[IOTDB-182] Change maven to 3.1

docs/Documentation-CHN/UserGuide/7-Session API/1-Session API.md

@@ -26,7 +26,7 @@
 ## 依赖
 
 * JDK >= 1.8
-* Maven >= 3.0
+* Maven >= 3.1
 
 ## 安装到本地 maven 库
 

docs/Documentation/UserGuide/4-Deployment and Management/1-Deployment.md

@@ -33,7 +33,7 @@ IoTDB provides you two installation methods, you can refer to the following sugg
 To install and use IoTDB, you need to have:
 
 1. Java >= 1.8 (Please make sure the environment path has been set)
-2. Maven >= 3.0 (If you want to compile and install IoTDB from source code)
+2. Maven >= 3.1 (If you want to compile and install IoTDB from source code)
 3. TsFile >= 0.7.0 (TsFile Github page: [https://github.com/thulab/tsfile](https://github.com/thulab/tsfile))
 4. IoTDB-JDBC >= 0.7.0 (IoTDB-JDBC Github page: [https://github.com/thulab/iotdb-jdbc](https://github.com/thulab/iotdb-jdbc))
 

docs/Documentation/UserGuide/6-JDBC API/1-JDBC API.md

@@ -26,7 +26,7 @@
 ## Dependencies
 
 * JDK >= 1.8
-* Maven >= 3.0
+* Maven >= 3.1
 
 ## How to package only jdbc project
 

docs/Documentation/UserGuide/7-Session API/1-Session API.md

@@ -26,7 +26,7 @@
 ## Dependencies
 
 * JDK >= 1.8
-* Maven >= 3.0
+* Maven >= 3.1
 
 ## How to package only client module
 

jdbc/README.md

@@ -24,7 +24,7 @@
 ## Dependencies
 
 * JDK >= 1.8
-* Maven >= 3.0
+* Maven >= 3.1
 
 ## How to package only jdbc project
 

tsfile/src/main/java/org/apache/iotdb/tsfile/encoding/encoder/RegularDataEncoder.java

@@ -118,7 +118,6 @@ public static class IntRegularEncoder extends RegularDataEncoder {
     /**
      * constructor of IntRegularEncoder which is a sub-class of RegularDataEncoder.
      *
-     * @param size - the number how many numbers to be packed into a block.
      */
     public IntRegularEncoder() {
       this(BLOCK_DEFAULT_SIZE);