Drop ResponseSupport

Author: damianmalczewski

CHANGELOG.md

@@ -19,14 +19,15 @@ The format is based on [Keep a Changelog][keepachangelog], and this project adhe
 - Bump `problem4j-jackson3` to `2.0.0-RC1`.
 - Change `ProblemResolver` to contain just `resolve` method, returning `Problem`.
 - Hide `IdentityProblemFormat` and make it available via `ProblemFormat.identity()`.
-- Split `ProblemSupport` into `ViolationSupport` and `ResponseSupport` to separate concerns and mitigate conflicts with
-  `ProblemSupport` in `problem4j-core`.
+- Hide `IdentityProblemPostProcessor` and make it available via `ProblemPostProcessor.identity()`.
+- Move `ProblemSupport` into `ViolationSupport` to mitigate conflicts with `ProblemSupport` in `problem4j-core`.
 
 ### Removed
 
 - Remove `problem4j.resolver-caching.max-cache-size` and evicting cache for `ProblemResolver`-s (non-evicting cache is
   still present).
 - Remove `ProblemSupport.resolveStatus(HttpStatusCode)`.
+- Remove `ProblemSupport.resolveStatus(Problem)`.
 
 ## [2.2.4] - 2026-03-29
 

README.md

@@ -124,14 +124,15 @@ public class ExampleExceptionResolver implements ProblemResolver {
   }
 
