diff --git a/.mvn/wrapper/maven-wrapper.properties b/.mvn/wrapper/maven-wrapper.properties
index bdc03cb2..e83fa695 100644
--- a/.mvn/wrapper/maven-wrapper.properties
+++ b/.mvn/wrapper/maven-wrapper.properties
@@ -1,2 +1,18 @@
-distributionUrl=https://mirrors.tuna.tsinghua.edu.cn/apache/maven/maven-3/3.5.4/binaries/apache-maven-3.5.4-bin.zip
-wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.3/maven-wrapper-0.5.3.jar
\ No newline at end of file
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar
diff --git a/mvnw b/mvnw
old mode 100644
new mode 100755
index d560832b..5643201c
--- a/mvnw
+++ b/mvnw
@@ -8,7 +8,7 @@
 # "License"); you may not use this file except in compliance
 # with the License.  You may obtain a copy of the License at
 #
-#    https://www.apache.org/licenses/LICENSE-2.0
+#    http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
@@ -19,7 +19,7 @@
 # ----------------------------------------------------------------------------
 
 # ----------------------------------------------------------------------------
-# Maven2 Start Up Batch script
+# Maven Start Up Batch script
 #
 # Required ENV vars:
 # ------------------
@@ -36,6 +36,10 @@
 
 if [ -z "$MAVEN_SKIP_RC" ] ; then
 
+  if [ -f /usr/local/etc/mavenrc ] ; then
+    . /usr/local/etc/mavenrc
+  fi
+
   if [ -f /etc/mavenrc ] ; then
     . /etc/mavenrc
   fi
@@ -145,7 +149,7 @@ if [ -z "$JAVACMD" ] ; then
       JAVACMD="$JAVA_HOME/bin/java"
     fi
   else
-    JAVACMD="`which java`"
+    JAVACMD="`\\unset -f command; \\command -v java`"
   fi
 fi
 
@@ -212,9 +216,9 @@ else
       echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
     fi
     if [ -n "$MVNW_REPOURL" ]; then
-      jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.3/maven-wrapper-0.5.3.jar"
+      jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
     else
-      jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.3/maven-wrapper-0.5.3.jar"
+      jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
     fi
     while IFS="=" read key value; do
       case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
@@ -233,9 +237,9 @@ else
           echo "Found wget ... using wget"
         fi
         if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
-            wget "$jarUrl" -O "$wrapperJarPath"
+            wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
         else
-            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath"
+            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
         fi
     elif command -v curl > /dev/null; then
         if [ "$MVNW_VERBOSE" = true ]; then
@@ -246,7 +250,7 @@ else
         else
             curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
         fi
-        
+
     else
         if [ "$MVNW_VERBOSE" = true ]; then
           echo "Falling back to using Java to download"
@@ -296,10 +300,17 @@ if $cygwin; then
     MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
 fi
 
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+export MAVEN_CMD_LINE_ARGS
+
 WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
 
 exec "$JAVACMD" \
   $MAVEN_OPTS \
+  $MAVEN_DEBUG_OPTS \
   -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
-  "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  "-Dmaven.home=${M2_HOME}" \
+  "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
   ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"
diff --git a/mvnw.cmd b/mvnw.cmd
index d06ac67f..8a15b7f3 100644
--- a/mvnw.cmd
+++ b/mvnw.cmd
@@ -7,7 +7,7 @@
 @REM "License"); you may not use this file except in compliance
 @REM with the License.  You may obtain a copy of the License at
 @REM
-@REM    https://www.apache.org/licenses/LICENSE-2.0
+@REM    http://www.apache.org/licenses/LICENSE-2.0
 @REM
 @REM Unless required by applicable law or agreed to in writing,
 @REM software distributed under the License is distributed on an
@@ -18,7 +18,7 @@
 @REM ----------------------------------------------------------------------------
 
 @REM ----------------------------------------------------------------------------
-@REM Maven2 Start Up Batch script
+@REM Maven Start Up Batch script
 @REM
 @REM Required ENV vars:
 @REM JAVA_HOME - location of a JDK home dir
@@ -26,7 +26,7 @@
 @REM Optional ENV vars
 @REM M2_HOME - location of maven2's installed home dir
 @REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
-@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
 @REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
 @REM     e.g. to debug Maven itself, use
 @REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
@@ -37,7 +37,7 @@
 @echo off
 @REM set title of command window
 title %0
-@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on'
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
 @if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
 
 @REM set %HOME% to equivalent of $HOME
@@ -46,8 +46,8 @@ if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
 @REM Execute a user defined script before this one
 if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
 @REM check for pre script, once with legacy .bat ending and once with .cmd ending
-if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
-if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
+if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
+if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %*
 :skipRcPre
 
 @setlocal
@@ -120,23 +120,27 @@ SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
 set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
 set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
 
-set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.3/maven-wrapper-0.5.3.jar"
+set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
 
-FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
     IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
 )
 
 @REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
 @REM This allows using the maven wrapper in projects that prohibit checking in binary data.
 if exist %WRAPPER_JAR% (
-    echo Found %WRAPPER_JAR%
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
 ) else (
-	if not "%MVNW_REPOURL%" == "" (
-	  SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.3/maven-wrapper-0.5.3.jar"
-	)
-    echo Couldn't find %WRAPPER_JAR%, downloading it ...
-	echo Downloading from: %DOWNLOAD_URL%
-	
+    if not "%MVNW_REPOURL%" == "" (
+        SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %DOWNLOAD_URL%
+    )
+
     powershell -Command "&{"^
 		"$webclient = new-object System.Net.WebClient;"^
 		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
@@ -144,11 +148,23 @@ if exist %WRAPPER_JAR% (
 		"}"^
 		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
 		"}"
-    echo Finished downloading %WRAPPER_JAR%
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
 )
 @REM End of extension
 
-%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% ^
+  %JVM_CONFIG_MAVEN_PROPS% ^
+  %MAVEN_OPTS% ^
+  %MAVEN_DEBUG_OPTS% ^
+  -classpath %WRAPPER_JAR% ^
+  "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
+  %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
 if ERRORLEVEL 1 goto error
 goto end
 
@@ -158,15 +174,15 @@ set ERROR_CODE=1
 :end
 @endlocal & set ERROR_CODE=%ERROR_CODE%
 
-if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
+if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost
 @REM check for post script, once with legacy .bat ending and once with .cmd ending
-if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
-if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
+if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
+if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd"
 :skipRcPost
 
 @REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
-if "%MAVEN_BATCH_PAUSE%" == "on" pause
+if "%MAVEN_BATCH_PAUSE%"=="on" pause
 
-if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
+if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE%
 
-exit /B %ERROR_CODE%
+cmd /C exit /B %ERROR_CODE%