X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fsal%2Fyang-prototype%2Fcode-generator%2Fyang-model-parser-impl%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fyang%2Fparser%2Fbuilder%2Fimpl%2FExtensionBuilder.java;h=764d2bf8dba0b445bdb95978d562653b68a0584e;hb=refs%2Fchanges%2F79%2F579%2F2;hp=a0ee47f7b8d13a7fc7540e4480fac53f7c48abeb;hpb=78e88bed85a7d616c22d3d974e92c383ffb98318;p=controller.git

diff --git a/opendaylight/sal/yang-prototype/code-generator/yang-model-parser-impl/src/main/java/org/opendaylight/controller/yang/parser/builder/impl/ExtensionBuilder.java b/opendaylight/sal/yang-prototype/code-generator/yang-model-parser-impl/src/main/java/org/opendaylight/controller/yang/parser/builder/impl/ExtensionBuilder.java
index a0ee47f7b8..764d2bf8db 100644
--- a/opendaylight/sal/yang-prototype/code-generator/yang-model-parser-impl/src/main/java/org/opendaylight/controller/yang/parser/builder/impl/ExtensionBuilder.java
+++ b/opendaylight/sal/yang-prototype/code-generator/yang-model-parser-impl/src/main/java/org/opendaylight/controller/yang/parser/builder/impl/ExtensionBuilder.java
@@ -37,11 +37,13 @@ public final class ExtensionBuilder extends AbstractSchemaNodeBuilder {
             instance.setStatus(status);
 
             // UNKNOWN NODES
-            final List<UnknownSchemaNode> unknownNodes = new ArrayList<UnknownSchemaNode>();
-            for (UnknownSchemaNodeBuilder un : addedUnknownNodes) {
-                unknownNodes.add(un.build());
+            if (unknownNodes == null) {
+                unknownNodes = new ArrayList<UnknownSchemaNode>();
+                for (UnknownSchemaNodeBuilder un : addedUnknownNodes) {
+                    unknownNodes.add(un.build());
+                }
+                Collections.sort(unknownNodes, Comparators.SCHEMA_NODE_COMP);
             }
-            Collections.sort(unknownNodes, Comparators.SCHEMA_NODE_COMP);
             instance.setUnknownSchemaNodes(unknownNodes);
 
             isBuilt = true;