feature, test: add QueryProjectionBuilderTestEntity for GenericExporter

Author: Cole-SJ

querydsl-tooling/querydsl-apt/src/test/java/com/querydsl/apt/GenericExporterTest.java

@@ -50,6 +50,7 @@ public void execute() throws IOException {
     expected.add("QQueryProjectionTest_EntityWithProjection.java");
     expected.add("QEmbeddable3Test_EmbeddableClass.java");
     expected.add("QQueryEmbedded4Test_User.java");
+    expected.add("QQueryProjectionBuilderTestEntity.java");
 
     execute(expected, "GenericExporterTest", "QuerydslAnnotationProcessor");
   }
@@ -89,6 +90,7 @@ public void execute2() throws IOException {
     expected.add("QOneToOneTest_Person.java");
     expected.add("QGeneric16Test_HidaBez.java");
     expected.add("QGeneric16Test_HidaBezGruppe.java");
+    expected.add("QQueryProjectionBuilderTestEntity.java");
 
     execute(expected, "GenericExporterTest2", "HibernateAnnotationProcessor");
   }

querydsl-tooling/querydsl-codegen/src/main/java/com/querydsl/codegen/GenericExporter.java

@@ -403,7 +403,11 @@ private void addConstructors(Class<?> cl, EntityType type) {
           }
           parameters.add(new Parameter("param" + i, parameterType));
         }
-        type.addConstructor(new com.querydsl.codegen.utils.model.Constructor(parameters));
+        var queryProjection = constructor.getAnnotation(QueryProjection.class);
+        var newConstructor = new com.querydsl.codegen.utils.model.Constructor(parameters);
+        newConstructor.setUseBuilder(queryProjection.useBuilder());
+        newConstructor.setBuilderName(queryProjection.builderName());
+        type.addConstructor(newConstructor);
       }
     }
   }