diff --git a/.idea/isgd-shorten.iml b/.idea/isgd-shorten.iml
deleted file mode 100644
index b01780e..0000000
--- a/.idea/isgd-shorten.iml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="isgd-shorten" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$" external.system.id="GRADLE" external.system.module.group="net.thauvin.erik" external.system.module.version="0.9.2-SNAPSHOT" type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <excludeFolder url="file://$MODULE_DIR$/.gradle" />
-      <excludeFolder url="file://$MODULE_DIR$/build" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml
index 5d3d4fc..4290988 100644
--- a/.idea/jarRepositories.xml
+++ b/.idea/jarRepositories.xml
@@ -36,5 +36,10 @@
       <option name="name" value="maven" />
       <option name="url" value="https://oss.sonatype.org/content/repositories/snapshots" />
     </remote-repository>
+    <remote-repository>
+      <option name="id" value="maven" />
+      <option name="name" value="maven" />
+      <option name="url" value="https://packages.jetbrains.team/maven/p/ij/intellij-dependencies" />
+    </remote-repository>
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
deleted file mode 100644
index df66d51..0000000
--- a/.idea/modules.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/isgd-shorten.iml" filepath="$PROJECT_DIR$/.idea/isgd-shorten.iml" />
-    </modules>
-  </component>
-</project>
\ No newline at end of file
diff --git a/LICENSE.txt b/LICENSE.txt
index 15551d4..695e358 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,4 +1,4 @@
-Copyright (c) 2020-2021, Erik C. Thauvin (erik@thauvin.net)
+Copyright (c) 2020-2022, Erik C. Thauvin (erik@thauvin.net)
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/build.gradle.kts b/build.gradle.kts
index 668da7f..0eed035 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -3,18 +3,18 @@ import org.gradle.api.tasks.testing.logging.TestExceptionFormat
 import org.gradle.api.tasks.testing.logging.TestLogEvent
 
 plugins {
-    id("com.github.ben-manes.versions") version "0.39.0"
-    id("io.gitlab.arturbosch.detekt") version "1.18.1"
-    id("jacoco")
+    id("com.github.ben-manes.versions") version "0.40.0"
+    id("io.gitlab.arturbosch.detekt") version "1.19.0"
     id("java")
     id("java-library")
     id("maven-publish")
     id("net.thauvin.erik.gradle.semver") version "1.0.4"
-    id("org.jetbrains.dokka") version "1.5.30"
+    id("org.jetbrains.dokka") version "1.6.10"
+    id("org.jetbrains.kotlinx.kover") version "0.4.4"
     id("org.sonarqube") version "3.3"
     id("signing")
-    kotlin("jvm") version "1.5.31"
-    kotlin("kapt") version "1.5.31"
+    kotlin("jvm") version "1.6.10"
+    kotlin("kapt") version "1.6.10"
 }
 
 group = "net.thauvin.erik"
@@ -56,6 +56,7 @@ sonarqube {
         property("sonar.organization", "ethauvin-github")
         property("sonar.host.url", "https://sonarcloud.io")
         property("sonar.sourceEncoding", "UTF-8")
+        property("sonar.coverage.jacoco.xmlReportPaths", "${project.buildDir}/reports/kover/report.xml")
     }
 }
 
@@ -83,18 +84,6 @@ tasks {
         destination = file("$projectDir/pom.xml")
     }
 
-    jacoco {
-        toolVersion = "0.8.7"
-    }
-
-    jacocoTestReport {
-        dependsOn(test)
-        reports {
-            xml.required.set(true)
-            html.required.set(true)
-        }
-    }
-
     assemble {
         dependsOn(javadocJar)
     }
@@ -144,7 +133,7 @@ tasks {
     }
 
     "sonarqube" {
-        dependsOn(jacocoTestReport)
+        dependsOn(koverReport)
     }
 }
 
diff --git a/examples/build.gradle.kts b/examples/build.gradle.kts
index c0b8126..89cc257 100644
--- a/examples/build.gradle.kts
+++ b/examples/build.gradle.kts
@@ -2,8 +2,8 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
     id("application")
-    id("com.github.ben-manes.versions") version "0.39.0"
-    kotlin("jvm") version "1.5.31"
+    id("com.github.ben-manes.versions") version "0.40.0"
+    kotlin("jvm") version "1.6.10"
 }
 
