diff --git a/src/main/java/blockchain/query/QueryWrapper.java b/src/main/java/blockchain/query/QueryWrapper.java
new file mode 100644
index 0000000..24bdbff
--- /dev/null
+++ b/src/main/java/blockchain/query/QueryWrapper.java
@@ -0,0 +1,4 @@
+package blockchain.query;
+
+public class QueryWrapper {
+}
diff --git a/src/main/java/blockchain/query/TransactionWrapper.java b/src/main/java/blockchain/query/TransactionWrapper.java
new file mode 100644
index 0000000..0d2b352
--- /dev/null
+++ b/src/main/java/blockchain/query/TransactionWrapper.java
@@ -0,0 +1,4 @@
+package blockchain.query;
+
+public class TransactionWrapper {
+}
diff --git a/src/test/java/blockchain/queryWrapper/QueryWrapperTest.java b/src/test/java/blockchain/queryWrapper/QueryWrapperTest.java
new file mode 100644
index 0000000..cc7c697
--- /dev/null
+++ b/src/test/java/blockchain/queryWrapper/QueryWrapperTest.java
@@ -0,0 +1,4 @@
+package blockchain.queryWrapper;
+
+public class QueryWrapperTest {
+}
diff --git a/src/test/java/blockchain/queryWrapper/TransactionWrapperTest.java b/src/test/java/blockchain/queryWrapper/TransactionWrapperTest.java
new file mode 100644
index 0000000..53b642c
--- /dev/null
+++ b/src/test/java/blockchain/queryWrapper/TransactionWrapperTest.java
@@ -0,0 +1,4 @@
+package blockchain.queryWrapper;
+
+public class TransactionWrapperTest {
+}