All Implemented Interfaces and Traits:

Annotation

@Documented
@Repeatable(value: NotBlankWhenNullableConstraintList)
@Target(value: [FIELD, METHOD, PARAMETER, TYPE_USE, ANNOTATION_TYPE])
@Retention(value: RUNTIME)
@jakarta.validation.Constraint(validatedBy: [])
@interface NotBlankWhenNullableConstraint

The annotated element must must contain at least one non-whitespace character when it is not null.

Accepts only String types. Message interpolation key is org.klokwrk.lib.lo.validation.constraint.NotBlankWhenNullableConstraint.message.

This constraint is very similar to the bean validation's NotBlank, but this one skips null values and does not report them as violations.