diff --git a/hugegraph-core/src/main/java/com/baidu/hugegraph/backend/tx/GraphIndexTransaction.java b/hugegraph-core/src/main/java/com/baidu/hugegraph/backend/tx/GraphIndexTransaction.java
index 90777fa6b..211cbff7a 100644
--- a/hugegraph-core/src/main/java/com/baidu/hugegraph/backend/tx/GraphIndexTransaction.java
+++ b/hugegraph-core/src/main/java/com/baidu/hugegraph/backend/tx/GraphIndexTransaction.java
@@ -511,7 +511,7 @@ public class GraphIndexTransaction extends AbstractTransaction {
 
             Set<Id> ids = InsertionOrderUtil.newSet();
             Iterator<BackendEntry> entries = super.query(query).iterator();
-            while(entries.hasNext()) {
+            while (entries.hasNext()) {
                 HugeIndex index = this.serializer.readIndex(graph(), query,
                                                             entries.next());
                 ids.addAll(index.elementIds());
diff --git a/hugegraph-dist/src/assembly/static/conf/hugegraph-community.license b/hugegraph-dist/src/assembly/static/conf/hugegraph-community.license
new file mode 100644
index 000000000..547df1d6a
Binary files /dev/null and b/hugegraph-dist/src/assembly/static/conf/hugegraph-community.license differ
diff --git a/hugegraph-dist/src/assembly/static/conf/hugegraph-evaluation.license b/hugegraph-dist/src/assembly/static/conf/hugegraph-evaluation.license
deleted file mode 100644
index 87a403991..000000000
Binary files a/hugegraph-dist/src/assembly/static/conf/hugegraph-evaluation.license and /dev/null differ
diff --git a/hugegraph-dist/src/main/java/com/baidu/hugegraph/cmd/InitStore.java b/hugegraph-dist/src/main/java/com/baidu/hugegraph/cmd/InitStore.java
index 100248367..4ca05898b 100644
--- a/hugegraph-dist/src/main/java/com/baidu/hugegraph/cmd/InitStore.java
+++ b/hugegraph-dist/src/main/java/com/baidu/hugegraph/cmd/InitStore.java
@@ -134,6 +134,6 @@ public class InitStore {
                 throw e;
             }
             break;
-        } while(retries-- > 0);
+        } while (retries-- > 0);
     }
 }
diff --git a/hugegraph-dist/src/main/resources/publicCerts.store b/hugegraph-dist/src/main/resources/public-certs.store
similarity index 100%
rename from hugegraph-dist/src/main/resources/publicCerts.store
rename to hugegraph-dist/src/main/resources/public-certs.store
diff --git a/hugegraph-dist/src/main/resources/verify-license.json b/hugegraph-dist/src/main/resources/verify-license.json
index ed2543009..9457ce9ce 100644
--- a/hugegraph-dist/src/main/resources/verify-license.json
+++ b/hugegraph-dist/src/main/resources/verify-license.json
@@ -1,7 +1,7 @@
 {
-  "subject": "hugegraph-evaluation",
+  "subject": "hugegraph-license",
   "public_alias": "publiccert",
   "store_password": "803b6cc3-d144-47e8-948f-ec8b39c8881e",
-  "publickey_path": "/publicCerts.store",
-  "license_path": "conf/hugegraph-evaluation.license"
+  "publickey_path": "/public-certs.store",
+  "license_path": "conf/hugegraph-community.license"
 }
diff --git a/hugegraph-example/src/main/java/com/baidu/hugegraph/example/Example1.java b/hugegraph-example/src/main/java/com/baidu/hugegraph/example/Example1.java
index 560056f27..a817a7665 100644
--- a/hugegraph-example/src/main/java/com/baidu/hugegraph/example/Example1.java
+++ b/hugegraph-example/src/main/java/com/baidu/hugegraph/example/Example1.java
@@ -241,7 +241,6 @@ public class Example1 {
             try {
                 tx.rollback();
             } catch (BackendException e2) {
-                // TODO Auto-generated catch block
                 e2.printStackTrace();
             }
         } finally {