Ignore code coverage for unit tests in EclEmma

I did the following steps:

1. Go to Preferences->Java->Code Coverage and
2. set the "Only path entries matching" option to src/main/java

It seems to work nicely.

The include/exclude filter settings in the Preferences window apply to class name/package patterns for all projects. To control the files at the folder/path level you must set it per-project.

1. Right-click the project
2. Select Coverage As | Coverage Configurations...
3. Select the project under the Junit subtree
4. Select the Coverage tab on the right
5. Uncheck the folder containing your tests, e.g., src/test/java
6. Click Apply
7. Click Close (or Coverage to run immediately)

These settings will apply every time you run the coverage in the future without having to open the configuration window.