 // ./gradlew run --args='https://www.example.com https://is.gd/Pt2sET'
diff --git a/examples/gradle/wrapper/gradle-wrapper.properties b/examples/gradle/wrapper/gradle-wrapper.properties
index ffed3a2..2e6e589 100644
--- a/examples/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index ffed3a2..2e6e589 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/src/main/kotlin/net/thauvin/erik/isgd/Isgd.kt b/src/main/kotlin/net/thauvin/erik/isgd/Isgd.kt
index b7e4268..161b259 100644
--- a/src/main/kotlin/net/thauvin/erik/isgd/Isgd.kt
+++ b/src/main/kotlin/net/thauvin/erik/isgd/Isgd.kt
@@ -1,7 +1,7 @@
 /*
  * Isgd.kt
  *
- * Copyright (c) 2020-2021, Erik C. Thauvin (erik@thauvin.net)
+ * Copyright (c) 2022, Erik C. Thauvin (erik@thauvin.net)
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/main/kotlin/net/thauvin/erik/isgd/IsgdException.kt b/src/main/kotlin/net/thauvin/erik/isgd/IsgdException.kt
index 2fabf3f..b6302f1 100644
--- a/src/main/kotlin/net/thauvin/erik/isgd/IsgdException.kt
+++ b/src/main/kotlin/net/thauvin/erik/isgd/IsgdException.kt
@@ -1,7 +1,7 @@
 /*
  * IsgdException.kt
  *
- * Copyright (c) 2020-2021, Erik C. Thauvin (erik@thauvin.net)
+ * Copyright (c) 2022, Erik C. Thauvin (erik@thauvin.net)
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/test/kotlin/net/thauvin/erik/isgd/IsgdTest.kt b/src/test/kotlin/net/thauvin/erik/isgd/IsgdTest.kt
index b3bd72e..c746e2c 100644
--- a/src/test/kotlin/net/thauvin/erik/isgd/IsgdTest.kt
+++ b/src/test/kotlin/net/thauvin/erik/isgd/IsgdTest.kt
@@ -1,7 +1,7 @@
 /*
  * IsgdTest.kt
  *
- * Copyright (c) 2020-2021, Erik C. Thauvin (erik@thauvin.net)
+ * Copyright (c) 2022, Erik C. Thauvin (erik@thauvin.net)
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -45,9 +45,9 @@ class IsgdTest {
     @Test
     fun testException() {
         assertFailsWith(
-                message = "URL is already shorten",
-                exceptionClass = IsgdException::class,
-                block = { Isgd.shorten(shortUrl) }
+            message = "URL is already shorten",
+            exceptionClass = IsgdException::class,
+            block = { Isgd.shorten(shortUrl) }
         )
 
         try {
@@ -58,6 +58,15 @@ class IsgdTest {
         }
     }
 
+    @Test
+    fun testLookup() {
+        assertFailsWith(
+            message = "empty url",
+            exceptionClass = IllegalArgumentException::class,
+            block = { Isgd.lookup("") }
+        )
+    }
+
     @Test
     fun testLookupDefault() {
         assertEquals(url, Isgd.lookup(shortUrl))
@@ -68,17 +77,32 @@ class IsgdTest {
     fun testLookupJson() {
         assertEquals("{ \"url\": \"$url\" }", Isgd.lookup(shortUrl, format = Format.JSON))
         assertEquals(
-                "test({ \"url\": \"$url\" });",
-                Isgd.lookup(shortUrl, callback = "test", format = Format.JSON),
-                "with callback"
+            "test({ \"url\": \"$url\" });",
+            Isgd.lookup(shortUrl, callback = "test", format = Format.JSON),
+            "with callback"
         )
     }
 
     @Test
     fun testLookupXml() {
         assertEquals(
-                "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?><output><url>$url</url></output>",
-                Isgd.lookup(shortUrl, format = Format.XML)
+            "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?><output><url>$url</url></output>",
+            Isgd.lookup(shortUrl, format = Format.XML)
+        )
+    }
+
+    @Test
+    fun testShorten() {
+        assertFailsWith(
+            message = "empty url",
+            exceptionClass = IllegalArgumentException::class,
+            block = { Isgd.shorten("") }
+        )
+
+        assertFailsWith(
+            message = "shorturl already take",
+            exceptionClass = IsgdException::class,
+            block = { Isgd.shorten(url, shorturl = "test") }
         )
     }
 
@@ -86,24 +110,25 @@ class IsgdTest {
     fun testShortenDefault() {
         assertEquals(shortUrl, Isgd.shorten(url))
         assertEquals(shortVgdUrl, Isgd.shorten(url, isVgd = true), "v.gd")
+        assertTrue(Isgd.shorten(url, logstats = true).matches("https://is.gd/\\w{6}".toRegex()), "with logstats")
     }
 
     @Test
     fun testShortenJson() {
         assertEquals("{ \"shorturl\": \"$shortUrl\" }", Isgd.shorten(url, format = Format.JSON))
         assertEquals(
-                "test({ \"shorturl\": \"$shortUrl\" });",
-                Isgd.shorten(url, callback = "test", format = Format.JSON),
-                "with callback"
+            "test({ \"shorturl\": \"$shortUrl\" });",
+            Isgd.shorten(url, callback = "test", format = Format.JSON),
+            "with callback"
         )
     }
 
     @Test
     fun testShortenXml() {
         assertEquals(
-                "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>" +
-                        "<output><shorturl>$shortUrl</shorturl></output>",
-                Isgd.shorten(url, format = Format.XML)
+            "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>" +
+                    "<output><shorturl>$shortUrl</shorturl></output>",
+            Isgd.shorten(url, format = Format.XML)
         )
     }