diff --git a/compiler/plugin/maven/src/test/resources/identityextend/inter/issue/filea.yang b/compiler/plugin/maven/src/test/resources/identityextend/inter/issue/filea.yang
new file mode 100644
index 0000000..e69c86c
--- /dev/null
+++ b/compiler/plugin/maven/src/test/resources/identityextend/inter/issue/filea.yang
@@ -0,0 +1,23 @@
+module filea {
+    yang-version 1;
+    namespace
+      "http://netconfcentral.org/ns/file/a";
+    prefix fa;
+
+    import fileb {
+        prefix f2;
+    }
+
+    revision "2009-11-20" {
+      description
+        "sample module in progress.";
+    }
+
+    container cc1 {
+        leaf type  {
+            type identityref {
+                base f2:int-type;
+            }
+        }
+    }
+}
diff --git a/compiler/plugin/maven/src/test/resources/identityextend/inter/issue/fileb.yang b/compiler/plugin/maven/src/test/resources/identityextend/inter/issue/fileb.yang
new file mode 100644
index 0000000..cd45428
--- /dev/null
+++ b/compiler/plugin/maven/src/test/resources/identityextend/inter/issue/fileb.yang
@@ -0,0 +1,17 @@
+module fileb {
+    yang-version 1;
+    namespace
+      "http://netconfcentral.org/ns/file/b";
+    prefix fb;
+
+    revision "2009-11-20" {
+      description
+        "sample module in progress.";
+    }
+
+    identity int-type {
+    	description
+        "Base identity from which specific interface types are
+        derived.";
+    }
+}
diff --git a/compiler/plugin/maven/src/test/resources/identityextend/inter/issue/filec.yang b/compiler/plugin/maven/src/test/resources/identityextend/inter/issue/filec.yang
new file mode 100644
index 0000000..1c51fa1
--- /dev/null
+++ b/compiler/plugin/maven/src/test/resources/identityextend/inter/issue/filec.yang
@@ -0,0 +1,39 @@
+module filec {
+    yang-version 1;
+    namespace
+      "http://netconfcentral.org/ns/file/c";
+    prefix fc;
+
+    import fileb {
+        prefix f2;
+    }
+
+    revision "2009-11-20" {
+      description
+        "sample module in progress.";
+    }
+
+    identity ja-t {
+        base f2:int-type;
+    }
+
+    identity gtp {
+        base ja-t;
+    }
+
+    identity pdnEtherLoop1 {
+        base ja-t;
+    }
+
+    identity pdnEtherLoop2 {
+        base ja-t;
+    }
+
+    identity opticalChannelGroup {
+        base ja-t;
+    }
+
+    identity homepna {
+        base ja-t;
+    }
+}
diff --git a/compiler/plugin/maven/src/test/resources/identityextend/inter/test1/file-test1-a.yang b/compiler/plugin/maven/src/test/resources/identityextend/inter/test1/file-test1-a.yang
new file mode 100644
index 0000000..d1ba8c2
--- /dev/null
+++ b/compiler/plugin/maven/src/test/resources/identityextend/inter/test1/file-test1-a.yang
@@ -0,0 +1,21 @@
+module file-test1-a {
+    yang-version 1;
+    namespace
+      "http://test1.org/ns/file/a";
+    prefix t1fa;
+
+    revision "2009-11-21" {
+      description
+        "sample module in progress.";
+    }
+
+    identity id1;
+
+    identity id2 {
+       base "id1";
+    }
+
+    identity id3 {
+       base "id1";
+    }
+}
diff --git a/compiler/plugin/maven/src/test/resources/identityextend/inter/test1/file-test1-b.yang b/compiler/plugin/maven/src/test/resources/identityextend/inter/test1/file-test1-b.yang
new file mode 100644
index 0000000..31e085e
--- /dev/null
+++ b/compiler/plugin/maven/src/test/resources/identityextend/inter/test1/file-test1-b.yang
@@ -0,0 +1,31 @@
+module file-test1-b {
+    yang-version 1;
+    namespace
+      "http://test1.org/ns/file/b";
+    prefix t1fb;
+
+    import file-test1-a {
+        prefix t1fa;
+    }
+
+    revision "2009-11-21" {
+      description
+        "sample module in progress.";
+    }
+
+    identity id4 {
+       base t1fa:id2;
+    }
+
+    identity id5 {
+       base t1fa:id2;
+    }
+
+    identity id6 {
+       base t1fa:id1;
+    }
+
+    identity id7 {
+       base t1fa:id1;
+    }
+}
diff --git a/compiler/plugin/maven/src/test/resources/identityextend/inter/test1/file-test1-c.yang b/compiler/plugin/maven/src/test/resources/identityextend/inter/test1/file-test1-c.yang
new file mode 100644
index 0000000..74e31a6
--- /dev/null
+++ b/compiler/plugin/maven/src/test/resources/identityextend/inter/test1/file-test1-c.yang
@@ -0,0 +1,35 @@
+module file-test1-c {
+    yang-version 1;
+    namespace
+      "http://test1.org/ns/file/c";
+    prefix t1fc;
+
+    import file-test1-a {
+        prefix t1fa;
+    }
+
+    import file-test1-b {
+        prefix t1fb;
+    }
+
+    revision "2009-11-21" {
+      description
+        "sample module in progress.";
+    }
+
