fixes #1874 CacheNamespaceRef causes IllegalArgumentException depending on the mapper order

As described in the report, `parseStatement()` actually parses result maps before parsing statement.
When parsing result map succeeds and parsing statement fails, `parseStatement()` tries to re-adding the same result map in the re-try phase and causes IllegalArgumentException.
This fix is isolating result map parsing from `parseStatement()`.

Author: harawata

src/main/java/org/apache/ibatis/builder/annotation/MapperAnnotationBuilder.java

@@ -130,13 +130,15 @@ public void parse() {
       assistant.setCurrentNamespace(type.getName());
       parseCache();
       parseCacheRef();
-      Method[] methods = type.getMethods();
-      for (Method method : methods) {
+      for (Method method : type.getMethods()) {
+        if (!canHaveStatement(method)) {
+          continue;
+        }
+        if (getSqlCommandType(method) == SqlCommandType.SELECT && method.getAnnotation(ResultMap.class) == null) {
+          parseResultMap(method);
+        }
         try {
-          // issue #237
-          if (!method.isBridge()) {
-            parseStatement(method);
-          }
+          parseStatement(method);
         } catch (IncompleteElementException e) {
           configuration.addIncompleteMethod(new MethodResolver(this, method));
         }
@@ -145,6 +147,11 @@ public void parse() {
     parsePendingMethods();
   }
 
+  private boolean canHaveStatement(Method method) {
+    // issue #237
+    return !method.isBridge() && !method.isDefault();
+  }
+
   private void parsePendingMethods() {
     Collection<MethodResolver> incompleteMethods = configuration.getIncompleteMethods();
     synchronized (incompleteMethods) {
@@ -351,7 +358,7 @@ void parseStatement(Method method) {
       if (resultMapAnnotation != null) {
         resultMapId = String.join(",", resultMapAnnotation.value());
       } else if (isSelect) {
-        resultMapId = parseResultMap(method);
+        resultMapId = generateResultMapName(method);
       }
 
       assistant.addMappedStatement(