Jacoco - ignore MyClass.1

Question

How can *.1 classes be ignored in Jacoco coverage?

I have the following in my POM:

<execution> <id>JaCoco Coverage Enforcement</id> <phase>verify</phase> <goals> <goal>check</goal> </goals> <configuration> <dataFile>${project.build.directory}/coverage-reports/jacoco-unit.exec</dataFile> <excludes> <exclude>**/MyClass.**</exclude> </excludes> <rules> ... </rules> </execution>

However, I get the following error message:

[WARNING] Rule violated for class com.mypackage.MyClass.1: lines covered ratio is 0.00, but expected minimum is 0.85

Update 12/19

Here's what's in the folder structure:

$ find . -iname 'MyClass*class' ./target/classes/com/mypackage/MyClass$1.class ./target/classes/com/mypackage/MyClass.class

Could you please clarify what do you have on disk - file MyClass.1.class or file 1.class in directory MyClass? Actually both look weird in case of plain Java. I'm guessing that you use some bytecode generation tool that generates such classes? — Godin
– Godin, Commented Dec 18, 2016 at 21:42
I added the disk data above. I'm actually not doing anything too funky and the project is a pretty simple Spring Boot app running under Java 8. — el n00b
– el n00b, Commented Dec 19, 2016 at 20:45

Godin · Accepted Answer · 2016-12-19 22:45:39Z

Exclusion pattern for verify goal can be **/MyClass$** if you want to exclude only file MyClass$1.class (note the dollar sign in place, where you had the dot). If you want to exclude both MyClass.class and MyClass$1.class, then pattern can be **/MyClass**.

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