Test methods escape execution

[andre15silva]

When running flacoco on the java-maven-junit-helloworld example from https://github.com/SpoonLabs/astor/tree/master/examples/java-maven-junit-helloworld, not all identified tests are executed.

[1950] WARN CoverageRunner - Test TestMethod=com.example.javamavenjunithelloworld.HelloAppTest#classInstanceForCodeCoverageTest result was not reported by test-runner.
[1950] WARN CoverageRunner - Test TestMethod=com.example.javamavenjunithelloworld.HelloAppTest#testBogusArgument result was not reported by test-runner.
[1950] WARN CoverageRunner - Test TestMethod=com.example.javamavenjunithelloworld.HelloAppTest#testDefaultArgument result was not reported by test-runner.
[1950] WARN CoverageRunner - Test TestMethod=com.example.javamavenjunithelloworld.HelloAppTest#testMain result was not reported by test-runner.
[1950] WARN CoverageRunner - Test TestMethod=com.example.javamavenjunithelloworld.HelloAppTest#testTooHighArgument result was not reported by test-runner.