+    identity id8 {
+       base t1fa:id1;
+    }
+
+    identity id9 {
+       base t1fa:id1;
+    }
+
+    identity id10 {
+       base t1fb:id4;
+    }
+
+    identity id11 {
+       base t1fb:id4;
+    }
+}
diff --git a/compiler/plugin/maven/src/test/resources/identityextend/inter/test2/file-test2-a.yang b/compiler/plugin/maven/src/test/resources/identityextend/inter/test2/file-test2-a.yang
new file mode 100644
index 0000000..5ffa0d3
--- /dev/null
+++ b/compiler/plugin/maven/src/test/resources/identityextend/inter/test2/file-test2-a.yang
@@ -0,0 +1,27 @@
+module file-test2-a {
+    yang-version 1;
+    namespace
+      "http://test2.org/ns/file/a";
+    prefix t2fa;
+
+    import file-test2-b {
+        prefix t2fb;
+    }
+
+    revision "2009-11-21" {
+      description
+        "sample module in progress.";
+    }
+
+    identity id2 {
+       base "t2fb:id1";
+    }
+
+    identity id3 {
+       base "id2";
+    }
+
+    identity id4 {
+       base "id2";
+    }
+}
diff --git a/compiler/plugin/maven/src/test/resources/identityextend/inter/test2/file-test2-b.yang b/compiler/plugin/maven/src/test/resources/identityextend/inter/test2/file-test2-b.yang
new file mode 100644
index 0000000..3f17e24
--- /dev/null
+++ b/compiler/plugin/maven/src/test/resources/identityextend/inter/test2/file-test2-b.yang
@@ -0,0 +1,21 @@
+module file-test2-b {
+    yang-version 1;
+    namespace
+      "http://test2.org/ns/file/b";
+    prefix t2fb;
+
+    revision "2009-11-21" {
+      description
+        "sample module in progress.";
+    }
+
+    identity id1;
+
+    identity id5 {
+       base id1;
+    }
+
+    identity id6 {
+       base id1;
+    }
+}
diff --git a/compiler/plugin/maven/src/test/resources/identityextend/inter/test2/file-test2-c.yang b/compiler/plugin/maven/src/test/resources/identityextend/inter/test2/file-test2-c.yang
new file mode 100644
index 0000000..616d5e3
--- /dev/null
+++ b/compiler/plugin/maven/src/test/resources/identityextend/inter/test2/file-test2-c.yang
@@ -0,0 +1,63 @@
+module file-test2-c {
+    yang-version 1;
+    namespace
+      "http://test2.org/ns/file/c";
+    prefix t2fc;
+
+    import file-test2-b {
+        prefix t2fb;
+    }
+
+    revision "2009-11-21" {
+      description
+        "sample module in progress.";
+    }
+
+    identity id7 {
+       base t2fb:id6;
+    }
+
+    identity id8 {
+       base t2fb:id6;
+    }
+
+    identity id9 {
+       base t2fb:id6;
+    }
+
+    identity id10 {
+       base t2fb:id6;
+    }
+
+    identity id11 {
+       base id7;
+    }
+
+    identity id12 {
+       base id8;
+    }
+
+    identity id13 {
+       base id9;
+    }
+
+    identity id14 {
+       base id10;
+    }
+
+    identity id15 {
+       base id11;
+    }
+
+    identity id16 {
+       base id11;
+    }
+
+    identity id17 {
+       base id11;
+    }
+
+    identity id18 {
+       base id11;
+    }
+}
diff --git a/compiler/plugin/maven/src/test/resources/identityextend/self/test1/self-id1.yang b/compiler/plugin/maven/src/test/resources/identityextend/self/test1/self-id1.yang
new file mode 100644
index 0000000..82dd7b7
--- /dev/null
+++ b/compiler/plugin/maven/src/test/resources/identityextend/self/test1/self-id1.yang
@@ -0,0 +1,37 @@
+module self-id1 {
+
+    namespace "self-id1";
+
+    prefix self-id1;
+
+    identity id3 {
+       base "id2";
+    }
+
+    identity id8 {
+       base "id2";
+    }
+
+    identity id2 {
+        base "id1";
+    }
+
+    identity id1;
+
+    identity id4 {
+       base "id3";
+    }
+
+    identity id5 {
+       base "id4";
+    }
+
+    identity id6 {
+       base "id4";
+    }
+
+    identity id7 {
+       base "id6";
+    }
+
+}
\ No newline at end of file
diff --git a/compiler/plugin/maven/src/test/resources/identityextend/self/test2/self-id2.yang b/compiler/plugin/maven/src/test/resources/identityextend/self/test2/self-id2.yang
new file mode 100644
index 0000000..50a9d30
--- /dev/null
+++ b/compiler/plugin/maven/src/test/resources/identityextend/self/test2/self-id2.yang
@@ -0,0 +1,41 @@
+module self-id2 {
+
+    namespace "self-id2";
+
+    prefix self-id2;
+
+    identity id1;
+
+    identity id2 {
+        base "id1";
+    }
+
+    identity id5 {
+       base "id1";
+    }
+
+    identity id3 {
+       base "id2";
+    }
+
+    identity id6 {
+       base "id2";
+    }
+
+    identity id7 {
+       base "id5";
+    }
+
+    identity id8 {
+       base "id5";
+    }
+
+    identity id4 {
+       base "id3";
+    }
+
+    identity id9 {
+       base "id3";
+    }
+
+}
\ No newline at end of file