diff --git a/.idea/misc.xml b/.idea/misc.xml
index 8f712fe..c60d22d 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -3,6 +3,30 @@
   <component name="EntryPointsManager">
     <entry_points version="2.0" />
   </component>
+  <component name="NullableNotNullManager">
+    <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
+    <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
+    <option name="myNullables">
+      <value>
+        <list size="4">
+          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
+          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
+          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
+          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
+        </list>
+      </value>
+    </option>
+    <option name="myNotNulls">
+      <value>
+        <list size="4">
+          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
+          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
+          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
+          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
+        </list>
+      </value>
+    </option>
+  </component>
   <component name="ProjectLevelVcsManager" settingsEditedManually="false">
     <OptionsSetting value="true" id="Add" />
     <OptionsSetting value="true" id="Remove" />
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
index 6564d52..94a25f7 100644
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="VcsDirectoryMappings">
-    <mapping directory="" vcs="" />
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
   </component>
 </project>
\ No newline at end of file
diff --git a/mylibrary/src/main/java/test/googlepay/com/mylibrary/V.java b/mylibrary/src/main/java/test/googlepay/com/mylibrary/V.java
index 9c77914..0348cbc 100644
--- a/mylibrary/src/main/java/test/googlepay/com/mylibrary/V.java
+++ b/mylibrary/src/main/java/test/googlepay/com/mylibrary/V.java
@@ -4,4 +4,5 @@
  * Created by Administrator on 2016/7/4 0004.
  */
 public class V {
+    int a=1;
 }