Fix DotExpandingXContentParser

Author: mosche

server/src/main/java/org/elasticsearch/index/mapper/DotExpandingXContentParser.java

@@ -388,6 +388,14 @@ public XContentString optimizedTextOrNull() throws IOException {
         return super.optimizedTextOrNull();
     }
 
+    @Override
+    public XContentString optimizedText() throws IOException {
+        if (state == State.EXPANDING_START_OBJECT) {
+            throw new IllegalStateException("Can't get text on a " + currentToken() + " at " + getTokenLocation());
+        }
+        return super.optimizedText();
+    }
+
     @Override
     public String textOrNull() throws IOException {
         if (state == State.EXPANDING_START_OBJECT) {
@@ -396,6 +404,14 @@ public String textOrNull() throws IOException {
         return super.textOrNull();
     }
 
+    @Override
+    public String text() throws IOException {
+        if (state == State.EXPANDING_START_OBJECT) {
+            throw new IllegalStateException("Can't get text on a " + currentToken() + " at " + getTokenLocation());
+        }
+        return super.text();
+    }
+
     @Override
     public Number numberValue() throws IOException {
         if (state == State.EXPANDING_START_OBJECT) {