Fix NPE in Q type resolution for primitive and wrapper types.

Closes: #3284
See: spring-projects/spring-data-mongodb#4958

Signed-off-by: ckdgus08 <ckdgus0808@naver.com>

src/main/java/org/springframework/data/util/QTypeContributor.java

@@ -41,6 +41,10 @@ public class QTypeContributor {
 				return;
 			}
 
+			if (type.isPrimitive() || type.isArray()) {
+				return;
+			}
+
 			String queryClassName = getQueryClassName(type);
 			if (ClassUtils.isPresent(queryClassName, classLoader)) {
 

src/test/java/org/springframework/data/util/QTypeContributorUnitTests.java

@@ -26,10 +26,16 @@ import org.springframework.aot.hint.predicate.RuntimeHintsPredicates;
 import org.springframework.data.aot.sample.ConfigWithQuerydslPredicateExecutor.Person;
 import org.springframework.data.aot.sample.QConfigWithQuerydslPredicateExecutor_Person;
 import org.springframework.data.classloadersupport.HidingClassLoader;
+import org.springframework.data.querydsl.User;
 import org.springframework.javapoet.ClassName;
 
 import com.querydsl.core.types.EntityPath;
 
+/**
+ * Unit tests for {@link QTypeContributor}.
+ *
+ * @author ckdgus08
+ */
 class QTypeContributorUnitTests {
 
 	@Test // GH-2721
@@ -68,4 +74,59 @@ class QTypeContributorUnitTests {
 		assertThat(generationContext.getRuntimeHints()).matches(
 				RuntimeHintsPredicates.reflection().onType(QConfigWithQuerydslPredicateExecutor_Person.class).negate());
 	}
+
+	@Test // DATAMONGO-4958
+	void doesNotAddQTypeHintForArrayType() {
+
+		GenerationContext generationContext = new DefaultGenerationContext(
+				new ClassNameGenerator(ClassName.get(this.getClass())), new InMemoryGeneratedFiles());
+
+		QTypeContributor.contributeEntityPath(Person[].class, generationContext, HidingClassLoader.hideTypes());
+
+		assertThat(generationContext.getRuntimeHints()).matches(
+				RuntimeHintsPredicates.reflection().onType(QConfigWithQuerydslPredicateExecutor_Person.class).negate());
+		assertThat(generationContext.getRuntimeHints()).matches(
+				RuntimeHintsPredicates.reflection().onType(QConfigWithQuerydslPredicateExecutor_Person[].class).negate());
+	}
+
+	@Test // DATAMONGO-4958
+	void addsQTypeHintForQUserType() {
+
+		GenerationContext generationContext = new DefaultGenerationContext(
+				new ClassNameGenerator(ClassName.get(this.getClass())), new InMemoryGeneratedFiles());
+
+		QTypeContributor.contributeEntityPath(User.class, generationContext, getClass().getClassLoader());
+
+		var qUserHintCount = generationContext.getRuntimeHints().reflection().typeHints()
+				.filter(hint -> hint.getType().getName().equals("org.springframework.data.querydsl.QUser"))
+				.count();
+		assertThat(qUserHintCount).isEqualTo(1);
+	}
+
+	@Test // DATAMONGO-4958
+	void doesNotAddQTypeHintForQUserArrayType() {
+
+		GenerationContext generationContext = new DefaultGenerationContext(
+				new ClassNameGenerator(ClassName.get(this.getClass())), new InMemoryGeneratedFiles());
+		var classLoader = getClass().getClassLoader();
+
+		QTypeContributor.contributeEntityPath(User[].class, generationContext, classLoader);
+
+		assertThat(generationContext.getRuntimeHints().reflection().typeHints()).isEmpty();
+		var qUserHintCount = generationContext.getRuntimeHints().reflection().typeHints()
+				.filter(hint -> hint.getType().getName().equals("org.springframework.data.querydsl.QUser"))
+				.count();
+		assertThat(qUserHintCount).isEqualTo(0);
+	}
+
+	@Test // DATAMONGO-4958
+	void doesNotAddQTypeHintForPrimitiveType() {
+
+		GenerationContext generationContext = new DefaultGenerationContext(
+				new ClassNameGenerator(ClassName.get(this.getClass())), new InMemoryGeneratedFiles());
+
+		QTypeContributor.contributeEntityPath(int.class, generationContext, getClass().getClassLoader());
+
+		assertThat(generationContext.getRuntimeHints().reflection().typeHints()).isEmpty();
+	}
 }