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#3786 Fix NPE situations and have the normal resulting message pop out. #3794

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Merged
filiphr merged 7 commits into from
Jan 24, 2025
Merged

#3786 Fix NPE situations and have the normal resulting message pop out. #3794

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4596c53
#3786: give message for primitive array return type.
Dec 21, 2024
3d6dbb8
#3786 Fixed the NPE situations instead of an additional message.
Dec 21, 2024
06c9cdb
fix checkstyle by replacing tertiary with if statement.
Dec 21, 2024
266e48c
fix checkstyle, line was still 1 character too long.
Dec 21, 2024
9330ea9
Renamed Mapper because it should not compile
Dec 21, 2024
9b41678
#3786: Added new error message for non-iterable to array mapping.
Dec 22, 2024
6b62540
#3786: revert changes to Type
Jan 23, 2025
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#3786: Added new error message for non-iterable to array mapping.
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Ben Zegveld authored and Ben Zegveld committed Dec 22, 2024
commit 9b4167865b9ca99ea1d4d7aef092d54587cad5fb
5 changes: 5 additions & 0 deletions processor/src/main/java/org/mapstruct/ap/internal/processor/MethodRetrievalProcessor.java
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Expand Up @@ -555,6 +555,11 @@ private boolean checkParameterAndReturnType(ExecutableElement method, List<Param
return false;
}

if ( !parameterType.isIterableOrStreamType() && resultType.isArrayType() ) {
messager.printMessage( method, Message.RETRIEVAL_NON_ITERABLE_TO_ARRAY );
return false;
}

if ( parameterType.isPrimitive() ) {
messager.printMessage( method, Message.RETRIEVAL_PRIMITIVE_PARAMETER );
return false;
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1 change: 1 addition & 0 deletions processor/src/main/java/org/mapstruct/ap/internal/util/Message.java
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Expand Up @@ -175,6 +175,7 @@ public enum Message {
RETRIEVAL_ITERABLE_TO_NON_ITERABLE( "Can't generate mapping method from iterable type from java stdlib to non-iterable type." ),
RETRIEVAL_MAPPING_HAS_TARGET_TYPE_PARAMETER( "Can't generate mapping method that has a parameter annotated with @TargetType." ),
RETRIEVAL_NON_ITERABLE_TO_ITERABLE( "Can't generate mapping method from non-iterable type to iterable type from java stdlib." ),
RETRIEVAL_NON_ITERABLE_TO_ARRAY( "Can't generate mapping method from non-iterable type to array." ),
RETRIEVAL_PRIMITIVE_PARAMETER( "Can't generate mapping method with primitive parameter type." ),
RETRIEVAL_PRIMITIVE_RETURN( "Can't generate mapping method with primitive return type." ),
RETRIEVAL_TYPE_VAR_SOURCE( "Can't generate mapping method for a generic type variable source." ),
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2 changes: 1 addition & 1 deletion processor/src/test/java/org/mapstruct/ap/test/bugs/_3786/Issue3786Test.java
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Expand Up @@ -27,7 +27,7 @@ public class Issue3786Test {
type = ErroneousByteArrayMapper.class,
kind = javax.tools.Diagnostic.Kind.ERROR,
line = 12,
message = "byte[] does not have an accessible constructor."
message = "Can't generate mapping method from non-iterable type to array."
)
}
)
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