Upgrade to Java 25 (default), Spring Boot 3.5.9, align all dependencies

- Target Java 25 by default, maintain Java 21+ compatibility via -Pjava21 profile
- Fix all deprecation warnings (Schema, URL, BigDecimal, Jackson, Thread, Locale, etc.)
- Bump dependencies: Lombok 1.18.42, PostgreSQL 42.7.8, Flyway 11.7.2, Testcontainers 1.21.4,
  SpringDoc 2.8.15, Spring Cloud AWS 3.4.2, Azure 5.24.1, GCP 6.5.4, gRPC 1.79.0,
  Protobuf 4.33.5, AWS SDK 2.41.24, Swagger 2.2.42, OpenAPI Gen 7.19.0
- Upgrade all Maven plugin versions to latest stable
- Enforce JDK 21+ via maven-enforcer-plugin

Author: ancongui

pom.xml

@@ -139,7 +139,7 @@
                 <configuration>
                     <doclint>none</doclint>
                     <quiet>true</quiet>
-                    <source>21</source>
+                    <source>${java.version}</source>
                     <additionalOptions>
                         <additionalOption>-Xdoclint:none</additionalOption>
                     </additionalOptions>

src/main/java/org/fireflyframework/web/logging/appender/PiiMaskingAppender.java

@@ -169,6 +169,7 @@ public ch.qos.logback.classic.spi.IThrowableProxy getThrowableProxy() {
         @Override
         public boolean hasCallerData() { return originalEvent.hasCallerData(); }
 
+        @SuppressWarnings("deprecation")
         @Override
         public Marker getMarker() { return originalEvent.getMarker(); }
 
@@ -180,6 +181,7 @@ public java.util.Map<String, String> getMDCPropertyMap() {
             return originalEvent.getMDCPropertyMap(); 
         }
 
+        @SuppressWarnings("deprecation")
         @Override
         public java.util.Map<String, String> getMdc() { return originalEvent.getMdc(); }
 

src/main/java/org/fireflyframework/web/logging/filter/HttpRequestLoggingWebFilter.java

@@ -20,8 +20,11 @@
 import org.fireflyframework.web.logging.config.HttpRequestLoggingProperties;
 import org.fireflyframework.web.logging.service.PiiMaskingService;
 import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.core.json.JsonWriteFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.databind.json.JsonMapper;
 import com.fasterxml.jackson.core.JsonGenerator;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -84,20 +87,14 @@ public HttpRequestLoggingWebFilter(HttpRequestLoggingProperties properties,
      * Ensures valid JSON output by handling special characters, null values, and other edge cases.
      */
     private ObjectMapper createObjectMapper() {
-        ObjectMapper mapper = new ObjectMapper();
-        
-        // Configure to handle special characters properly
-        mapper.getFactory().configure(JsonGenerator.Feature.ESCAPE_NON_ASCII, true);
-        mapper.getFactory().configure(JsonGenerator.Feature.QUOTE_NON_NUMERIC_NUMBERS, true);
-        
-        // Handle null values gracefully
-        mapper.configure(SerializationFeature.WRITE_NULL_MAP_VALUES, false);
-        mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
-        
-        // Ensure deterministic output
-        mapper.configure(SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS, true);
-        
-        return mapper;
+        // Configure to handle special characters, null values, and deterministic output
+        return JsonMapper.builder()
+                .configure(JsonWriteFeature.ESCAPE_NON_ASCII, true)
+                .configure(JsonWriteFeature.WRITE_NAN_AS_STRINGS, true)
+                .configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false)
+                .configure(SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS, true)
+                .serializationInclusion(JsonInclude.Include.NON_NULL)
+                .build();
     }
 
     /**