嘗試映射我的域對象時，出現以下StackOverflowError異常。我試圖忽略導致循環依賴的屬性無濟於事。映射處理器中的內部錯誤：java.lang.StackOverflowError
我的領域模型的中心是WorkoutSet，它有一個用戶和一個練習。
如果我從WorkoutSetMapper中移除了映射註釋，那麼將按照預期生成UserMapperImpl和ExerciseMapperImpl。
Error:(15, 1) java: Internal error in the mapping processor: java.lang.StackOverflowError at com.sun.tools.javac.code.Type$ClassType.accept(Type.java:786) at com.sun.tools.javac.code.Types$UnaryVisitor.visit(Types.java:4652) at com.sun.tools.javac.code.Types.supertype(Types.java:2315) at com.sun.tools.javac.code.Types$13.visitClassType(Types.java:1966) at com.sun.tools.javac.code.Types$13.visitClassType(Types.java:1955) at com.sun.tools.javac.code.Type$ClassType.accept(Type.java:786) at com.sun.tools.javac.code.Types$DefaultTypeVisitor.visit(Types.java:4571) at com.sun.tools.javac.code.Types.asSuper(Types.java:1952) at com.sun.tools.javac.code.Types$13.visitClassType(Types.java:1968) at com.sun.tools.javac.code.Types$13.visitClassType(Types.java:1955) at com.sun.tools.javac.code.Type$ClassType.accept(Type.java:786) at com.sun.tools.javac.code.Types$DefaultTypeVisitor.visit(Types.java:4571) at com.sun.tools.javac.code.Types.asSuper(Types.java:1952) at com.sun.tools.javac.code.Types$13.visitClassType(Types.java:1975) at com.sun.tools.javac.code.Types$13.visitClassType(Types.java:1955) at com.sun.tools.javac.code.Type$ClassType.accept(Type.java:786) at com.sun.tools.javac.code.Types$DefaultTypeVisitor.visit(Types.java:4571) at com.sun.tools.javac.code.Types.asSuper(Types.java:1952) at com.sun.tools.javac.code.Types$13.visitClassType(Types.java:1975) at com.sun.tools.javac.code.Types$13.visitClassType(Types.java:1955) at com.sun.tools.javac.code.Type$ClassType.accept(Type.java:786) at com.sun.tools.javac.code.Types$DefaultTypeVisitor.visit(Types.java:4571) at com.sun.tools.javac.code.Types.asSuper(Types.java:1952) at com.sun.tools.javac.code.Types$13.visitClassType(Types.java:1975) at com.sun.tools.javac.code.Types$13.visitClassType(Types.java:1955) at com.sun.tools.javac.code.Type$ClassType.accept(Type.java:786) at com.sun.tools.javac.code.Types$DefaultTypeVisitor.visit(Types.java:4571) at com.sun.tools.javac.code.Types.asSuper(Types.java:1952) at com.sun.tools.javac.code.Types$4.visitClassType(Types.java:921) at com.sun.tools.javac.code.Types$4.visitClassType(Types.java:844) at com.sun.tools.javac.code.Type$ClassType.accept(Type.java:786) at com.sun.tools.javac.code.Types$DefaultTypeVisitor.visit(Types.java:4571) at com.sun.tools.javac.code.Types.isSubtype(Types.java:840) at com.sun.tools.javac.code.Types.isSubtype(Types.java:804) at com.sun.tools.javac.model.JavacTypes.isSubtype(JavacTypes.java:98) at org.mapstruct.ap.internal.util.workarounds.SpecificCompilerWorkarounds.isSubtype(SpecificCompilerWorkarounds.java:76) at org.mapstruct.ap.internal.util.workarounds.TypesDecorator.isSubtype(TypesDecorator.java:68) at org.mapstruct.ap.internal.model.common.Type.isSubType(Type.java:638) at org.mapstruct.ap.internal.model.common.Type.isCollection(Type.java:628) at org.mapstruct.ap.internal.model.common.Type.isCollectionOrMap(Type.java:624) at org.mapstruct.ap.internal.model.common.Type.getAlternativeTargetAccessors(Type.java:598) at org.mapstruct.ap.internal.model.common.Type.getPropertyWriteAccessors(Type.java:419) at org.mapstruct.ap.internal.model.source.TargetReference$BuilderFromTargetMapping.getTargetEntries(TargetReference.java:144) at