diff --git a/src/main/kotlin/com/beust/kobalt/plugin/publish/PublishPlugin.kt b/src/main/kotlin/com/beust/kobalt/plugin/publish/PublishPlugin.kt
index f060a651..9dc9f2ae 100644
--- a/src/main/kotlin/com/beust/kobalt/plugin/publish/PublishPlugin.kt
+++ b/src/main/kotlin/com/beust/kobalt/plugin/publish/PublishPlugin.kt
@@ -117,6 +117,6 @@ data class JCenterConfig(val project: Project) {
 public fun Project.jcenter(ini: JCenterConfig.() -> Unit) : JCenterConfig {
     val pd = JCenterConfig(this)
     pd.ini()
-    (Kobalt.findPlugin("publish") as PublishPlugin).addConfiguration(name!!, pd)
+    (Kobalt.findPlugin("publish") as PublishPlugin).addConfiguration(name, pd)
     return pd
 }
diff --git a/src/test/kotlin/com/beust/kobalt/internal/DynamicGraphTest.kt b/src/test/kotlin/com/beust/kobalt/internal/DynamicGraphTest.kt
index da3ed8f4..70a6772e 100644
--- a/src/test/kotlin/com/beust/kobalt/internal/DynamicGraphTest.kt
+++ b/src/test/kotlin/com/beust/kobalt/internal/DynamicGraphTest.kt
@@ -1,12 +1,10 @@
 package com.beust.kobalt.internal
 
-import com.beust.kobalt.misc.KobaltLogger
 import com.beust.kobalt.misc.Topological
 import com.beust.kobalt.misc.log
 import org.testng.Assert
 import org.testng.annotations.Test
-import java.util.ArrayList
-import java.util.HashSet
+import java.util.*
 
 public class DynamicGraphTest {
 
@@ -47,7 +45,7 @@ public class DynamicGraphTest {
         val factory = createFactory(runNodes, { true })
 
         DynamicGraphExecutor(dg, factory).run()
-        Assert.assertEquals(runNodes.size(), 3)
+        Assert.assertEquals(runNodes.size, 3)
     }