diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ConfigActor.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ConfigActor.kt
new file mode 100644
index 00000000..2417bc39
--- /dev/null
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ConfigActor.kt
@@ -0,0 +1,18 @@
+package com.beust.kobalt.api
+
+import java.util.*
+
+/**
+ * Actors that have one config object per project can use this helper class.
+ */
+interface IConfigActor<T> {
+    val configurations : HashMap<String, T>
+
+    fun configurationFor(project: Project?) = if (project != null) configurations[project.name] else null
+
+    fun addConfiguration(project: Project, configuration: T) = configurations.put(project.name, configuration)
+}
+
+open class ConfigActor<T>: IConfigActor<T> {
+    override val configurations : HashMap<String, T> = hashMapOf()
+}
diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ConfigPlugin.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ConfigPlugin.kt
deleted file mode 100644
index c05e3177..00000000
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ConfigPlugin.kt
+++ /dev/null
@@ -1,12 +0,0 @@
-package com.beust.kobalt.api
-
-/**
- * A plug-in that has some per-project configuration in the build file.
- */
-abstract public class ConfigPlugin<T> : BasePlugin() {
-    private val configurations = hashMapOf<String, T>()
-
-    fun configurationFor(project: Project?) = if (project != null) configurations[project.name] else null
-
-    fun addConfiguration(project: Project, configuration: T) = configurations.put(project.name, configuration)
-}
diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ConfigsActor.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ConfigsActor.kt
new file mode 100644
index 00000000..5ec4ce53
--- /dev/null
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ConfigsActor.kt
@@ -0,0 +1,19 @@
+package com.beust.kobalt.api
+
+import com.google.common.collect.ArrayListMultimap
+import com.google.common.collect.ListMultimap
+
+/**
+ * Actors that have more than config object per project can use this helper class.
+ */
+interface IConfigsActor<T> {
+    val configurations : ListMultimap<String, T>
+
+    fun configurationFor(project: Project?) = if (project != null) configurations[project.name] else null
+
+    fun addConfiguration(project: Project, configuration: T) = configurations.put(project.name, configuration)
+}
+
+open class ConfigsActor<T>: IConfigsActor<T> {
+    override val configurations = ArrayListMultimap.create<String, T>()
+}
diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ConfigsPlugin.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ConfigsPlugin.kt
deleted file mode 100644
index 845f6b24..00000000
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ConfigsPlugin.kt
+++ /dev/null
@@ -1,14 +0,0 @@
-package com.beust.kobalt.api
-
-import com.google.common.collect.ArrayListMultimap
-
-/**
- * A plug-in that has some per-project list of configurations in the build file.
- */
-abstract public class ConfigsPlugin<T> : BasePlugin() {
-    private val configurations = ArrayListMultimap.create<String, T>()
-
-    fun configurationFor(project: Project) = configurations[project.name]
-
-    fun addConfiguration(project: Project, configuration: T) = configurations.put(project.name, configuration)
-}
diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/BaseJvmPlugin.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/BaseJvmPlugin.kt
index 89e20af1..44d2fe81 100644
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/BaseJvmPlugin.kt
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/BaseJvmPlugin.kt
@@ -1,12 +1,17 @@
 package com.beust.kobalt.internal
 
-import com.beust.kobalt.api.ConfigPlugin
+import com.beust.kobalt.api.BasePlugin
+import com.beust.kobalt.api.ConfigActor
 import com.beust.kobalt.api.ICompilerFlagContributor
+import com.beust.kobalt.api.IConfigActor
 
 /**
  * Base class for JVM language plug-ins.
  */
-abstract class BaseJvmPlugin<T> : ConfigPlugin<T>(), ICompilerFlagContributor {
+abstract class BaseJvmPlugin<T>(open val configActor: ConfigActor<T>) :
+        BasePlugin(),
+        IConfigActor<T> by configActor,
+        ICompilerFlagContributor {
     companion object {
         // Run before other flag contributors
         val FLAG_CONTRIBUTOR_PRIORITY = ICompilerFlagContributor.DEFAULT_FLAG_PRIORITY - 10
diff --git a/src/main/kotlin/com/beust/kobalt/plugin/application/ApplicationPlugin.kt b/src/main/kotlin/com/beust/kobalt/plugin/application/ApplicationPlugin.kt
index 21647a2d..e8470eed 100644
--- a/src/main/kotlin/com/beust/kobalt/plugin/application/ApplicationPlugin.kt
+++ b/src/main/kotlin/com/beust/kobalt/plugin/application/ApplicationPlugin.kt
@@ -34,9 +34,10 @@ fun Project.application(init: ApplicationConfig.() -> Unit) {
 }
 
