When fetching a List backed by a NULL PostgreSQL array, a NPE is thrown

I have PostgreSQL table with the following column:

previous_names VARCHAR(255)[] DEFAULT NULL

and mapped it to:

@Entity
@TypeDefs({
        @TypeDef(name = "string-array", typeClass = StringArrayType.class)
})
public class Project {

    @Column(name = "previous_names")
    @Type(type = "string-array")
    private List<String> previousNames = new ArrayList<>();
}

When querying this entity I get:

java.lang.NullPointerException: null
        at java.base/java.lang.reflect.Array.newArray(Native Method) ~[na:na]
        at java.base/java.lang.reflect.Array.newInstance(Array.java:78) ~[na:na]
        at com.vladmihalcea.hibernate.type.array.internal.ArrayUtil.unwrapArray(ArrayUtil.java:199) ~[hibernate-types-52-2.9.0.jar:na]
        at com.vladmihalcea.hibernate.type.array.internal.AbstractArrayTypeDescriptor.wrap(AbstractArrayTypeDescriptor.java:83) ~[hibernate-types-52-2.9.0.jar:na]
        at com.vladmihalcea.hibernate.type.array.internal.ArraySqlTypeDescriptor$2.doExtract(ArraySqlTypeDescriptor.java:55) ~[hibernate-types-52-2.9.0.jar:na]
        at org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:47) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]

I just upgraded from 2.8.0 to 2.9.0 to be able to map List<String> types instead of String[].

Do I need some other configuration maybe?

[vladmihalcea]

I released the 2.9.1 version. You can check it out from Maven Central as soon as it’s synced with Sonatype.

[marceloverdijk]

That would be appreciated (if you have time to do it).