Maven Config Plugins running twice - maven

Question

I have the following pom config. I added the cobertura plugin, and now pmd, cpd, findbugs, and test are running twice.
I understand that is because of my "phases" config, but I don't understand how can I achieve the following:
What I want is before I commit to the repo, build my app and check for pmd errors, findbugs errors, check my tests, and check my cobertura.
How can I achieve this? I am used to run "mvn clean package" before commit. It's that ok?
Here's my config:
...
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-pmd-plugin</artifactId>
<version>3.8</version>
<configuration>
<linkXref>false</linkXref>
<rulesets>
<!-- Custom Ruleset -->
<ruleset>codequality/pmd.xml</ruleset>
</rulesets>
</configuration>
<executions>
<execution>
<phase>compile</phase>
<goals>
<goal>pmd</goal>
<goal>cpd</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>findbugs-maven-plugin</artifactId>
<version>3.0.4</version>
<executions>
<execution>
<phase>compile</phase>
<goals>
<goal>check</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>cobertura-maven-plugin</artifactId>
<version>2.7</version>
<configuration>
<check>
<haltOnFailure>true</haltOnFailure>
<branchRate>70</branchRate>
<lineRate>70</lineRate>
<totalBranchRate>70</totalBranchRate>
<totalLineRate>70</totalLineRate>
<packageLineRate>70</packageLineRate>
<packageBranchRate>70</packageBranchRate>
</check>
</configuration>
<executions>
<execution>
<phase>compile</phase>
<goals>
<goal>clean</goal>
<goal>check</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>

Answer 1

Any maven plugin has a default execution phase. In this case, the plugins that you apply are executed in the verify phase (pmd-plugin). But you are defining it to run also in the compile phase. Removes the phase tag and lets it run in the verification phase.
<execution>
<!--<phase>compile</phase>-->
<goals>
<goal>...</goal>
...
</goals>
</execution>
Finally, the good practice to validate your project before a commit is to run:
mvn clean verify