BeanMappingMethod$Builder.handleDefinedMapping(BeanMappingMethod.java:1474)
  	at org.mapstruct.ap.internal.model.BeanMappingMethod$Builder.handleDefinedMappings(BeanMappingMethod.java:1165)
  	at org.mapstruct.ap.internal.model.BeanMappingMethod$Builder.build(BeanMappingMethod.java:292)
  	at org.mapstruct.ap.internal.processor.MapperCreationProcessor.getMappingMethods(MapperCreationProcessor.java:427)
  	at org.mapstruct.ap.internal.processor.MapperCreationProcessor.getMapper(MapperCreationProcessor.java:188)
  	at org.mapstruct.ap.internal.processor.MapperCreationProcessor.process(MapperCreationProcessor.java:142)
  	at org.mapstruct.ap.internal.processor.MapperCreationProcessor.process(MapperCreationProcessor.java:85)
  	at org.mapstruct.ap.MappingProcessor.process(MappingProcessor.java:400)
  	at org.mapstruct.ap.MappingProcessor.processMapperTypeElement(MappingProcessor.java:380)
  	at org.mapstruct.ap.MappingProcessor.processMapperElements(MappingProcessor.java:329)
  	at org.mapstruct.ap.MappingProcessor.process(MappingProcessor.java:213)
  	... 

Steps to reproduce the problem

I am using Temurin JDK 21.0.4.7-hotspot

public record MyRecord(String value) {}

public record Source(MyRecord myRecord) {}

public class Target {
    String targetValue;

    public Target(String targetValue) {
        this.targetValue = targetValue;
    }
}

Consider the following mapper:

@Mapper(componentModel = SPRING)
public interface MyNestedRecordMapper {

    @Mapping(source = "source.myRecord.value", target = "targetValue")
    Target mapToTarget(Source source);
}

Note that this is a mapper to illustrate the problem. In our project we use a mapper that take another input parameter (a String) and maps that directly onto the target object (POJO), so I hope that explains why I would define a seperate mapper for the nested record.

MapStruct Version

MapStruct 1.6.1

[filiphr]

@icod this is already fixed with 1.6.2. See #3717. We had a regression, so we did a fix immediatelly after that.

[icod]

@filiphr Oh wow, that's fast!