diff --git a/java-example/decodesdk/src/net/irext/decode/sdk/IRDecode.java b/java-example/decodesdk/src/net/irext/decode/sdk/IRDecode.java
index e69dcca..d930533 100644
--- a/java-example/decodesdk/src/net/irext/decode/sdk/IRDecode.java
+++ b/java-example/decodesdk/src/net/irext/decode/sdk/IRDecode.java
@@ -4,7 +4,6 @@ import net.irext.decode.sdk.bean.ACStatus;
 import net.irext.decode.sdk.bean.TemperatureRange;
 import net.irext.decode.sdk.utils.Constants;
 
-
 /**
  * Filename:       IRDecode.java
  * Revised:        Date: 2017-04-22
@@ -27,7 +26,7 @@ public class IRDecode {
 
     private native int irOpenBinary(int category, int subCate, byte[] binaries, int binLength);
 
-    private native int[] irDecode(int keyCode, ACStatus acStatus, int changeWindDirection);
+    private native int[] irDecode(int keyCode, ACStatus acStatus);
 
     private native void irClose();
 
@@ -42,7 +41,6 @@ public class IRDecode {
     private native int irACGetSupportedWindDirection(int acMode);
 
     private static IRDecode mInstance;
-
     public static IRDecode getInstance() {
         if (null == mInstance) {
             mInstance = new IRDecode();
@@ -51,11 +49,10 @@ public class IRDecode {
     }
 
     private IRDecode() {
-        String libPath = "/data/irext/libir_decode.so";
+        String libPath = "/data/irext/libirdecode_jni.so";
         System.out.println("loading decode library " + libPath);
         System.load(libPath);
     }
-
     public String getVersion() {
         return irGetVersion();
     }
@@ -68,17 +65,17 @@ public class IRDecode {
         return irOpenBinary(category, subCate, binaries, binLength);
     }
 
-    public int[] decodeBinary(int keyCode, ACStatus acStatus, int changeWindDir) {
+    public int[] decodeBinary(int keyCode, ACStatus acStatus) {
         int []decoded;
         synchronized (mSync) {
             if (null == acStatus) {
                 acStatus = new ACStatus();
             }
             // validate ac status
-            if (!validateAcStatus(acStatus, keyCode, changeWindDir)) {
+            if (!validateAcStatus(acStatus, keyCode)) {
                 return new int[0];
             }
-            decoded = irDecode(keyCode, acStatus, changeWindDir);
+            decoded = irDecode(keyCode, acStatus);
         }
         return decoded;
     }
@@ -131,7 +128,7 @@ public class IRDecode {
         return irACGetSupportedWindDirection(acMode);
     }
 
-    private boolean validateAcStatus(ACStatus acStatus, int keyCode, int changeWindDir) {
+    private boolean validateAcStatus(ACStatus acStatus, int keyCode) {
         if (acStatus.getAcPower() != Constants.ACPower.POWER_ON.getValue() &&
             acStatus.getAcPower() != Constants.ACPower.POWER_OFF.getValue()) {
             return false;
@@ -152,7 +149,7 @@ public class IRDecode {
                 acStatus.getAcWindDir() > Constants.ACSwing.SWING_OFF.getValue()) {
             return false;
         }
-        if (changeWindDir != 0 && changeWindDir != 1) {
+        if (acStatus.getChangeWindDir() != 0 && acStatus.getChangeWindDir() != 1) {
             return false;
         }
         return true;
@@ -166,7 +163,7 @@ public class IRDecode {
                 1,
                 "/home/strawmanbobi/Downloads/test.bin")) {
             int[] decoded =
-                    irDecoder.decodeBinary(1, null, 0);
+                    irDecoder.decodeBinary(1, null);
             for (int i = 0; i < decoded.length; i++) {
                 System.out.print(decoded[i]);
                 if (i != decoded.length - 1) {
diff --git a/java-example/decodesdk/src/net/irext/decode/sdk/bean/ACStatus.java b/java-example/decodesdk/src/net/irext/decode/sdk/bean/ACStatus.java
index 9756e59..4aa6080 100644
--- a/java-example/decodesdk/src/net/irext/decode/sdk/bean/ACStatus.java
+++ b/java-example/decodesdk/src/net/irext/decode/sdk/bean/ACStatus.java
@@ -24,6 +24,7 @@ public class ACStatus {
     private int acDisplay;
     private int acSleep;
     private int acTimer;
+    private int changeWindDir;
 
     public ACStatus() {
         this.acPower = Constants.ACPower.POWER_OFF.getValue();
@@ -34,10 +35,11 @@ public class ACStatus {
         this.acTimer = 0;
         this.acDisplay = 0;
         this.acSleep = 0;
+        this.changeWindDir = 0;
     }
 
     public ACStatus(int acPower, int acMode, int acTemp, int acWindSpeed, int acWindDir,
-                    int acDisplay, int acSleep, int acTimer) {
+                    int acDisplay, int acSleep, int acTimer, int changeWindDir) {
         this.acPower = acPower;
         this.acTemp = acTemp;
         this.acMode = acMode;
@@ -46,6 +48,7 @@ public class ACStatus {
         this.acDisplay = acDisplay;
         this.acSleep = acSleep;
         this.acTimer = acTimer;
+        this.changeWindDir = changeWindDir;
     }
 
     public int getAcPower() {
@@ -112,4 +115,11 @@ public class ACStatus {
         this.acTimer = acTimer;
     }
 
+    public int getChangeWindDir() {
+        return changeWindDir;
+    }
+
+    public void setChangeWindDir(int changeWindDir) {
+        this.changeWindDir = changeWindDir;
+    }
 }
diff --git a/java-example/java-example.iml b/java-example/java-example.iml
new file mode 100644
index 0000000..d8959f5
--- /dev/null
+++ b/java-example/java-example.iml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/decodesdk/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file