fix: verify Schema object getTypes() is not null or empty

K5qu4r3d · ewaostrowska · commit 3b6d4a81f13b · 2025-11-12T13:14:18.000+01:00
diff --git a/modules/swagger-core/src/main/java/io/swagger/v3/core/util/AnnotationsUtils.java b/modules/swagger-core/src/main/java/io/swagger/v3/core/util/AnnotationsUtils.java
@@ -951,7 +951,10 @@ public static Schema resolveSchemaFromType(Class<?> schemaImplementation, Compon
                 existingSchemaObject = reResolvedSchema.get();
             }
         }
-        if (StringUtils.isBlank(existingSchemaObject.get$ref()) && StringUtils.isBlank(existingSchemaObject.getType())) {
+        boolean doesSchemaHaveTypes = existingSchemaObject.getTypes() == null || existingSchemaObject.getTypes().isEmpty();
+        if (StringUtils.isBlank(existingSchemaObject.get$ref())
+                && StringUtils.isBlank(existingSchemaObject.getType())
+                && doesSchemaHaveTypes) {
             // default to string
             existingSchemaObject.setType("string");
         }

Original file line number	Diff line number	Diff line change
`@@ -951,7 +951,10 @@ public static Schema resolveSchemaFromType(Class<?> schemaImplementation, Compon`
`951`	`951`	`existingSchemaObject = reResolvedSchema.get();`
`952`	`952`	`}`
`953`	`953`	`}`
`954`		`- if (StringUtils.isBlank(existingSchemaObject.get$ref()) && StringUtils.isBlank(existingSchemaObject.getType())) {`
	`954`	`+ boolean doesSchemaHaveTypes = existingSchemaObject.getTypes() == null \|\| existingSchemaObject.getTypes().isEmpty();`
	`955`	`+ if (StringUtils.isBlank(existingSchemaObject.get$ref())`
	`956`	`+ && StringUtils.isBlank(existingSchemaObject.getType())`
	`957`	`+ && doesSchemaHaveTypes) {`
`955`	`958`	`// default to string`
`956`	`959`	`existingSchemaObject.setType("string");`
`957`	`960`	`}`