Robot Framework: Getting build error for missing Jar - maven-2

Question

I have started learning Robot Framework (with Java & selenium lib) and was trying to write a simple test case in it. Could you please help me with it.
I have copied tools jar in the mentioned lib and also in the dependancy
But still did not work
Following is the error
Failed to execute goal org.robotframework:robotframework-maven-plugin:1.4.6:run (default-cli) on project JavaRobot: Execution default-cli of goal org.robotframework:robotframework-maven-plugin:1.4.6:run failed: Plugin org.robotframework:robotframework-maven-plugin:1.4.6 or one of its dependencies could not be resolved: Could not find artifact com.sun:tools:jar:6 at specified path C:\Program Files\Java\jre1.8.0_101/../lib/tools.jar -> [Help 1]
Here is my POM.xml
<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.test.Robot</groupId>
<artifactId>JavaRobot</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>JavaRobot</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.robotframework</groupId>
<artifactId>robotframework</artifactId>
<version>2.8.4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.sun</groupId>
<artifactId>tools</artifactId>
<version>1.6</version>
<scope>system</scope>
<systemPath>C:\Program Files\Java\jdk1.8.0_101\lib\tools.jar</systemPath>
</dependency>
<dependency>
<groupId>com.github.markusbernhardt</groupId>
<artifactId>robotframework-selenium2library-java</artifactId>
<version>1.4.0.8</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.robotframework</groupId>
<artifactId>robotframework-maven-plugin</artifactId>
<version>1.4.6</version>
<executions>
<execution>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

Answer 1

Try to add the exclusion , I think it will fix your problem.
Example:
<dependency>
<groupId>com.github.markusbernhardt</groupId>
<artifactId>robotframework-selenium2library-java</artifactId>
<version>1.4.0.7</version>
<scope>test</scope>
<exclusions>
<exclusion>
<artifactId>tools</artifactId>
<groupId>com.sun</groupId>
</exclusion>
</exclusions>