surefire report: broken links with inner classes

pom:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-report-plugin</artifactId>
<version>2.20.1</version>
<configuration>
<!-- to show failed tests only -->
<showSuccess>false</showSuccess>
</configuration>
</plugin>

testclass as attached.

Then tying mvn surefire-report:report

yields waning
[warn] [XHTML Sink] Modified invalid anchor name: 'eu.simuline.relana.sysRelanaTest$TestAll' to 'eu.simuline.relana.sysRelanaTestTestAll'
and in the created html this can be seen:
dot between sys and RelanaTest missing.
Partially with $ , partially without so that links are broken
I attached also the hmtl.