diff --git a/build.gradle b/build.gradle
index 8db08f4fe7e..2706a56a42e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -88,3 +88,7 @@ gradle.buildFinished {
         }
     }
 }
+
+ext {
+    ext.jacocoVersion = "0.8.8"
+}
diff --git a/chainbase/build.gradle b/chainbase/build.gradle
index 79a246014d7..a20c38adb3c 100644
--- a/chainbase/build.gradle
+++ b/chainbase/build.gradle
@@ -2,7 +2,6 @@ description = "chainbase – a decentralized database for blockchain."
 
 // Dependency versions
 // ---------------------------------------
-def jacocoVersion = "0.8.0"
 def jansiVersion = "1.16"
 // --------------------------------------
 
@@ -42,7 +41,7 @@ test {
 }
 
 jacoco {
-    toolVersion = jacocoVersion // See http://www.eclemma.org/jacoco/.
+    toolVersion = rootProject.ext.jacocoVersion // See http://www.eclemma.org/jacoco/.
 }
 
 jacocoTestReport {
diff --git a/framework/build.gradle b/framework/build.gradle
index 4519f93e44d..14346a9e08f 100644
--- a/framework/build.gradle
+++ b/framework/build.gradle
@@ -18,9 +18,25 @@ def versions = [
 ]
 
 jacoco {
-    toolVersion = "0.8.8"
+    toolVersion = rootProject.ext.jacocoVersion
 }
 
+tasks.withType(Test) {
+    def excludesOut = [];
+    doFirst {
+        fileTree(project(':framework').buildDir.toString()+ "/classes/java/main").files.collect {
+            file -> file.absolutePath
+        }.forEach {
+            def start = it.indexOf("org/")
+            def dollarIndex = it.indexOf("\$")
+            def end = dollarIndex == -1 ? it.indexOf(".") : dollarIndex
+            excludesOut.add(it.substring(start, end) + "*")
+        }
+    }
+    jacoco {
+        excludes = excludesOut
+    }
+}
 
 configurations {
     checkstyleConfig
@@ -157,7 +173,7 @@ jacocoTestReport {
  */
 
 offlinsCoverage {
-    jacocoVersion = '0.8.8' // Optional. By default `0.8.8`
+    jacocoVersion = rootProject.ext.jacocoVersion // Optional. By default `0.8.8`
 
     reports {
         html.enabled.set true // Optional. By default `true`
diff --git a/plugins/build.gradle b/plugins/build.gradle
index b85a435dc30..45536dcc773 100644
--- a/plugins/build.gradle
+++ b/plugins/build.gradle
@@ -6,7 +6,7 @@ apply plugin: 'application'
 apply plugin: 'checkstyle'
 
 jacoco {
-    toolVersion = "0.8.4"
+    toolVersion = rootProject.ext.jacocoVersion
 }
 def versions = [
         checkstyle: '8.7',