We started code review using Crucible, so i searched for some code analysis maven plugins. PMD is a Java code analysis tool and used to find potential problems like unused code, duplicate code, unused variables… PMD is useful and easy:
pom.xml:
<reporting> <outputdirectory>target/reporting/pmd</outputdirectory> <plugins> <plugin> <groupid>org.apache.maven.plugins</groupid> <artifactid>maven-pmd-plugin</artifactid> </plugin> </plugins> </reporting>
I upgraded maven 2.0.4 to 2.0.7 and the i couldn’t compile the existing projects because of filtering problem – filtering files couldn’t be read, the source of problem was maven-assembly-plugin. I think such kind of incongruities generally may occur. The simplest solution of such problems is simply renaming the maven folder ….m2repositoryorgapache and installing the project again for full download of all maven and maven plugins 
The details of the problem and the solution is below:
