prevent duplicate constants

Author: SentryMan

http-generator-client/src/main/java/io/avaje/http/generator/client/ClientMethodWriter.java

@@ -9,6 +9,7 @@
 
 import static java.util.stream.Collectors.toMap;
 
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
@@ -35,6 +36,7 @@ class ClientMethodWriter {
   private final Optional<RequestTimeoutPrism> timeout;
   private final boolean useConfig;
   private final Map<String, String> segmentPropertyMap;
+  private final Set<String> propertyConstants = new HashSet<>();
 
   ClientMethodWriter(MethodReader method, Append writer, boolean useJsonb) {
     this.method = method;
@@ -76,6 +78,11 @@ private void methodStart(Append writer) {
 
     segmentPropertyMap.forEach(
         (k, v) -> {
+
+          if (!propertyConstants.add(v)) {
+            return;
+          }
+
           writer.append("  private static final String %s = ", v);
           final String getProperty = useConfig ? "Config.get(" : "System.getProperty(";
           writer.append(getProperty).append("\"%s\");", k).eol();

http-generator-client/src/test/java/io/avaje/http/generator/client/clients/TitanFall.java

@@ -7,5 +7,9 @@
 public interface TitanFall {
 
   @Get("/${titan}/${drop.point}")
-  Titan titanfall();
+  Titan titanFall();
+
+
+  @Get("/${titan}/copium")
+  Titan titanFall3();
 }