For another example report, also have a look at the Author report on the Maven Author Plugin itself.

Summary

#Author	#Files	CS err/warn/inf	CS errors	CS warnings	CS infos	FindBugs violations	PMD violations	Lint4j warnings	JavaNCSS NCSS	JavaNCSS functions	JCoverage %lines	Cobertura %lines	Emma %lines	Clover TPC	All Tasks
3	6	19	19	0	0	2	7	1	23	11	33%	33%	33%	23%	3

Authors

Author	#Files	CS err/warn/inf	CS errors	CS warnings	CS infos	FindBugs violations	PMD violations	Lint4j warnings	JavaNCSS NCSS	JavaNCSS functions	JCoverage %lines	Cobertura %lines	Emma %lines	Clover TPC	All Tasks
Eric Ballet Baz	4	12	12	0	0	1	5	1	15	7	33%	33%	33%	22%	2
Régine Ballet Baz	1	4	4	0	0	1	2	0	5	2	0%	0%	0%	0%	0
Thomas Ballet Baz	2	7	7	0	0	0	1	0	7	4	46%	46%	46%	25%	1

Eric Ballet Baz

File	CS err/warn/inf	CS errors	CS warnings	CS infos	FindBugs violations	PMD violations	Lint4j warnings	JavaNCSS NCSS	JavaNCSS functions	JCoverage %lines	Cobertura %lines	Emma %lines	Clover TPC	All Tasks
org.apache.maven.author.sample.ISampleInterface	0	0	0	0	0	0	0	1	0	-	-	-	-	0
org.apache.maven.author.sample.SampleEricAndThomasAuthors	4	4	0	0	0	1	0	4	2	25 %	25 %	25 %	0 %	0
org.apache.maven.author.sample.SampleEricAuthor	2	2	0	0	0	1	0	4	2	75 %	75 %	75 %	66.7 %	1
org.apache.maven.author.sample.SampleEricAuthor2	6	6	0	0	1	3	1	6	3	0 %	0 %	0 %	0 %	1

Régine Ballet Baz

File	CS err/warn/inf	CS errors	CS warnings	CS infos	FindBugs violations	PMD violations	Lint4j warnings	JavaNCSS NCSS	JavaNCSS functions	JCoverage %lines	Cobertura %lines	Emma %lines	Clover TPC	All Tasks
org.apache.maven.author.sample.SampleRegineAuthor	4	4	0	0	1	2	0	5	2	0 %	0 %	0 %	0 %	0

Thomas Ballet Baz

File	CS err/warn/inf	CS errors	CS warnings	CS infos	FindBugs violations	PMD violations	Lint4j warnings	JavaNCSS NCSS	JavaNCSS functions	JCoverage %lines	Cobertura %lines	Emma %lines	Clover TPC	All Tasks
org.apache.maven.author.sample.SampleEricAndThomasAuthors	4	4	0	0	0	1	0	4	2	25 %	25 %	25 %	0 %	0
org.apache.maven.author.sample.SampleThomasAuthor	3	3	0	0	0	0	0	3	2	67 %	67 %	67 %	50 %	1