   @Override
-  public ProblemBuilder resolveBuilder(
+  public Problem resolve(
       ProblemContext context, Exception ex, HttpHeaders headers, HttpStatusCode status) {
     return Problem.builder()
         .type("errors/invalid-request")
         .title("Invalid Request")
         .status(400)
         .detail("bad input for user " + ((ExampleException) ex).getUserId())
-        .extension("userId", ((ExampleException) ex).getUserId());
+        .extension("userId", ((ExampleException) ex).getUserId())
+        .build();
   }
 }
 ```

problem4j-spring-web/src/main/java/io/github/problem4j/spring/web/ResponseSupport.java

@@ -17,7 +17,6 @@
 package io.github.problem4j.spring.webflux;
 
 import static io.github.problem4j.spring.web.AttributeSupport.PROBLEM_CONTEXT_ATTRIBUTE;
-import static io.github.problem4j.spring.web.ResponseSupport.resolveStatus;
 import static io.github.problem4j.spring.webflux.WebFluxAdviceSupport.logAdviceException;
 
 import io.github.problem4j.core.Problem;
@@ -119,7 +118,9 @@ public Mono<ResponseEntity<Problem>> handleException(Exception ex, ServerWebExch
       problem = Problem.of(HttpStatus.INTERNAL_SERVER_ERROR.value());
     }
 
-    HttpStatus status = resolveStatus(problem);
+    HttpStatus status =
+        Optional.ofNullable(HttpStatus.resolve(problem.getStatus()))
+            .orElse(HttpStatus.INTERNAL_SERVER_ERROR);
 
     for (AdviceWebFluxInspector inspector : adviceWebFluxInspectors) {
       inspector.inspect(context, problem, ex, headers, status, exchange);

problem4j-spring-web/src/test/java/io/github/problem4j/spring/web/ResponseSupportTest.java

@@ -17,14 +17,14 @@
 package io.github.problem4j.spring.webflux;
 
 import static io.github.problem4j.spring.web.AttributeSupport.PROBLEM_CONTEXT_ATTRIBUTE;
-import static io.github.problem4j.spring.web.ResponseSupport.resolveStatus;
 import static io.github.problem4j.spring.webflux.WebFluxAdviceSupport.logAdviceException;
 
 import io.github.problem4j.core.Problem;
 import io.github.problem4j.core.ProblemContext;
 import io.github.problem4j.spring.web.ProblemPostProcessor;
 import io.github.problem4j.spring.web.ProblemResolverStore;
 import java.util.List;
+import java.util.Optional;
 import org.jspecify.annotations.Nullable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -119,7 +119,9 @@ protected Mono<ResponseEntity<Object>> handleExceptionInternal(
       problem = Problem.of(HttpStatus.INTERNAL_SERVER_ERROR.value());
     }
 
-    status = resolveStatus(problem);
+    status =
+        Optional.ofNullable(HttpStatus.resolve(problem.getStatus()))
+            .orElse(HttpStatus.INTERNAL_SERVER_ERROR);
 
     for (AdviceWebFluxInspector inspector : adviceWebFluxInspectors) {
       inspector.inspect(context, problem, ex, headers, status, exchange);

problem4j-spring-webflux/src/main/java/io/github/problem4j/spring/webflux/ExceptionWebFluxAdvice.java

@@ -23,8 +23,8 @@
 import io.github.problem4j.core.ProblemContext;
 import io.github.problem4j.core.ProblemException;
 import io.github.problem4j.spring.web.ProblemPostProcessor;
-import io.github.problem4j.spring.web.ResponseSupport;
 import java.util.List;
+import java.util.Optional;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.http.HttpHeaders;
@@ -96,7 +96,9 @@ public Mono<ResponseEntity<Problem>> handleProblemException(
       problem = Problem.of(HttpStatus.INTERNAL_SERVER_ERROR.value());
     }
 
-    HttpStatus status = ResponseSupport.resolveStatus(problem);
+    HttpStatus status =
+        Optional.ofNullable(HttpStatus.resolve(problem.getStatus()))
+            .orElse(HttpStatus.INTERNAL_SERVER_ERROR);
 
     for (AdviceWebFluxInspector inspector : adviceWebFluxInspectors) {
       inspector.inspect(context, problem, ex, headers, status, exchange);

problem4j-spring-webflux/src/main/java/io/github/problem4j/spring/webflux/ProblemEnhancedWebFluxHandler.java

@@ -26,7 +26,6 @@
 import io.github.problem4j.core.ProblemMapper;
 import io.github.problem4j.spring.web.ProblemPostProcessor;
 import io.github.problem4j.spring.web.ProblemResolverStore;
-import io.github.problem4j.spring.web.ResponseSupport;
 import io.github.problem4j.spring.web.resolver.ProblemResolver;
 import java.util.List;
 import java.util.Optional;
@@ -122,7 +121,9 @@ public ResponseEntity<Object> handleException(Exception ex, WebRequest request)
       problem = Problem.of(HttpStatus.INTERNAL_SERVER_ERROR.value());
     }
 
-    HttpStatus status = ResponseSupport.resolveStatus(problem);
+    HttpStatus status =
+        Optional.ofNullable(HttpStatus.resolve(problem.getStatus()))
+            .orElse(HttpStatus.INTERNAL_SERVER_ERROR);
 
     for (AdviceWebMvcInspector inspector : adviceWebMvcInspectors) {
       inspector.inspect(context, problem, ex, headers, status, request);

problem4j-spring-webflux/src/main/java/io/github/problem4j/spring/webflux/ProblemExceptionWebFluxAdvice.java

@@ -17,7 +17,6 @@
 package io.github.problem4j.spring.webmvc;
 
 import static io.github.problem4j.spring.web.AttributeSupport.PROBLEM_CONTEXT_ATTRIBUTE;
-import static io.github.problem4j.spring.web.ResponseSupport.resolveStatus;
 import static io.github.problem4j.spring.webmvc.WebMvcAdviceSupport.logAdviceException;
 import static org.springframework.web.context.request.RequestAttributes.SCOPE_REQUEST;
 
@@ -26,6 +25,7 @@
 import io.github.problem4j.spring.web.ProblemPostProcessor;
 import io.github.problem4j.spring.web.ProblemResolverStore;
 import java.util.List;
+import java.util.Optional;
 import org.jspecify.annotations.Nullable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -120,7 +120,9 @@ public ProblemEnhancedWebMvcHandler(
       problem = Problem.of(HttpStatus.INTERNAL_SERVER_ERROR.value());
     }
 
-    status = resolveStatus(problem);
+    status =
+        Optional.ofNullable(HttpStatus.resolve(problem.getStatus()))
+            .orElse(HttpStatus.INTERNAL_SERVER_ERROR);
 
     for (AdviceWebMvcInspector inspector : adviceWebMvcInspectors) {
       inspector.inspect(context, problem, ex, headers, status, request);

problem4j-spring-webmvc/src/main/java/io/github/problem4j/spring/webmvc/ExceptionWebMvcAdvice.java

@@ -24,8 +24,8 @@
 import io.github.problem4j.core.ProblemContext;
 import io.github.problem4j.core.ProblemException;
 import io.github.problem4j.spring.web.ProblemPostProcessor;
-import io.github.problem4j.spring.web.ResponseSupport;
 import java.util.List;
+import java.util.Optional;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.http.HttpHeaders;
@@ -99,7 +99,9 @@ public ResponseEntity<Problem> handleProblemException(ProblemException ex, WebRe
       problem = Problem.of(HttpStatus.INTERNAL_SERVER_ERROR.value());
     }
 
-    HttpStatus status = ResponseSupport.resolveStatus(problem);
+    HttpStatus status =
+        Optional.ofNullable(HttpStatus.resolve(problem.getStatus()))
+            .orElse(HttpStatus.INTERNAL_SERVER_ERROR);
 
     for (AdviceWebMvcInspector inspector : adviceWebMvcInspectors) {
       inspector.inspect(context, problem, ex, headers, status, request);