 @Singleton
-class ApplicationPlugin @Inject constructor(val executors: KobaltExecutors,
+class ApplicationPlugin @Inject constructor(val configActor: ConfigActor<ApplicationConfig>,
+                                            val executors: KobaltExecutors,
         val dependencyManager: DependencyManager, val taskContributor : TaskContributor)
-            : ConfigPlugin<ApplicationConfig>(), IRunnerContributor, ITaskContributor {
+            : BasePlugin(), IRunnerContributor, ITaskContributor, IConfigActor<ApplicationConfig> by configActor {
 
     companion object {
         const val PLUGIN_NAME = "Application"
diff --git a/src/main/kotlin/com/beust/kobalt/plugin/apt/AptPlugin.kt b/src/main/kotlin/com/beust/kobalt/plugin/apt/AptPlugin.kt
index 26713b27..b0080ec8 100644
--- a/src/main/kotlin/com/beust/kobalt/plugin/apt/AptPlugin.kt
+++ b/src/main/kotlin/com/beust/kobalt/plugin/apt/AptPlugin.kt
@@ -18,8 +18,8 @@ import javax.inject.Singleton
  * (outputDir, etc...).
  */
 @Singleton
-public class AptPlugin @Inject constructor(val depFactory: DepFactory)
-: ConfigPlugin<AptConfig>(), ICompilerFlagContributor, ISourceDirectoryContributor {
+class AptPlugin @Inject constructor(val depFactory: DepFactory, val configActor: ConfigActor<AptConfig>)
+    : BasePlugin(), ICompilerFlagContributor, ISourceDirectoryContributor, IConfigActor<AptConfig> by configActor {
 
     // ISourceDirectoryContributor
 
diff --git a/src/main/kotlin/com/beust/kobalt/plugin/java/JavaPlugin.kt b/src/main/kotlin/com/beust/kobalt/plugin/java/JavaPlugin.kt
index e7274fa3..fbe065e1 100644
--- a/src/main/kotlin/com/beust/kobalt/plugin/java/JavaPlugin.kt
+++ b/src/main/kotlin/com/beust/kobalt/plugin/java/JavaPlugin.kt
@@ -13,9 +13,9 @@ import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
-class JavaPlugin @Inject constructor(val javaCompiler: JavaCompiler)
-        : BaseJvmPlugin<JavaConfig>(), IDocContributor, ICompilerContributor, ITestSourceDirectoryContributor,
-            IBuildConfigContributor {
+class JavaPlugin @Inject constructor(val javaCompiler: JavaCompiler, override val configActor: ConfigActor<JavaConfig>)
+        : BaseJvmPlugin<JavaConfig>(configActor), IDocContributor, ICompilerContributor,
+            ITestSourceDirectoryContributor, IBuildConfigContributor {
     companion object {
         const val PLUGIN_NAME = "Java"
     }
diff --git a/src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinPlugin.kt b/src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinPlugin.kt
index c400a05c..4433650f 100644
--- a/src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinPlugin.kt
+++ b/src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinPlugin.kt
@@ -17,8 +17,9 @@ import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
-class KotlinPlugin @Inject constructor(val executors: KobaltExecutors)
-    : BaseJvmPlugin<KotlinConfig>(), IDocContributor, IClasspathContributor, ICompilerContributor,
+class KotlinPlugin @Inject constructor(val executors: KobaltExecutors,
+        override val configActor: ConfigActor<KotlinConfig>)
+    : BaseJvmPlugin<KotlinConfig>(configActor), IDocContributor, IClasspathContributor, ICompilerContributor,
         IBuildConfigContributor {
 
     companion object {
diff --git a/src/main/kotlin/com/beust/kobalt/plugin/packaging/PackagingPlugin.kt b/src/main/kotlin/com/beust/kobalt/plugin/packaging/PackagingPlugin.kt
index f2a4c2e9..4f1c582c 100644
--- a/src/main/kotlin/com/beust/kobalt/plugin/packaging/PackagingPlugin.kt
+++ b/src/main/kotlin/com/beust/kobalt/plugin/packaging/PackagingPlugin.kt
@@ -24,8 +24,8 @@ import javax.inject.Singleton
 class PackagingPlugin @Inject constructor(val dependencyManager : DependencyManager,
         val executors: KobaltExecutors, val jarGenerator: JarGenerator, val warGenerator: WarGenerator,
         val zipGenerator: ZipGenerator, val taskContributor: TaskContributor,
-        val pomFactory: PomGenerator.IFactory)
-            : ConfigPlugin<InstallConfig>(), ITaskContributor {
+        val pomFactory: PomGenerator.IFactory, val configActor: ConfigActor<InstallConfig>)
+            : BasePlugin(), IConfigActor<InstallConfig> by configActor, ITaskContributor {
 
     companion object {
         const val PLUGIN_NAME = "Packaging"