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

Status: Open.

#4111 In mapstruct/mapstruct;

· surecloud-jleite opened

on Aug 14, 2026

Be able to generate the nullable mapping from the NotNull mapping

Status: Open.

#4106 In mapstruct/mapstruct;

· pkernevez opened

on Aug 4, 2026

Strategy to check at runtime the null value with JSpecifiy

Status: Open.

#4105 In mapstruct/mapstruct;

· pkernevez opened

on Aug 4, 2026

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

Status: Open.

#4104 In mapstruct/mapstruct;

· pkernevez opened

on Aug 4, 2026

Silent default mapping on conflicting ignore properties flags

bug

Status: Open.

#4094 In mapstruct/mapstruct;

· Eliiona opened

on Jul 14, 2026

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

bug

JSpecify

Status: Open.

#4086 In mapstruct/mapstruct;

· RaniAgus opened

on Jul 4, 2026

·

 

1.7.0.RC1

Java21 SequencedCollection::getFirst support

enhancement

Status: Open.

#4082 In mapstruct/mapstruct;

· jbidet-adis opened

on Jun 29, 2026

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

bug

JSpecify

Status: Open.

#4081 In mapstruct/mapstruct;

· RaniAgus opened

on Jun 28, 2026

·

 

1.7.0.RC1

JSpecify: Missing null check before reusing non-nullable method

bug

JSpecify

Status: Open.

#4077 In mapstruct/mapstruct;

· RaniAgus opened

on Jun 28, 2026

·

 

1.7.0.RC1

JSpecify: Propagate nullability annotations to mapper implementation

bug

JSpecify

Status: Open.

#4076 In mapstruct/mapstruct;

· RaniAgus opened

on Jun 27, 2026

·

 

1.7.0.RC1

Parallel source and target traversal with @ParallelSource

Status: Open.

#4066 In mapstruct/mapstruct;

· wernerdegroot opened

on Jun 6, 2026

Mapstruct mapping incorrect properties when one of them is supporting adder

bug

Status: Open.

#4038 In mapstruct/mapstruct;

· altaiezior opened

on Apr 19, 2026