diff --git a/pom.xml b/pom.xml
index 910b722..3c7a47b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,14 +3,19 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xxl</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>1.4.0-SNAPSHOT</version>
+	<version>${xxl-job.version}</version>
 	<packaging>pom</packaging>
+
 	<modules>
 		<module>xxl-job-admin</module>
 		<module>xxl-job-core</module>
 		<module>xxl-job-executor-example</module>
 	</modules>
 
+	<properties>
+		<xxl-job.version>1.4.0-SNAPSHOT</xxl-job.version>
+	</properties>
+
 	<build>
 		<plugins>
 			<plugin>

diff --git a/pom.xml b/pom.xml
index 910b722..3c7a47b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,14 +3,19 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xxl</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>1.4.0-SNAPSHOT</version>
+	<version>${xxl-job.version}</version>
 	<packaging>pom</packaging>
+
 	<modules>
 		<module>xxl-job-admin</module>
 		<module>xxl-job-core</module>
 		<module>xxl-job-executor-example</module>
 	</modules>
 
+	<properties>
+		<xxl-job.version>1.4.0-SNAPSHOT</xxl-job.version>
+	</properties>
+
 	<build>
 		<plugins>
 			<plugin>
diff --git a/xxl-job-admin/pom.xml b/xxl-job-admin/pom.xml
index 9816ce6..37ba131 100644
--- a/xxl-job-admin/pom.xml
+++ b/xxl-job-admin/pom.xml
@@ -4,10 +4,10 @@
 	<parent>
 		<groupId>com.xxl</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>1.4.0-SNAPSHOT</version>
+		<version>${xxl-job.version}</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
-	<version>1.3.1-SNAPSHOT</version>
+	<version>${xxl-job.version}</version>
 	<packaging>war</packaging>
 
 	<properties>
@@ -148,7 +148,7 @@
 		<dependency>
 			<groupId>com.xxl</groupId>
 			<artifactId>xxl-job-core</artifactId>
-			<version>1.3.2</version>
+			<version>${xxl-job.version}</version>
 		</dependency>
 
 	</dependencies>

diff --git a/pom.xml b/pom.xml
index 910b722..3c7a47b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,14 +3,19 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xxl</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>1.4.0-SNAPSHOT</version>
+	<version>${xxl-job.version}</version>
 	<packaging>pom</packaging>
+
 	<modules>
 		<module>xxl-job-admin</module>
 		<module>xxl-job-core</module>
 		<module>xxl-job-executor-example</module>
 	</modules>
 
+	<properties>
+		<xxl-job.version>1.4.0-SNAPSHOT</xxl-job.version>
+	</properties>
+
 	<build>
 		<plugins>
 			<plugin>
diff --git a/xxl-job-admin/pom.xml b/xxl-job-admin/pom.xml
index 9816ce6..37ba131 100644
--- a/xxl-job-admin/pom.xml
+++ b/xxl-job-admin/pom.xml
@@ -4,10 +4,10 @@
 	<parent>
 		<groupId>com.xxl</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>1.4.0-SNAPSHOT</version>
+		<version>${xxl-job.version}</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
-	<version>1.3.1-SNAPSHOT</version>
+	<version>${xxl-job.version}</version>
 	<packaging>war</packaging>
 
 	<properties>
@@ -148,7 +148,7 @@
 		<dependency>
 			<groupId>com.xxl</groupId>
 			<artifactId>xxl-job-core</artifactId>
-			<version>1.3.2</version>
+			<version>${xxl-job.version}</version>
 		</dependency>
 
 	</dependencies>
diff --git a/xxl-job-core/pom.xml b/xxl-job-core/pom.xml
index 3d00264..b3a4cad 100644
--- a/xxl-job-core/pom.xml
+++ b/xxl-job-core/pom.xml
@@ -4,10 +4,10 @@
 	<parent>
 		<groupId>com.xxl</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>1.4.0-SNAPSHOT</version>
+		<version>${xxl-job.version}</version>
 	</parent>
 	<artifactId>xxl-job-core</artifactId>
-	<version>1.3.2</version>
+	<version>${xxl-job.version}</version>
 
 	<dependencies>
 

diff --git a/pom.xml b/pom.xml
index 910b722..3c7a47b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,14 +3,19 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xxl</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>1.4.0-SNAPSHOT</version>
+	<version>${xxl-job.version}</version>
 	<packaging>pom</packaging>
+
 	<modules>
 		<module>xxl-job-admin</module>
 		<module>xxl-job-core</module>
 		<module>xxl-job-executor-example</module>
 	</modules>
 
