Hello everyone, :)
I found a bug in the Cobertura Maven Plugin. I tried to contact the
project, but it didn't work. The mentioned issue tracking system (link) is
down as Codehaus is down:
http://jira.codehaus.org/browse/MCOBERTURA
Same goes for the mailing lists of the project.
Does anyone know a way to contact them?
Just for documentation purposes a short description of the bug:
I added the following to my pom.xml file with the Cobertura Maven Plugin
configuration:
<configuration>
<check>
<regexes>
<regex>
<pattern>org.myproject.*</pattern>
<lineRate>61</lineRate>
</regex>
</regexes>
</check>
</configuration>
After that I executed the Maven build and got the following error:
[INFO] --- cobertura-maven-plugin:2.7:check (default) @ myproject ---
[INFO] Cobertura 2.1.1 - GNU GPL License (NO WARRANTY) - See COPYRIGHT file
[ERROR] Exception in thread "main" java.lang.NumberFormatException: For
input string: "null"
at java.lang.NumberFormatException.forInputString(NumberFormatException.
java:65)
at java.lang.Integer.parseInt(Integer.java:580)
at java.lang.Integer.valueOf(Integer.java:766)
at net.sourceforge.cobertura.check.CheckCoverageMain.
inRangeAndDivideByOneHundred(CheckCoverageMain.java:77)
at net.sourceforge.cobertura.check.CheckCoverageMain.checkCoverage(
CheckCoverageMain.java:114)
at net.sourceforge.cobertura.check.CheckCoverageMain.main(
CheckCoverageMain.java:163)
The reason: The Cobertura Maven Plugin just is a wrapper for Cobertura. And
Cobertura expectes - if a regex is used - that a pattern, a aline rate as
well as a branch rate is submitted. And the Cobertura Maven Plugin doesn't
check this and fail the build beforehand with an error message describing
the problem. When I read the error message above I didn't know at all what
I did wrong or what went wrong. So I had to step through the code to find
the bug - which isn't satisfying at all.
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