From a552b861fa134e9ac97f1d3c999039e38aba6487 Mon Sep 17 00:00:00 2001
From: "robin.bygrave" <robin.bygrave@eroad.com>
Date: Thu, 27 Nov 2025 12:24:38 +1300
Subject: [PATCH] [HttpClient] Improve error when no client implementation
 found

Add the:
 `3. Using JDK 23+, and need to set property <maven.compiler.proc>full</maven.compiler.proc>`

... just to be a bit more explicit. The `avaje-http-client-generator dependency was not available` is accurate but perhaps it's good to explicitly mention the maven.compiler.proc full issue.
---
 http-client/src/main/java/io/avaje/http/client/DHttpApi.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/http-client/src/main/java/io/avaje/http/client/DHttpApi.java b/http-client/src/main/java/io/avaje/http/client/DHttpApi.java
index 19ce2a98..75cdc1bb 100644
--- a/http-client/src/main/java/io/avaje/http/client/DHttpApi.java
+++ b/http-client/src/main/java/io/avaje/http/client/DHttpApi.java
@@ -42,7 +42,8 @@ <T> T provideFor(Class<T> type, HttpClient httpClient) {
               + type
               + "\nPossible Causes: \n"
               + "1. Missing @Client or @Client.Import annotation.\n"
-              + "2. The avaje-http-client-generator dependency was not available during compilation\n");
+              + "2. The avaje-http-client-generator dependency was not available during compilation\n"
+              + "3. Using JDK 23+, and need to set property <maven.compiler.proc>full</maven.compiler.proc>\n");
     }
     return apiProvider.provide(httpClient);
   }