upgrade spring-boot to version 4.0.3

Author: bnasslahsen

springdoc-openapi-starter-webflux-api/src/test/java/test/org/springdoc/api/v31/app194/config/ApiVersionParser.java

@@ -2,23 +2,25 @@
 
 public class ApiVersionParser implements org.springframework.web.accept.ApiVersionParser {
 
-    // allows us to use /api/v2/users instead of /api/2.0/users
-    @Override
-    public Comparable parseVersion(String version) {
-        // Remove "v" prefix if it exists (v1 becomes 1, v2 becomes 2)
-        if (version.startsWith("v") || version.startsWith("V")) {
-            version = version.substring(1);
-        }
-		
-		if("api-docs".equals(version) || "index.html".equals(version) 
-				|| "swagger-ui-bundle.js".equals(version)
-				|| "swagger-ui.css".equals(version)
-				|| "index.css".equals(version)
-				|| "swagger-ui-standalone-preset.js".equals(version)
-				|| "favicon-32x32.png".equals(version)
-				|| "favicon-16x16.png".equals(version)
-				|| "swagger-initializer.js".equals(version)) 
-			return null;
-        return version;
-    }
+	private static final String DEFAULT_VERSION = "1.0";
+
+	// allows us to use /api/v2/users instead of /api/2.0/users
+	@Override
+	public Comparable parseVersion(String version) {
+		// Remove "v" prefix if it exists (v1 becomes 1, v2 becomes 2)
+		if (version.startsWith("v") || version.startsWith("V")) {
+			version = version.substring(1);
+		}
+		// For non-numeric path segments (e.g. "api-docs", "swagger-ui.css"),
+		// fall back to the default version to avoid NPE from returning null
+		// in the reactive ApiVersionStrategy pipeline
+		try {
+			Double.parseDouble(version);
+		}
+		catch (NumberFormatException ex) {
+			return DEFAULT_VERSION;
+		}
+		return version;
+	}
+
 }

springdoc-openapi-starter-webflux-api/src/test/java/test/org/springdoc/api/v31/app194/config/WebConfig.java

@@ -1,15 +1,8 @@
 package test.org.springdoc.api.v31.app194.config;
 
-import test.org.springdoc.api.v31.NullSafeApiVersionStrategyDecorator;
-
-import org.springframework.beans.factory.ObjectProvider;
-import org.springframework.beans.factory.SmartInitializingSingleton;
-import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.web.reactive.accept.ApiVersionStrategy;
 import org.springframework.web.reactive.config.ApiVersionConfigurer;
 import org.springframework.web.reactive.config.WebFluxConfigurer;
-import org.springframework.web.reactive.handler.AbstractHandlerMapping;
 
 @Configuration
 public class WebConfig implements WebFluxConfigurer {
@@ -25,15 +18,4 @@ public void configureApiVersioning(ApiVersionConfigurer configurer) {
                 .setVersionParser(new ApiVersionParser());
     }
 
-	@Bean
-	SmartInitializingSingleton nullSafeApiVersionStrategyInitializer(
-			ObjectProvider<AbstractHandlerMapping> handlerMappings) {
-		return () -> handlerMappings.forEach(mapping -> {
-			ApiVersionStrategy strategy = mapping.getApiVersionStrategy();
-			if (strategy != null && !(strategy instanceof NullSafeApiVersionStrategyDecorator)) {
-				mapping.setApiVersionStrategy(new NullSafeApiVersionStrategyDecorator(strategy));
-			}
-		});
-	}
-
 }