diff --git a/pom.xml.releaseBackup b/pom.xml.releaseBackup
deleted file mode 100644
index 141c170..0000000
--- a/pom.xml.releaseBackup
+++ /dev/null
@@ -1,215 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <groupId>osm.surveyor</groupId>
-  <artifactId>ReStamp</artifactId>
-  <version>3.8.1-SNAPSHOT</version>
-  <packaging>jar</packaging>
-  <scm>
-    <connection>scm:git:http://surveyor.mydns.jp/gitbucket/git/yuu/Restamp.git</connection>
-    <url>http://surveyor.mydns.jp/gitbucket/yuu/Restamp/wiki</url>
-    <developerConnection>scm:git:http://surveyor.mydns.jp/gitbucket/git/yuu/Restamp.git</developerConnection>
-    <tag>v3.8.1</tag>
-  </scm>
-
-  <!-- プロジェクトの名前、ロゴ、URL(右上) -->
-  <name>ReStamp</name>
-  <url>http://surveyor.mydns.jp/gitbucket/yuu/Restamp/wiki</url>
-
-  <licenses>
-    <license>
-      <name>MIT License</name>
-      <url>http://www.opensource.org/licenses/mit-license.php</url>
-    </license>
-  </licenses>
-  <developers>
-    <developer>
-      <name>Yuu Hayashi</name>
-      <email>hayashi.yuu@gmail.com</email>
-      <organization>surveyor</organization>
-      <organizationUrl>http://surveyor.mydns.jp/</organizationUrl>
-    </developer>
-  </developers>
-  
-  <properties>
-    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <java.version>1.8</java.version>
-    <maven.compiler.source>${java.version}</maven.compiler.source>
-    <maven.compiler.target>${java.version}</maven.compiler.target>
-  </properties>
-    
-  <!-- DEPLOY先の指定  mvn deploy -->
-  <distributionManagement>
-    <repository>
-      <id>surveyor.haya4</id>
-      <name>Internal Release Repository</name>
-      <url>http://surveyor.mydns.jp/archiva/repository/haya4/</url>
-    </repository>
-    <snapshotRepository>
-      <id>surveyor.snapshots</id>
-      <name>Archiva Managed Snapshot Repository</name>
-      <url>http://surveyor.mydns.jp/archiva/repository/snapshots/</url>
-    </snapshotRepository>
-  </distributionManagement>
-
-  <dependencies>
- 
-    <!-- for JUnit test -->
-    <dependency>
-      <groupId>org.hamcrest</groupId>
-      <artifactId>hamcrest-core</artifactId>
-      <version>2.2</version>
-      <scope>test</scope>
-      <type>jar</type>
-    </dependency>
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <version>4.12</version>
-      <scope>test</scope>
-      <type>jar</type>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.commons</groupId>
-      <artifactId>commons-compress</artifactId>
-      <version>1.14</version>
-      <scope>test</scope>
-      <type>jar</type>
-    </dependency>
-    <dependency>
-      <groupId>commons-codec</groupId>
-      <artifactId>commons-codec</artifactId>
-      <version>1.14</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.jacoco</groupId>
-      <artifactId>org.jacoco.agent</artifactId>
-      <version>0.8.1</version>
-      <scope>test</scope>
-      <classifier>runtime</classifier>
-    </dependency>
-  </dependencies>
-
-  <build>
-    <defaultGoal>install</defaultGoal>
-    
-    <plugins>
-      <!-- mvn site -->
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-site-plugin</artifactId>
-        <version>3.7.1</version>
-        <configuration>
-          <locales>ja</locales>
-          <inputEncoding>${project.build.sourceEncoding}</inputEncoding>
-          <outputEncoding>${site.encoding}</outputEncoding>
-        </configuration>
-      </plugin>
-
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-project-info-reports-plugin</artifactId>
-        <version>3.0.0</version>
-      </plugin>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.1</version>
-        <configuration>
-          <source>${java.version}</source>
