Maven failsafe is not complaining that an inexistent profile was specified - maven

Question

I have two profiles in my pom:
<profiles>
<profile>
<id>functional-tests</id>
<build>
<plugins>
<plugin>
<artifactId>maven-failsafe-plugin</artifactId>
<configuration>
<testSourceDirectory>test/test-functional/java</testSourceDirectory>
<includes>
<include>**/*FT.java</include>
</includes>
</configuration>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>it-tests</id>
<build>
<plugins>
<plugin>
<artifactId>maven-failsafe-plugin</artifactId>
<configuration>
<testSourceDirectory>test/test-it/java</testSourceDirectory>
<includes>
<include>**/*IT.java</include>
</includes>
</configuration>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
...
I can trigger each of these two profiles like this:
mvn failsafe:integration-test -Pfunctional-tests
mvn failsafe:integration-test -Pit-tests
But when I run this:
mvn failsafe:integration-test -PrandomWord
It triggers it-tests profile. I was wondering why and if there is a way to have failsafe plugin output something like unrecognised profile.
Thank you for your help
In case it matters, here is my failsafe-plugin:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
</goals>
</execution>
</executions>
</plugin>

Answer 1

Answering your question about why it triggers it-tests. In fact, it does not activate any of the profiles, hence default plugin configuration is used which has **/*IT.java in include list. So, it runs all IT tests by default.
This is weird approach to manage plugin executions by profiles. I doubt there is a reasonable way to validate profile names as you describe. I would recommend another approach here.
Approach 1. Use <id> and cli with #
You could just specify two executions of the plugin with id and then you could do this: How to execute maven plugin execution directly from command line?
<plugin>
<artifactId>maven-failsafe-plugin</artifactId>
<executions>
<execution>
<id>it-tests</id>
<phase>none</phase> <!-- detach this execution from default lifecycle -->
<configuration>
<testSourceDirectory>test/test-it/java</testSourceDirectory>
<includes>
<include>**/*IT.java</include>
</includes>
</configuration>
</execution>
<execution>
<id>functional-tests</id>
<phase>none</phase> <!-- detach this execution from default lifecycle -->
<configuration>
<testSourceDirectory>test/test-ft/java</testSourceDirectory>
<includes>
<include>**/*FT.java</include>
</includes>
</configuration>
</execution>
</executions>
</plugin>
Now you could execute it from command line:
mvn failsafe:integration-test#it-tests
mvn failsafe:integration-test#functional-tests
Update: No need to specify goals as it is relevant to lifecycle only, we type it in command line anyway.
Approach 2. Use <skip> and properties
Keep both executions as a part of lifecycle but control execution by providing skip flags. I.e. define two properties e.g. skip.tests.it=true, skip.tests.ft=true and add <skip>${skip.tests.ft}</skip> to relevant configuration sections. Then you could just do
# run with no tests by default
mvn verify
# run with only FT
mvn verify -Dskip.tests.ft=false
# run with all tests
mvn verify -Dskip.tests.ft=false -Dskip.tests.it=false
to run full lifecycle together with desired tests.