Should fix JsonCreator related bugs by using available properties if explicitly annotated.

Author: nbauernfeind

src/main/scala/com/fasterxml/jackson/module/scala/introspect/ScalaAnnotationIntrospectorModule.scala

@@ -91,9 +91,14 @@ object ScalaAnnotationIntrospector extends NopAnnotationIntrospector
     }
   }
 
-  override def findCreatorBinding(a: Annotated): JsonCreator.Mode =
-    if (isScala(a) && hasCreatorAnnotation(a)) JsonCreator.Mode.PROPERTIES else null
-
+  override def findCreatorBinding(a: Annotated): JsonCreator.Mode = {
+    val ann = _findAnnotation(a, classOf[JsonCreator])
+    if (ann != null) {
+      ann.mode()
+    } else if (isScala(a) && hasCreatorAnnotation(a)) {
+      JsonCreator.Mode.PROPERTIES
+    } else null
+  }
 }
 
 trait ScalaAnnotationIntrospectorModule extends JacksonModule {

src/test/java/com/fasterxml/jackson/module/scala/deser/UserOfValueHolder.java

@@ -3,7 +3,6 @@
 import com.fasterxml.jackson.annotation.JsonCreator;
 
 public class ValueHolder {
-
     public final long internalValue;
 
     private ValueHolder(long internalValue) {
@@ -14,5 +13,4 @@ private ValueHolder(long internalValue) {
     public static ValueHolder parse(String value) {
         return new ValueHolder(Long.parseLong(value));
     }
-
 }

src/test/java/com/fasterxml/jackson/module/scala/deser/ValueHolder.java

@@ -106,7 +106,10 @@ class CaseClassSerializerTest extends SerializerTest {
   }
 
   it should "serialize a case class with unicode name properties" in {
-    serialize(UnicodeNameCaseClass(23, "the name of this")) should equal( """{"name":"the name of this","winning-id":23}""")
+    serialize(UnicodeNameCaseClass(23, "the name of this")) should (
+      equal( """{"name":"the name of this","winning-id":23}""") or
+      equal( """{"winning-id":23,"name":"the name of this"}""")
+    )
   }
 
   it should "seralize a generic case class" in {