[ONOS-5058][ONOS-4796][ONOS-4893]compiler annotation implementation + defect fix

Change-Id: Ie317409d9ab1d36e626433558b2d51f26daaac82
diff --git a/plugin/src/main/java/org/onosproject/yangutils/parser/impl/listeners/SubModuleListener.java b/plugin/src/main/java/org/onosproject/yangutils/parser/impl/listeners/SubModuleListener.java
index d2c4f48..f9c4a27 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/parser/impl/listeners/SubModuleListener.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/parser/impl/listeners/SubModuleListener.java
@@ -29,10 +29,13 @@
 import org.onosproject.yangutils.parser.impl.TreeWalkListener;
 
 import static org.onosproject.yangutils.datamodel.utils.GeneratedLanguage.JAVA_GENERATION;
+import static org.onosproject.yangutils.datamodel.utils.YangConstructType.MODULE_DATA;
 import static org.onosproject.yangutils.datamodel.utils.YangConstructType.SUB_MODULE_DATA;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.ENTRY;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.EXIT;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructListenerErrorMessage;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction
+        .constructListenerErrorMessage;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.INVALID_CHILD;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.INVALID_HOLDER;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.MISSING_CURRENT_HOLDER;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.MISSING_HOLDER;
@@ -126,6 +129,14 @@
             ((YangSubModule) tmpNode).setRevision(currentRevision);
         }
 
+        YangSubModule subModule = (YangSubModule) tmpNode;
+        if (subModule.getUnresolvedResolutionList(ResolvableType.YANG_COMPILER_ANNOTATION) != null
+                && subModule.getUnresolvedResolutionList(ResolvableType.YANG_COMPILER_ANNOTATION).size() != 0
+                && subModule.getChild() != null) {
+            throw new ParserException(constructListenerErrorMessage(INVALID_CHILD, MODULE_DATA,
+                    ctx.identifier().getText(), EXIT));
+        }
+
         try {
             ((YangReferenceResolver) listener.getParsedDataStack().peek())
                     .resolveSelfFileLinking(ResolvableType.YANG_IF_FEATURE);