new method to calculate test coverage (across modules)

main/pom.xml

@@ -49,6 +49,16 @@
 			<url>https://jitpack.io</url>
 		</repository>
 	</repositories>
+	
+	<pluginRepositories>
+		<pluginRepository>
+			<id>jacoco-snapshots</id>
+			<url>https://oss.sonatype.org/content/repositories/snapshots</url>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+		</pluginRepository>
+	</pluginRepositories>
 
 	<dependencyManagement>
 		<dependencies>
@@ -81,6 +91,12 @@
 				<version>${project.version}</version>
 				<scope>test</scope>
 			</dependency>
+			<dependency>
+				<groupId>org.cryptomator</groupId>
+				<artifactId>filesystem-invariants-tests</artifactId>
+				<version>${project.version}</version>
+				<scope>test</scope>
+			</dependency>
 			<dependency>
 				<groupId>org.cryptomator</groupId>
 				<artifactId>filesystem-nameshortening</artifactId>
@@ -280,6 +296,12 @@
 				<module>ant-kit</module>
 			</modules>
 		</profile>
+		<profile>
+			<id>test-coverage</id>
+			<modules>
+				<module>jacoco-report</module>
+			</modules>
+		</profile>
 	</profiles>
 
 	<build>
@@ -304,7 +326,7 @@
 				<plugin>
 					<groupId>org.jacoco</groupId>
 					<artifactId>jacoco-maven-plugin</artifactId>
-					<version>0.7.5.201505241946</version>
+					<version>0.7.7-SNAPSHOT</version>
 					<executions>
 						<execution>
 							<id>prepare-agent</id>
@@ -313,6 +335,12 @@
 							</goals>
 						</execution>
 					</executions>
+					<configuration>
+						<excludes>
+							<exclude>**/*_*</exclude>
+							<exclude>**/Dagger*</exclude>
+						</excludes>
+					</configuration>
 				</plugin>
 			</plugins>
 		</pluginManagement>
@@ -331,6 +359,9 @@
 				<artifactId>coveralls-maven-plugin</artifactId>
 				<version>4.0.0</version>
 				<configuration>
+					<jacocoReports>
+						<jacocoReport>jacoco-report/target/site/jacoco-aggregate/jacoco.xml</jacocoReport>
+					</jacocoReports>
 					<repoToken>${env.COVERALLS_REPO_TOKEN}</repoToken>
 				</configuration>
 			</plugin>