ApplicationPlugin work.

src/main/kotlin/com/beust/kobalt/api/BasePlugin.kt

@@ -12,6 +12,12 @@ abstract public class BasePlugin : Plugin {
     override fun accept(project: Project) = true
     var plugins: Plugins by Delegates.notNull()
 
+    var context: KobaltContext by Delegates.notNull()
+
+    override fun apply(project: Project, context: KobaltContext) {
+        this.context = context
+    }
+
     protected val projects = arrayListOf<ProjectDescription>()
 
     fun addProject(project: Project, dependsOn: Array<out Project>) {

src/main/kotlin/com/beust/kobalt/api/Project.kt

@@ -8,7 +8,7 @@ import com.beust.kobalt.misc.KFiles
 import java.util.*
 
 open public class Project(
-        @Directive open var name: String? = null,
+        @Directive open var name: String,
         @Directive open var version: String? = null,
         @Directive open var directory: String = ".",
         @Directive open var buildDirectory: String? = KFiles.KOBALT_BUILD_DIR,
@@ -30,7 +30,7 @@ open public class Project(
     }
 
     override fun hashCode(): Int {
-        return name!!.hashCode()
+        return name.hashCode()
     }
 
     //
@@ -91,7 +91,7 @@ open public class Project(
 
     /** Used to disambiguate various name properties */
     @Directive
-    val projectName: String get() = name!!
+    val projectName: String get() = name
 }
 
 public class Sources(val project: Project, val sources: ArrayList<String>) {

src/main/kotlin/com/beust/kobalt/internal/JvmCompilerPlugin.kt

@@ -43,12 +43,8 @@ abstract class JvmCompilerPlugin @Inject constructor(
         log(2, "${project.name}: $s")
     }
 
-    var context: KobaltContext? = null
-
-
     override fun apply(project: Project, context: KobaltContext) {
         super.apply(project, context)
-        this.context = context
         context.pluginProperties.put(name, BUILD_DIR, project.buildDirectory + File.separator + "classes")
     }
 

src/main/kotlin/com/beust/kobalt/plugin/android/AndroidPlugin.kt

@@ -40,11 +40,9 @@ fun Project.android(init: AndroidConfig.() -> Unit) : AndroidConfig {
 public class AndroidPlugin @Inject constructor(val javaCompiler: JavaCompiler) : BasePlugin(), IClasspathContributor {
     override val name = "android"
 
-    lateinit var context: KobaltContext
-
     override fun apply(project: Project, context: KobaltContext) {
+        super.apply(project, context)
         log(1, "Applying plug-in Android on project $project")
-        this.context = context
         if (accept(project)) {
             project.compileDependencies.add(FileDependency(androidJar(project).toString()))
         }

src/main/kotlin/com/beust/kobalt/plugin/application/ApplicationPlugin.kt

@@ -1,14 +1,20 @@
 package com.beust.kobalt.plugin.application
 
+import com.beust.kobalt.JavaInfo
 import com.beust.kobalt.Plugins
+import com.beust.kobalt.SystemProperties
 import com.beust.kobalt.api.BasePlugin
 import com.beust.kobalt.api.Project
 import com.beust.kobalt.api.annotation.Directive
-import com.beust.kobalt.maven.DependencyManager
+import com.beust.kobalt.api.annotation.Task
-import com.beust.kobalt.maven.LocalRepo
+import com.beust.kobalt.internal.TaskResult
+import com.beust.kobalt.maven.KobaltException
 import com.beust.kobalt.misc.KobaltExecutors
+import com.beust.kobalt.misc.RunCommand
+import com.beust.kobalt.plugin.packaging.PackagingPlugin
 import com.google.inject.Inject
 import com.google.inject.Singleton
+import java.io.File
 
 @Directive
 class ApplicationConfig {
@@ -27,8 +33,7 @@ fun Project.application(init: ApplicationConfig.() -> Unit) {
 }
 
 @Singleton
-class ApplicationPlugin @Inject constructor(val dependencyManager : DependencyManager,
+class ApplicationPlugin @Inject constructor(val executors: KobaltExecutors) : BasePlugin() {
-        val executors: KobaltExecutors, val localRepo: LocalRepo) : BasePlugin() {
 
     companion object {
         const val NAME = "application"
@@ -36,8 +41,25 @@ class ApplicationPlugin @Inject constructor(val dependencyManager : DependencyMa
 
     override val name = NAME
 
+    val configs = hashMapOf<String, ApplicationConfig>()
+
     fun addConfig(project: Project, config: ApplicationConfig) {
-        println("Adding config $config")
+        configs.put(project.name, config)
+    }
+
+    @Task(name = "run", description = "Run the main class", runAfter = arrayOf("assemble"))
+    fun taskRun(project: Project): TaskResult {
+        configs[project.name].let { config ->
+            val java = JavaInfo.create(File(SystemProperties.javaBase)).javaExecutable!!
+            if (config != null && config.mainClass != null) {
+                val jarName = context.pluginProperties.get("packaging", PackagingPlugin.JAR_NAME) as String
+                val args = listOf("-classpath", jarName) + config.jvmArgs + config.mainClass!!
+                RunCommand(java.absolutePath).run(args)
+            } else {
+                throw KobaltException("No \"mainClass\" specified in the application{} part of project ${project.name}")
+            }
+        }
+        return TaskResult()
     }
 }
 

src/main/kotlin/com/beust/kobalt/plugin/java/JavaProject.kt

@@ -7,7 +7,7 @@ import com.beust.kobalt.misc.toString
 
 public class JavaProject(
         @Directive
-        override var name: String? = null,
+        override var name: String = "",
         @Directive
         override var version: String? = null,
         /** The absolute directory location of this project */

src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinProject.kt

@@ -7,7 +7,7 @@ import com.beust.kobalt.misc.toString
 
 public class KotlinProject(
         @Directive
-        override var name: String? = null,
+        override var name: String = "",
         @Directive
         override var version: String? = null,
         /** The absolute directory location of this project */
@@ -27,5 +27,5 @@ public class KotlinProject(
         : Project(name, version, directory, buildDirectory, group, artifactId, packaging, dependencies, ".kt",
                 projectInfo = KotlinProjectInfo()) {
 
-    override public fun toString() = toString("KotlinProject", "name", name!!)
+    override public fun toString() = toString("KotlinProject", "name", name)
 }

src/main/kotlin/com/beust/kobalt/plugin/packaging/PackagingPlugin.kt

@@ -44,6 +44,9 @@ class PackagingPlugin @Inject constructor(val dependencyManager : DependencyMana
         @ExportedProperty
         const val LIBS_DIR = "libsDir"
 
+        @ExportedProperty
+        const val JAR_NAME = "jarName"
+
         const val TASK_ASSEMBLE : String = "assemble"
     }
 
@@ -231,6 +234,9 @@ class PackagingPlugin @Inject constructor(val dependencyManager : DependencyMana
         outStream.flush()
         outStream.close()
         log(1, "  Created $result")
+
+        context.pluginProperties.put(name, JAR_NAME, result.absolutePath)
+
         return result
     }