diff --git a/src/main/java/io/swagger/codegen/v3/generators/DefaultCodegenConfig.java b/src/main/java/io/swagger/codegen/v3/generators/DefaultCodegenConfig.java
index f7daeb25e1..20f0f8d9e7 100644
--- a/src/main/java/io/swagger/codegen/v3/generators/DefaultCodegenConfig.java
+++ b/src/main/java/io/swagger/codegen/v3/generators/DefaultCodegenConfig.java
@@ -174,7 +174,6 @@ public abstract class DefaultCodegenConfig implements CodegenConfig {
 
     protected String ignoreFilePathOverride;
     protected boolean useOas2 = false;
-    protected boolean copyFistAllOfProperties = false;
     protected boolean ignoreImportMapping;
 
     public List<CliOption> cliOptions() {
@@ -1406,29 +1405,24 @@ else if (schema instanceof ComposedSchema) {
             final String parentName = getParentName(composed);
             final Schema parent = StringUtils.isBlank(parentName) ? null : allDefinitions.get(parentName);
             final List<Schema> allOf = composed.getAllOf();
-            // interfaces (intermediate models)
             if (allOf != null && !allOf.isEmpty()) {
-                for (int i = 0; i < allOf.size(); i++) {
-                    if (i == 0 && !copyFistAllOfProperties) {
-                        continue;
-                    }
-                    Schema interfaceSchema = allOf.get(i);
-                    if (StringUtils.isBlank(interfaceSchema.get$ref())) {
-                        continue;
-                    }
-                    Schema refSchema = null;
-                    String ref = OpenAPIUtil.getSimpleRef(interfaceSchema.get$ref());
-                    if (allDefinitions != null) {
-                        refSchema = allDefinitions.get(ref);
+                final int index = copyFirstAllOfProperties(allOf.get(0)) ? 0 : 1;
+                for (int i = index; i < allOf.size(); i++) {
+                    Schema allOfSchema = allOf.get(i);
+                    if (StringUtils.isNotBlank(allOfSchema.get$ref())) {
+                        String ref = OpenAPIUtil.getSimpleRef(allOfSchema.get$ref());
+                        if (allDefinitions != null) {
+                            allOfSchema = allDefinitions.get(ref);
+                        }
+                        final String modelName = toModelName(ref);
+                        addImport(codegenModel, modelName);
                     }
-                    final String modelName = toModelName(ref);
-                    addImport(codegenModel, modelName);
-                    if (allDefinitions != null && refSchema != null) {
+                    if (allDefinitions != null && allOfSchema != null) {
                         if (!supportsMixins) {
-                            addProperties(properties, required, refSchema, allDefinitions);
+                            addProperties(properties, required, allOfSchema, allDefinitions);
                         }
                         if (supportsInheritance) {
-                            addProperties(allProperties, allRequired, refSchema, allDefinitions);
+                            addProperties(allProperties, allRequired, allOfSchema, allDefinitions);
                         }
                     }
                 }
@@ -1477,6 +1471,11 @@ else if (schema instanceof ComposedSchema) {
         return codegenModel;
     }
 
+    protected boolean copyFirstAllOfProperties(Schema allOfSchema) {
+        return StringUtils.isBlank(allOfSchema.get$ref())
+            && allOfSchema.getProperties() != null && !allOfSchema.getProperties().isEmpty();
+    }
+
     protected void processMapSchema(CodegenModel codegenModel, String name, Schema schema) {
         codegenModel.getVendorExtensions().put(CodegenConstants.IS_MAP_CONTAINER_EXT_NAME, Boolean.TRUE);
         codegenModel.getVendorExtensions().put(IS_CONTAINER_EXT_NAME, Boolean.TRUE);
diff --git a/src/main/java/io/swagger/codegen/v3/generators/swift/Swift5Codegen.java b/src/main/java/io/swagger/codegen/v3/generators/swift/Swift5Codegen.java
index a7e3118d3a..eeeda01842 100644
--- a/src/main/java/io/swagger/codegen/v3/generators/swift/Swift5Codegen.java
+++ b/src/main/java/io/swagger/codegen/v3/generators/swift/Swift5Codegen.java
@@ -254,7 +254,7 @@ public void processOpts() {
         if (StringUtils.isBlank(templateDir)) {
             embeddedTemplateDir = templateDir = getTemplateDir();
         }
-        
+
         // Setup project name
         if (additionalProperties.containsKey(PROJECT_NAME)) {
             setProjectName((String) additionalProperties.get(PROJECT_NAME));
@@ -348,9 +348,6 @@ public void processOpts() {
         supportingFiles.add(new SupportingFile("gitignore.mustache",
             "",
             ".gitignore"));
-
-        copyFistAllOfProperties = true;
-
     }
 
     @Override
@@ -852,5 +849,10 @@ private static void reconcileProperties(CodegenModel codegenModel,
             codegenModel.vars = codegenProperties;
         }
     }
+
+    @Override
+    protected boolean copyFirstAllOfProperties(Schema allOfSchema) {
+        return false;
+    }
 }
 
diff --git a/src/main/resources/handlebars/Java/libraries/resteasy/api.mustache b/src/main/resources/handlebars/Java/libraries/resteasy/api.mustache
index ab1aa90ec8..dc82c09647 100644
--- a/src/main/resources/handlebars/Java/libraries/resteasy/api.mustache
+++ b/src/main/resources/handlebars/Java/libraries/resteasy/api.mustache
@@ -6,10 +6,10 @@ import {{invokerPackage}}.Configuration;
 import {{invokerPackage}}.Pair;
 
 {{#jakarta}}
-  import jakarta.ws.rs.core.GenericType;
+import jakarta.ws.rs.core.GenericType;
 {{/jakarta}}
 {{^jakarta}}
-  import javax.ws.rs.core.GenericType;
+import javax.ws.rs.core.GenericType;
 {{/jakarta}}
 
 {{#imports}}import {{import}};
diff --git a/src/main/resources/handlebars/Java/typeInfoAnnotation.mustache b/src/main/resources/handlebars/Java/typeInfoAnnotation.mustache
index 52695c64fe..eeda9eb1cf 100644
--- a/src/main/resources/handlebars/Java/typeInfoAnnotation.mustache
+++ b/src/main/resources/handlebars/Java/typeInfoAnnotation.mustache
@@ -1,14 +1,14 @@
 {{#jackson}}
-  @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "{{discriminator.propertyName}}", visible = true )
-  @JsonSubTypes({
-  {{#if discriminator.mapping}}
-    {{#each discriminator.mapping}}
-      @JsonSubTypes.Type(value = {{this}}.class, name = "{{@key}}"),
-    {{/each}}
-  {{else}}
-    {{#children}}
-      @JsonSubTypes.Type(value = {{classname}}.class, name = "{{name}}"),
-    {{/children}}
-  {{/if}}
-  })
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "{{discriminator.propertyName}}", visible = true )
+@JsonSubTypes({
+{{#if discriminator.mapping}}
+{{#each discriminator.mapping}}
+  @JsonSubTypes.Type(value = {{this}}.class, name = "{{@key}}"),
+{{/each}}
+{{else}}
+{{#children}}
+  @JsonSubTypes.Type(value = {{classname}}.class, name = "{{name}}"),
+{{/children}}
+{{/if}}
+})
 {{/jackson}}