-          <target>${java.version}</target>
-        </configuration>
-      </plugin>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-resources-plugin</artifactId>
-        <version>3.1.0</version>
-        <configuration>
-          <encoding>UTF-8</encoding>
-        </configuration>
-      </plugin>
-      
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-surefire-plugin</artifactId>
-        <version>3.0.0-M3</version>
-        <configuration>
-          <systemPropertyVariables>
-            <jacoco-agent.destfile>target/jacoco.exec</jacoco-agent.destfile>
-          </systemPropertyVariables>
-          <!-- ↓これがないとスタックトレースが出ない -->
-          <trimStackTrace>false</trimStackTrace>
-        </configuration>
-      </plugin>
-      
-      <plugin>
-        <groupId>org.jacoco</groupId>
-        <artifactId>jacoco-maven-plugin</artifactId>
-        <version>0.8.5</version>
-        <executions>
-          <execution>
-            <goals>
-              <goal>prepare-agent</goal>
-            </goals>
-          </execution>
-          <execution>
-            <id>default-report</id>
-            <goals>
-              <goal>report</goal>
-            </goals>
-          </execution>
-        </executions>
-      </plugin>
-            
-      <!-- mvn release:prepare -->
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-release-plugin</artifactId>
-        <version>2.5.3</version>
-        <configuration>
-          <releaseProfiles>install</releaseProfiles>
-          <tagNameFormat>v@{project.version}</tagNameFormat>
-        </configuration>
-      </plugin>
-    </plugins>
-  </build>
-  
-  <reporting>
-  	<plugins>
-      <!--  UnitTest report to site -->
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-surefire-report-plugin</artifactId>
-      </plugin>
-      
-      <!--  Javadoc report to site -->
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-javadoc-plugin</artifactId>
-        <configuration>
-          <source>1.8</source>
-          <show>protected</show>
-          <encoding>UTF-8</encoding>
-          <docencoding>UTF-8</docencoding>
-          <charset>UTF-8</charset>
-        </configuration>
-      </plugin>
-
-      <!--  Coverage report to site -->
-      <plugin>
-        <groupId>org.jacoco</groupId>
-        <artifactId>jacoco-maven-plugin</artifactId>
-        <version>0.8.5</version>
-        <reportSets>
-          <reportSet>
-            <reports>
-              <report>report</report>
-            </reports>
-          </reportSet>
-        </reportSets>
-      </plugin>
-    </plugins>
-    
-  </reporting>
-</project>
\ No newline at end of file
diff --git a/release.properties b/release.properties
deleted file mode 100644
index a62d4fe..0000000
--- a/release.properties
+++ /dev/null
@@ -1,18 +0,0 @@
-#release configuration
-#Sat May 16 05:46:53 JST 2020
-project.scm.osm.surveyor\:ReStamp.developerConnection=scm\:git\:http\://surveyor.mydns.jp/gitbucket/git/yuu/Restamp.git
-scm.tagNameFormat=v@{project.version}
-scm.tag=v3.8.1
-pushChanges=true
-scm.url=scm\:git\:http\://surveyor.mydns.jp/gitbucket/git/yuu/Restamp.git
-preparationGoals=clean verify
-project.rel.osm.surveyor\:ReStamp=3.8.1
-remoteTagging=true
-projectVersionPolicyId=default
-scm.commentPrefix=[maven-release-plugin] 
-project.scm.osm.surveyor\:ReStamp.tag=v3.8.1
-project.dev.osm.surveyor\:ReStamp=3.8.2-SNAPSHOT
-project.scm.osm.surveyor\:ReStamp.url=http\://surveyor.mydns.jp/gitbucket/yuu/Restamp/wiki
-project.scm.osm.surveyor\:ReStamp.connection=scm\:git\:http\://surveyor.mydns.jp/gitbucket/git/yuu/Restamp.git
-exec.snapshotReleasePluginAllowed=false
-completedPhase=end-release