org.mapstruct.ap.internal.model.source.TargetReference$BuilderFromTargetMapping.build(TargetReference.java:120) at org.mapstruct.ap.internal.model.source.Mapping.init(Mapping.java:227) at org.mapstruct.ap.internal.model.source.SourceMethod$Builder.build(SourceMethod.java:207) at org.mapstruct.ap.internal.processor.MethodRetrievalProcessor.getMethodRequiringImplementation(MethodRetrievalProcessor.java:257) at org.mapstruct.ap.internal.processor.MethodRetrievalProcessor.getMethod(MethodRetrievalProcessor.java:193) at org.mapstruct.ap.internal.processor.MethodRetrievalProcessor.retrieveMethods(MethodRetrievalProcessor.java:148) at org.mapstruct.ap.internal.processor.MethodRetrievalProcessor.retrieveMethods(MethodRetrievalProcessor.java:163) at org.mapstruct.ap.internal.processor.MethodRetrievalProcessor.retrieveMethods(MethodRetrievalProcessor.java:163) at org.mapstruct.ap.internal.processor.MethodRetrievalProcessor.retrieveMethods(MethodRetrievalProcessor.java:163) at org.mapstruct.ap.internal.processor.MethodRetrievalProcessor.retrieveMethods(MethodRetrievalProcessor.java:163) at org.mapstruct.ap.internal.processor.MethodRetrievalProcessor.retrieveMethods ...
我的域類如下
@Entity
public class User implements FirstClassDomainObject {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;
private String name;
private String email;
...
@Entity
public class Exercise implements FirstClassDomainObject {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;
private String name;
private String description;
...
@Entity
public class WorkoutSet implements FirstClassDomainObject {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;
private int repetition;
private double wight;
private LocalDateTime timestamp;
@ManyToOne
private Exercise exercise;
@ManyToOne
private User user;
...
我DTO類如下
public class UserResource implements ResourceObject {
private Long id;
private String name;
private String email;
...
public class ExerciseResource implements ResourceObject {
private String name;
private String description;
...
public class WorkoutSetResource implements ResourceObject {
private int repetition;
private double wight;
@JsonSerialize(using = LocalDateTimeSerializer.class)
private LocalDateTime timestamp;
private ExerciseResource exercise;
private UserResource user;
...
我的映射器接口是如下
@Mapper(componentModel = "spring")
interface UserMapper extends ClassMapper<User, UserResource> {
@Override
default List<Class<?>> getSupportedClasses() {
return Lists.newArrayList(User.class, UserResource.class);
}
}
@Mapper(componentModel = "spring")
interface ExerciseMapper extends ClassMapper<Exercise, ExerciseResource> {
@Override
default List<Class<?>> getSupportedClasses() {
return Lists.newArrayList(Exercise.class, ExerciseResource.class);
}
}
@Mapper(componentModel = "spring", uses = {UserMapper.class, WorkoutSetMapper.class})
interface WorkoutSetMapper extends ClassMapper<WorkoutSet, WorkoutSetResource> {
@Override
default List<Class<?>> getSupportedClasses() {
return Lists.newArrayList(WorkoutSet.class, WorkoutSetResource.class);
}
}
的ClassMapper被定義如下
public interface ClassMapper<D extends DomainObject, R extends ResourceObject> {
R map(D domainObject);
D map(R resourceObject);
List<Class<?>> getSupportedClasses();
}
我已經離開了getter和setter方法，以避免文字的牆上，但整個代碼庫都可以在這裏找到https://github.com/tonsV2/Lift-Log-Backend。 關於我做錯了什麼的線索？
看起來你有你的對象 –
呀循環引用，但我怎麼防止mapstruct從以下呢？ – user672009
我不知道。我只是不認爲你應該有一個用戶持有一套鍛鍊，而這又反過來指向擁有它們的用戶。類似於練習。 –