[Java][Spring] useRecords: no @NotNull on records without bean validation (#25265)

Author: Sekator778

modules/openapi-generator/src/main/resources/JavaSpring/record.mustache

@@ -68,9 +68,6 @@ public record {{classname}}(
     {{#useBeanValidation}}
     {{>beanValidation}}{{! prevent indent}}
     {{/useBeanValidation}}
-    {{^useBeanValidation}}
-    {{#lambda.trim}}{{>notNull}}{{/lambda.trim}}
-    {{/useBeanValidation}}
     {{#swagger2AnnotationLibrary}}
     @Schema(name = "{{{baseName}}}"{{#isReadOnly}}, accessMode = Schema.AccessMode.READ_ONLY{{/isReadOnly}}{{#example}}, example = "{{{.}}}"{{/example}}{{#description}}, description = "{{{.}}}"{{/description}}{{#deprecated}}, deprecated = true{{/deprecated}}, requiredMode = {{#required}}Schema.RequiredMode.REQUIRED{{/required}}{{^required}}Schema.RequiredMode.NOT_REQUIRED{{/required}}{{#isNullable}}, nullable = true{{/isNullable}})
     {{/swagger2AnnotationLibrary}}

modules/openapi-generator/src/test/java/org/openapitools/codegen/java/spring/SpringCodegenTest.java

@@ -10442,6 +10442,34 @@ public void useRecordsWithoutOpenApiNullable() throws IOException {
                 .doesNotContain("JsonNullable", "if (nickname == null)");
     }
 
+    @Test
+    public void useRecordsWithoutBeanValidationHasNoNotNullAnnotationNorImport_issue23751() throws IOException {
+        Map<String, File> files = generateRecords(RECORDS_SPEC, Map.of(SpringCodegen.USE_BEANVALIDATION, "false"));
+
+        assertSource(files, "Pet.java")
+                .contains("public record Pet(", "String name,")
+                .doesNotContain("@NotNull", "@Size", "validation.constraints");
+        assertSource(files, "Owner.java")
+                .doesNotContain("@NotNull", "validation.constraints");
+    }
+
+    @Test
+    public void useRecordsWithoutBeanValidationHasNoRequiredNullableMarker_issue23751() throws IOException {
+        Map<String, File> files = generateRecords(RECORDS_FIELDS_SPEC, Map.of(SpringCodegen.USE_BEANVALIDATION, "false"));
+
+        assertSource(files, "Defaults.java")
+                .contains("public record Defaults(", "JsonNullable<String> reqNullable,")
+                .doesNotContain("@NotNull", "@Present", "validation.constraints");
+    }
+
+    @Test
+    public void useRecordsWithBeanValidationKeepsNotNullAndItsImport() throws IOException {
+        Map<String, File> files = generateRecords(RECORDS_SPEC, Map.of(SpringCodegen.USE_BEANVALIDATION, "true"));
+
+        assertSource(files, "Pet.java")
+                .contains("@NotNull @Size(min = 2)", "import jakarta.validation.constraints.*;");
+    }
+
     @Test
     public void useRecordsHasOnlyTheCanonicalConstructor() throws IOException {
         for (Map<String, Object> options : List.<Map<String, Object>>of(