Release approaching ;) `0.7.8` has been released: https://github.com/jacoco/jacoco/issues/467#issuecomment-266305876 Fixed by #798.
Update Jacoco to stable minor version 0.7.8 when released
See https://github.com/jacoco/jacoco/issues/467#issuecomment-264311016

The snapshot version of Jacoco are removed and could fail our CI. The version of Jacoco is required to build on JDK9
gradle/coverage.gradle
gradle/coverage.gradle
diff --git a/gradle/coverage.gradle b/gradle/coverage.gradle
index 9ad6740879..86fc3a190b 100644
--- a/gradle/coverage.gradle
+++ b/gradle/coverage.gradle
@@ -2,14 +2,8 @@ apply plugin: 'jacoco'
 
 // TODO later include subprojects, possible ideas https://gist.github.com/aalmiray/e6f54aa4b3803be0bcac
 
-repositories {
-    // TODO go back to the latest release of Jacoco. We need this snapshot
-    // because of https://github.com/jacoco/jacoco/pull/434 on JDK 9
-    maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
-}
-
 jacoco {
-    toolVersion = "0.7.8-20161102.122531-23"
+    toolVersion = "0.7.8"
 }
 
 task mockitoCoverage(type: JacocoReport, dependsOn: "test") {
