Cherrypick couple of cleanup items from #121

Author: cowtowncoder

jr-annotation-support/src/main/java/com/fasterxml/jackson/jr/annotationsupport/AnnotationBasedIntrospector.java

@@ -99,11 +99,7 @@ protected POJODefinition introspectDefinition()
                         stringCtor = ctor;
                     } else if (argType == Long.class || argType == Long.TYPE) {
                         longCtor = ctor;
-                    } else {
-                        continue;
                     }
-                } else {
-                    continue;
                 }
             }
         }
@@ -492,12 +488,7 @@ protected <ANN extends Annotation> ANN _find(AnnotatedElement elem, Class<ANN> a
      */
 
     protected APropBuilder _propBuilder(String name) {
-        APropBuilder b = _props.get(name);
-        if (b == null) {
-            b = new APropBuilder(name);
-            _props.put(name, b);
-        }
-        return b;
+        return _props.computeIfAbsent(name,APropBuilder::new);
     }
 
     protected void _addIgnoral(String name) {

jr-objects/src/main/java/com/fasterxml/jackson/jr/ob/impl/BeanPropertyIntrospector.java

@@ -47,7 +47,7 @@ public POJODefinition pojoDefinitionForSerialization(JSONWriter w, Class<?> pojo
 
     private POJODefinition _construct(Class<?> beanType, int features)
     {
-        Map<String,PropBuilder> propsByName = new TreeMap<String,PropBuilder>();
+        Map<String,PropBuilder> propsByName = new TreeMap<>();
         _introspect(beanType, propsByName, features);
 
         Constructor<?> defaultCtor = null;
@@ -64,11 +64,7 @@ private POJODefinition _construct(Class<?> beanType, int features)
                     stringCtor = ctor;
                 } else if (argType == Long.class || argType == Long.TYPE) {
                     longCtor = ctor;
-                } else {
-                    continue;
                 }
-            } else {
-                continue;
             }
         }
         final int len = propsByName.size();