Fix big bug.

I had gotten order of MessagePackObject field from order of reflection methods.But it changes depends on order of calling in some environment(Scala's optimization or Java's specification?).
So I change to get it from order of reflection fields.

scala/src/main/scala/org/msgpack/JavassistTypeScalaTemplateBuilder.scala

@@ -396,7 +396,7 @@ class ScalaFieldEntryReader extends IFieldEntryReader{
     }*/
     // In some situation, reflection returns wrong ordered getter methods compare with declaration order.
     // So to avoid such situation, list up props with setter methods
-    for(s <- setters){
+    /*for(s <- setters){
       getters.get(s._1).map( g => {
         if(sameType_?(g,s._2)){
           val name = s._1
@@ -409,7 +409,42 @@ class ScalaFieldEntryReader extends IFieldEntryReader{
           props +=(name -> (g,s._2,f))
         }
       })
+    }*/
+    // order of methods changes depends on call order, NOT declaration.
+
+    def getterAndSetter(name : String) : Option[(Method,Method)] = {
+      if(getters.contains(name) && setters.contains(name)){
+        val getter = getters(name)
+        val setter = setters(name)
+        if(getter.getReturnType == setter.getParameterTypes()(0)){
+          Some(getter -> setter)
+        }else{
+          None
+        }
+      }else None
     }
+    def recursiveFind( clazz : Class[_]) : Unit = {
+      if(clazz.getSuperclass != classOf[Object]){
+        recursiveFind(clazz.getSuperclass)
+      }
+      for(f <- clazz.getDeclaredFields){
+        val name =f.getName
+        getterAndSetter(name) match{
+          case Some((g,s)) => props +=( name -> (g,s,f))
+          case None => {
+            if(name.startsWith("_")){
+              val sname = name.substring(1)
+              getterAndSetter(sname) match{
+                case Some((g,s)) => props +=( sname -> (g,s,f))
+                case None =>
+              }
+            }
+          }
+        }
+      }
+    }
+    recursiveFind(targetClass)
+
     props
   }
 

scala/src/test/scala/org/msgpack/CollectionPackSpec.scala

@@ -18,7 +18,7 @@ import scala.collection.mutable.LinkedList
  *
  */
 @RunWith(classOf[JUnitSuiteRunner])
-class CollectionPackSpec extends Specification with JUnit  {
+class CollectionPackTest extends Specification with JUnit  {
 
   "ScalaMessagePack" should {
     "pack scala-list" in {

scala/src/test/scala/org/msgpack/SampleClass.scala

@@ -32,12 +32,15 @@ class SampleClass2 extends SampleClass with SampleTrait {
   @Index(3)
   var sampleClass2Name : String = "sampleclass2"
 
+  // Support getter/setter but must have _{name} field!
+  private var _sampleClass2Num : Int = 0
   @Index(0)
-  def sampleClass2Num : Int = 22
-  def sampleClass2Num_=(v : Int) = {}
+  def sampleClass2Num : Int = _sampleClass2Num
+  def sampleClass2Num_=(v : Int) = {_sampleClass2Num = v}
 
   val notProperty : String ="This is not prop.Only getter"
 
+  private var _wrongValue : Int = 0
   // wrong property
   def wrongValue : Int = 53
   def wrongValue_=(v : String) = {}

scala/src/test/scala/org/msgpack/ScalaFieldEntryReaderSpec.scala

@@ -16,7 +16,7 @@ import org.specs.runner.{ JUnitSuiteRunner, JUnit }
  *
  */
 @RunWith(classOf[JUnitSuiteRunner])
-class ScalaFieldEntryReaderSpec extends Specification with JUnit  {
+class ScalaFieldEntryReaderTest extends Specification with JUnit  {
 
   "ScalaFieldEntryReader" should {
 
@@ -56,15 +56,16 @@ class ScalaFieldEntryReaderSpec extends Specification with JUnit  {
 
         val props = reader.findPropertyMethods(c)
 
-        println(props.keys)
+        println("props=" + props.keys)
 
         props.size must be_==(6)
-        props must haveKey("name")
-        props must haveKey("number")
-        props must haveKey("traitName")
-        props must haveKey("traitNum")
-        props must haveKey("sampleClass2Name")
-        props must haveKey("sampleClass2Num")
+        val l = props.toList
+        l(0)._1 must_== "name"
+        l(1)._1 must_== "number"
+        l(2)._1 must_== "sampleClass2Name"
+        l(3)._1 must_== "sampleClass2Num"
+        l(4)._1 must_== "traitName"
+        l(5)._1 must_== "traitNum"
       }
 
     }