I am using maven 3.0.4, JRE 1.7.0_09.
When I use mvn clean install all my tests passes and everything looks good - here is my surefire plugin configuration: 
<plugin>
    <version>2.12.4</version>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <configuration>
        <!-- -XX:-UseSplitVerifier is for java 7 -->
        <argLine>-XX:-UseSplitVerifier</argLine>
    </configuration>
</plugin> 
Now, when I mvn cobertura:cobertura some of my tests have errors like this one: 
Expecting a stackmap frame at branch target ....
And some more errors that made me understand that it is not running using JRE7 (for example, Encountered " "|" "| "" at line...)
Here is my cobertura plugin configuration:
<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>cobertura-maven-plugin</artifactId>
    <version>2.5.1</version>
    <configuration>
       <formats>
          <format>html</format>
          <format>xml</format>
       </formats>
       </configuration>
  </plugin>
And the reporting is:
<reporting>
    <plugins>
        <plugin>
           <groupId>org.codehaus.mojo</groupId>
           <artifactId>cobertura-maven-plugin</artifactId>
           <version>2.5.1</version>
           <configuration>
               <formats>
                   <format>html</format>
                   <format>xml</format>
               </formats>
            </configuration>
        </plugin>
    </plugins>
</reporting>
I saw a lot of threads that talk about this issue and the solution is to add this line <argLine>-XX:-UseSplitVerifier</argLine> but it does not help.
What am I doing wrong here?