Fix #3080; also support Shape.STRING for boolean/Boolean

Author: cowtowncoder

release-notes/CREDITS-2.x

@@ -1315,3 +1315,8 @@ Miguel G (Migwel@github)
 Jelle Voost (jellevoost@github)
   * Reported #3038: Two cases of incorrect error reporting about DeserializationFeature
    (2.12.2)
+
+Asaf Romano (asaf-romano@github)
+  * Reported #3080: configOverrides(boolean.class) silently ignored, whereas .configOverride(Boolean.class)
+    works for both primitives and boxed boolean values
+   (2.13.0)

release-notes/VERSION-2.x

@@ -17,6 +17,9 @@ Project: jackson-databind
 #3035: Add `removeMixIn()` method in `MapperBuilder`
 #3036: Backport `MapperBuilder` lambda-taking methods: `withConfigOverride()`,
   `withCoercionConfig()`, `withCoercionConfigDefaults()`
+#3080: configOverrides(boolean.class) silently ignored, whereas .configOverride(Boolean.class)
+  works for both primitives and boxed boolean values
+ (reported by Asaf R)
 
 2.12.2 (03-Mar-2021)
 

src/main/java/com/fasterxml/jackson/databind/ser/std/BooleanSerializer.java

@@ -47,13 +47,18 @@ public BooleanSerializer(boolean forPrimitive) {
     public JsonSerializer<?> createContextual(SerializerProvider serializers,
             BeanProperty property) throws JsonMappingException
     {
-        JsonFormat.Value format = findFormatOverrides(serializers,
-                property, Boolean.class);
+        // 16-Mar-2021, tatu: As per [databind#3080], was passing wrapper type
+        //    always; should not have.
+        JsonFormat.Value format = findFormatOverrides(serializers, property,
+                handledType());
         if (format != null) {
             JsonFormat.Shape shape = format.getShape();
             if (shape.isNumeric()) {
                 return new AsNumber(_forPrimitive);
             }
+            if (shape == JsonFormat.Shape.STRING) {
+                return new ToStringSerializer(_handledType);
+            }
         }
         return this;
     }

src/test/java/com/fasterxml/jackson/databind/format/BooleanFormatTest.java

@@ -38,16 +38,24 @@ public BooleanWrapper() { }
         public BooleanWrapper(Boolean value) { b = value; }
     }
 
+    // [databind#3080]
+    protected static class PrimitiveBooleanWrapper {
+        public boolean b;
+
+        public PrimitiveBooleanWrapper() { }
+        public PrimitiveBooleanWrapper(boolean value) { b = value; }
+    }
+
     static class AltBoolean extends BooleanWrapper
     {
         public AltBoolean() { }
         public AltBoolean(Boolean b) { super(b); }
     }
 
     /*
-    /**********************************************************
+    /**********************************************************************
     /* Test methods
-    /**********************************************************
+    /**********************************************************************
      */
 
     private final static ObjectMapper MAPPER = newJsonMapper();
@@ -56,11 +64,39 @@ public void testShapeViaDefaults() throws Exception
     {
         assertEquals(aposToQuotes("{'b':true}"),
                 MAPPER.writeValueAsString(new BooleanWrapper(true)));
-        ObjectMapper m = newJsonMapper();
-        m.configOverride(Boolean.class)
-            .setFormat(JsonFormat.Value.forShape(JsonFormat.Shape.NUMBER));
+        ObjectMapper m = jsonMapperBuilder()
+                .withConfigOverride(Boolean.class,
+                        cfg -> cfg.setFormat(JsonFormat.Value.forShape(JsonFormat.Shape.NUMBER)
+        )).build();
         assertEquals(aposToQuotes("{'b':1}"),
                 m.writeValueAsString(new BooleanWrapper(true)));
+
+        m = jsonMapperBuilder()
+                .withConfigOverride(Boolean.class,
+                        cfg -> cfg.setFormat(JsonFormat.Value.forShape(JsonFormat.Shape.STRING)
+        )).build();
+        assertEquals(aposToQuotes("{'b':'true'}"),
+                m.writeValueAsString(new BooleanWrapper(true)));
+    }
+
+    // [databind#3080]
+    public void testPrimitiveShapeViaDefaults() throws Exception
+    {
+        assertEquals(aposToQuotes("{'b':true}"),
+                MAPPER.writeValueAsString(new PrimitiveBooleanWrapper(true)));
+        ObjectMapper m = jsonMapperBuilder()
+                .withConfigOverride(Boolean.TYPE, cfg ->
+                    cfg.setFormat(JsonFormat.Value.forShape(JsonFormat.Shape.NUMBER))
+        ).build();
+        assertEquals(aposToQuotes("{'b':1}"),
+                m.writeValueAsString(new PrimitiveBooleanWrapper(true)));
+
+        m = jsonMapperBuilder()
+                .withConfigOverride(Boolean.TYPE, cfg ->
+                    cfg.setFormat(JsonFormat.Value.forShape(JsonFormat.Shape.STRING))
+        ).build();
+        assertEquals(aposToQuotes("{'b':'true'}"),
+                m.writeValueAsString(new PrimitiveBooleanWrapper(true)));
     }
 
     public void testShapeOnProperty() throws Exception