Issues

Issues

• Add built in conversion between java.time OffsetDateTime and OffsetTime and String

  mapstruct/mapstruct#4154 · opened on Nov 10, 2026

• Adder not working together with expression

  mapstruct/mapstruct#4145 · opened on Oct 29, 2026
  2

• Generate a machine-readable report of resolved mapper field mappings

  mapstruct/mapstruct#4143 · opened on Oct 25, 2026

• Empty Optional nested source in an update mapping does not clear the target and creates an empty nested target

  mapstruct/mapstruct#4141 · opened on Oct 18, 2026

• ProcessorTests are currently unable to reload Mapper implementation class

  mapstruct/mapstruct#4132 · opened on Sep 19, 2026

• NullValuePropertyMappingStrategy.IGNORE strategy ignored for Optional fields

  mapstruct/mapstruct#4128 · opened on Sep 16, 2026
  2

• Optional source property that is itself null throws NullPointerException on the generated isPresent() check; NullValueCheckStrategy.ALWAYS is ignored

  mapstruct/mapstruct#4123 · opened on Sep 9, 2026
  1

• Collections no longer copied if marked non-null

  mapstruct/mapstruct#4118 · opened on Aug 25, 2026

• Optional<Map> / Optional<Collection> source property generates unguarded Optional#get, throwing NoSuchElementException when empty

  mapstruct/mapstruct#4111 · opened on Aug 14, 2026
  2

• Be able to generate the nullable mapping from the NotNull mapping

  mapstruct/mapstruct#4106 · opened on Aug 4, 2026

• Strategy to check at runtime the null value with JSpecifiy

  mapstruct/mapstruct#4105 · opened on Aug 4, 2026
  1

• Do not return null when the return value is kown to be @Notnull

  mapstruct/mapstruct#4104 · opened on Aug 4, 2026

• Silent default mapping on conflicting ignore properties flags

  mapstruct/mapstruct#4094 · opened on Jul 14, 2026
  1

• JSpecify: False positive error for nullable source with nullable-param non-null-return method

  mapstruct/mapstruct#4086 · opened on Jul 4, 2026 · 1.7.0.RC1
  1

• Java21 SequencedCollection::getFirst support

  mapstruct/mapstruct#4082 · opened on Jun 29, 2026

• JSpecify: Missing compile error when reused method returns @Nullable to @NonNull constructor

  mapstruct/mapstruct#4081 · opened on Jun 28, 2026 · 1.7.0.RC1

• JSpecify: Missing null check before reusing non-nullable method

  mapstruct/mapstruct#4077 · opened on Jun 28, 2026 · 1.7.0.RC1

• JSpecify: Propagate nullability annotations to mapper implementation

  mapstruct/mapstruct#4076 · opened on Jun 27, 2026 · 1.7.0.RC1
  4

• Parallel source and target traversal with @ParallelSource

  mapstruct/mapstruct#4066 · opened on Jun 6, 2026
  2

• Mapstruct mapping incorrect properties when one of them is supporting adder

  mapstruct/mapstruct#4038 · opened on Apr 19, 2026
  6

• @Condition applied on wrong source parameter while mapping

  mapstruct/mapstruct#4037 · opened on Apr 16, 2026 · 1.7.x
  1

• Decide whether or not we should mark generated code with JSpecify annotations

  mapstruct/mapstruct#4036 · opened on Apr 13, 2026 · 1.7.x
  1

• Review JSpecify nullness on type user array elements and lists

  mapstruct/mapstruct#4035 · opened on Apr 13, 2026 · 1.7.x
  3

• Cache Type instances in TypeFactory.getType(...) to avoid redundant work

  mapstruct/mapstruct#4034 · opened on Apr 13, 2026
  1

• Getters can be computed twice when nullValueCheckStrategy = NullValueCheckStrategy.ALWAYS

  mapstruct/mapstruct#4030 · opened on Apr 8, 2026