diff --git a/build.gradle b/build.gradle
index 80b8b0f..aefd99c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,63 @@
 plugins {
-    id 'java'
+    id 'org.jetbrains.kotlin.jvm' version '1.3.70' apply false
+}
+
+allprojects {
+    apply plugin: 'java'
+    apply plugin: 'maven'
+    apply plugin: 'kotlin'
+
+    version = "0.1.0-SNAPSHOT"
+    group = "io.github.wulkanowy"
+
+    repositories {
+        mavenCentral()
+    }
+}
+
+subprojects {
+    apply plugin: 'jacoco'
+
+    sourceCompatibility = 1.8
+
+    compileKotlin {
+        kotlinOptions {
+            jvmTarget = "1.6"
+            javaParameters = true
+        }
+    }
+
+    dependencies {
+        implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
+        implementation "com.brsanthu:migbase64:2.2"
+        testImplementation "junit:junit:4.13"
+    }
+
+    jacocoTestReport {
+        reports {
+            xml.enabled true
+        }
+    }
+
+    test {
+        testLogging.showStandardStreams = false
+    }
+
+    group = "io.github.wulkanowy.signer"
+    if (project.plugins.hasPlugin('java')) {
+        task sourcesJar(type: Jar, dependsOn: classes) {
+            classifier = 'sources'
+            from sourceSets.main.allSource
+        }
+        task javadocJar(type: Jar, dependsOn: javadoc) {
+            classifier = 'javadoc'
+            from javadoc.destinationDir
+        }
+        artifacts {
+            archives sourcesJar
+            archives javadocJar
+        }
+    }
 }
 
 dependencies {
diff --git a/hebe-jvm/build.gradle b/hebe-jvm/build.gradle
index 9240b7d..a9ab90e 100644
--- a/hebe-jvm/build.gradle
+++ b/hebe-jvm/build.gradle
@@ -1,48 +1,4 @@
 plugins {
     id 'java'
-    id 'org.jetbrains.kotlin.jvm' version '1.3.70'
-    id 'jacoco'
-}
-
-group 'io.github.wulkanowy'
-version '0.1.0-SNAPSHOT'
-
-sourceCompatibility = 1.6
-
-repositories {
-    mavenCentral()
-}
-
-dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
-    implementation "com.brsanthu:migbase64:2.2"
-    testImplementation "junit:junit:4.13"
-}
-
-compileKotlin {
-    kotlinOptions.jvmTarget = "1.8"
-}
-compileTestKotlin {
-    kotlinOptions.jvmTarget = "1.8"
-}
-
-jacocoTestReport {
-    reports {
-        xml.enabled true
-    }
-}
-
-task sourcesJar(type: Jar, dependsOn: classes) {
-    classifier = 'sources'
-    from sourceSets.main.allSource
-}
-
-task javadocJar(type: Jar, dependsOn: javadoc) {
-    classifier = 'javadoc'
-    from javadoc.destinationDir
-}
-
-artifacts {
-    archives sourcesJar
-    archives javadocJar
+    id 'org.jetbrains.kotlin.jvm'
 }
diff --git a/jvm/build.gradle b/jvm/build.gradle
index f2ae868..a9ab90e 100644
--- a/jvm/build.gradle
+++ b/jvm/build.gradle
@@ -1,48 +1,4 @@
 plugins {
     id 'java'
-    id 'org.jetbrains.kotlin.jvm' version '1.3.70'
-    id 'jacoco'
-}
-
-group 'io.github.wulkanowy'
-version '0.1.0-SNAPSHOT'
-
-sourceCompatibility = 1.6
-
-repositories {
-    mavenCentral()
-}
-
-dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
-    implementation "com.brsanthu:migbase64:2.2"
-    testImplementation "junit:junit:4.13"
-}
-
-compileKotlin {
-    kotlinOptions.jvmTarget = "1.6"
-}
-compileTestKotlin {
-    kotlinOptions.jvmTarget = "1.6"
-}
-
-jacocoTestReport {
-    reports {
-        xml.enabled true
-    }
-}
-
-task sourcesJar(type: Jar, dependsOn: classes) {
-    classifier = 'sources'
-    from sourceSets.main.allSource
-}
-
-task javadocJar(type: Jar, dependsOn: javadoc) {
-    classifier = 'javadoc'
-    from javadoc.destinationDir
-}
-
-artifacts {
-    archives sourcesJar
-    archives javadocJar
+    id 'org.jetbrains.kotlin.jvm'
 }
diff --git a/settings.gradle b/settings.gradle
index 4252d2a..6d65301 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,2 +1,4 @@
+rootProject.name = 'uonet-request-signer'
+
 include 'hebe-jvm'
 include 'jvm'