+	<properties>
+		<xxl-job.version>1.4.0-SNAPSHOT</xxl-job.version>
+	</properties>
+
 	<build>
 		<plugins>
 			<plugin>
diff --git a/xxl-job-admin/pom.xml b/xxl-job-admin/pom.xml
index 9816ce6..37ba131 100644
--- a/xxl-job-admin/pom.xml
+++ b/xxl-job-admin/pom.xml
@@ -4,10 +4,10 @@
 	<parent>
 		<groupId>com.xxl</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>1.4.0-SNAPSHOT</version>
+		<version>${xxl-job.version}</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
-	<version>1.3.1-SNAPSHOT</version>
+	<version>${xxl-job.version}</version>
 	<packaging>war</packaging>
 
 	<properties>
@@ -148,7 +148,7 @@
 		<dependency>
 			<groupId>com.xxl</groupId>
 			<artifactId>xxl-job-core</artifactId>
-			<version>1.3.2</version>
+			<version>${xxl-job.version}</version>
 		</dependency>
 
 	</dependencies>
diff --git a/xxl-job-core/pom.xml b/xxl-job-core/pom.xml
index 3d00264..b3a4cad 100644
--- a/xxl-job-core/pom.xml
+++ b/xxl-job-core/pom.xml
@@ -4,10 +4,10 @@
 	<parent>
 		<groupId>com.xxl</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>1.4.0-SNAPSHOT</version>
+		<version>${xxl-job.version}</version>
 	</parent>
 	<artifactId>xxl-job-core</artifactId>
-	<version>1.3.2</version>
+	<version>${xxl-job.version}</version>
 
 	<dependencies>
 
diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java b/xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java
index a1e21bb..150af12 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java
@@ -9,7 +9,7 @@
 	/**
 	 * job handler <br><br>
 	 * the return Object will be and stored
-	 * @param param
+	 * @param params
 	 * @return 
 	 * @throws Exception
 	 */

diff --git a/pom.xml b/pom.xml
index 910b722..3c7a47b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,14 +3,19 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xxl</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>1.4.0-SNAPSHOT</version>
+	<version>${xxl-job.version}</version>
 	<packaging>pom</packaging>
+
 	<modules>
 		<module>xxl-job-admin</module>
 		<module>xxl-job-core</module>
 		<module>xxl-job-executor-example</module>
 	</modules>
 
+	<properties>
+		<xxl-job.version>1.4.0-SNAPSHOT</xxl-job.version>
+	</properties>
+
 	<build>
 		<plugins>
 			<plugin>
diff --git a/xxl-job-admin/pom.xml b/xxl-job-admin/pom.xml
index 9816ce6..37ba131 100644
--- a/xxl-job-admin/pom.xml
+++ b/xxl-job-admin/pom.xml
@@ -4,10 +4,10 @@
 	<parent>
 		<groupId>com.xxl</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>1.4.0-SNAPSHOT</version>
+		<version>${xxl-job.version}</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
-	<version>1.3.1-SNAPSHOT</version>
+	<version>${xxl-job.version}</version>
 	<packaging>war</packaging>
 
 	<properties>
@@ -148,7 +148,7 @@
 		<dependency>
 			<groupId>com.xxl</groupId>
 			<artifactId>xxl-job-core</artifactId>
-			<version>1.3.2</version>
+			<version>${xxl-job.version}</version>
 		</dependency>
 
 	</dependencies>
diff --git a/xxl-job-core/pom.xml b/xxl-job-core/pom.xml
index 3d00264..b3a4cad 100644
--- a/xxl-job-core/pom.xml
+++ b/xxl-job-core/pom.xml
@@ -4,10 +4,10 @@
 	<parent>
 		<groupId>com.xxl</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>1.4.0-SNAPSHOT</version>
+		<version>${xxl-job.version}</version>
 	</parent>
 	<artifactId>xxl-job-core</artifactId>
-	<version>1.3.2</version>
+	<version>${xxl-job.version}</version>
 
 	<dependencies>
 
diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java b/xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java
index a1e21bb..150af12 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java
@@ -9,7 +9,7 @@
 	/**
 	 * job handler <br><br>
 	 * the return Object will be and stored
-	 * @param param
+	 * @param params
 	 * @return 
 	 * @throws Exception
 	 */
diff --git a/xxl-job-executor-example/pom.xml b/xxl-job-executor-example/pom.xml
index 1644da6..a66cb34 100644
--- a/xxl-job-executor-example/pom.xml
+++ b/xxl-job-executor-example/pom.xml
@@ -4,10 +4,10 @@
 	<parent>
 		<groupId>com.xxl</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version> 1.4.0-SNAPSHOT</version>
+		<version>${xxl-job.version}</version>
 	</parent>
 	<artifactId>xxl-job-executor-example</artifactId>
-	<version>1.3.1-SNAPSHOT</version>
+	<version>${xxl-job.version}</version>
 	<packaging>war</packaging>
 
 	<properties>
@@ -79,7 +79,7 @@
 		<dependency>
 			<groupId>com.xxl</groupId>
 			<artifactId>xxl-job-core</artifactId>
-			<version>1.3.2</version>
+			<version>${xxl-job.version}</version>
 		</dependency>
 		
 	</dependencies>