Maven generating actual jar as .jar.original instead of .jar file

Basically I have a Maven Project and I am trying to generate a jar of my project using mvn clean compile package through spring tool suite using below pom.xml.

After the command is executed, I get 2 jar files generated in my target folder - {project-name}.jar & {project-name}.jar.original

The .jar file contains Spring boot framework class files having this contents while the .jar.original file contains actual class files of my application.

Snapshot of target folder

I also tried using mvn clean install but no luck with it. Moreover, the only 1 file is installed which is useless for me, because it does not contain any class files of my application but contains spring framework classes.

pom.xml

<?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>com.commonporject</groupId>
    <artifactId>commonporject</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>commonporject</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.0.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>com.ibm.db2.jcc</groupId>
            <artifactId>db2jcc4</artifactId>
            <version>10.1</version>
        </dependency>
        <!-- other dependencies -->
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <compilerVersion>1.8</compilerVersion>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

Console:

[INFO] Scanning for projects...
[INFO] 
[INFO] ----------------------< com.commonporject:commonporject >----------------------
[INFO] Building commonporject 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:3.1.0:clean (default-clean) @ commonporject ---
[INFO] Deleting C:\Users\Aadil\Documents\workspace-spring-tool-suite-4-4.0.0.RELEASE\commonporject\target
[INFO] 
[INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ commonporject ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] Copying 0 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ commonporject ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 6 source files to C:\Users\Aadil\Documents\workspace-spring-tool-suite-4-4.0.0.RELEASE\commonporject\target\classes
[INFO] 
[INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ commonporject ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] Copying 0 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ commonporject ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-resources-plugin:3.1.0:testResources (default-testResources) @ commonporject ---
[INFO] Not copying test resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:testCompile (default-testCompile) @ commonporject ---
[INFO] Not compiling test sources
[INFO] 
[INFO] --- maven-surefire-plugin:2.22.1:test (default-test) @ commonporject ---
[INFO] Tests are skipped.
[INFO] 
[INFO] --- maven-jar-plugin:3.1.0:jar (default-jar) @ commonporject ---
[INFO] Building jar: C:\Users\Aadil\Documents\workspace-spring-tool-suite-4-4.0.0.RELEASE\commonporject\target\commonporject-0.0.1-SNAPSHOT.jar
[INFO] 
[INFO] --- spring-boot-maven-plugin:2.1.0.RELEASE:repackage (repackage) @ commonporject ---
[INFO] Replacing main artifact C:\Users\Aadil\Documents\workspace-spring-tool-suite-4-4.0.0.RELEASE\commonporject\target\commonporject-0.0.1-SNAPSHOT.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 7.706 s
[INFO] Finished at: 2018-11-04T12:28:37+05:30
[INFO] ------------------------------------------------------------------------