diff --git a/api/build.gradle b/api/build.gradle
index 58300c56..19ebdde7 100644
--- a/api/build.gradle
+++ b/api/build.gradle
@@ -11,9 +11,4 @@ repositories {
 
 dependencies {
     implementation "org.joml:joml:${jomlVersion}"
-}
-
-task relayDependencies(type: Copy) {
-    from configurations.runtimeClasspath
-    into file("build/dependencies")
 }
\ No newline at end of file
diff --git a/editor/build.gradle b/editor/build.gradle
index aa617105..5e5afe61 100644
--- a/editor/build.gradle
+++ b/editor/build.gradle
@@ -32,7 +32,9 @@ compileTestKotlin {
 }
 
 dependencies {
+    implementation project(":api")
     implementation project(":proto")
+
     implementation "org.jetbrains.kotlin:kotlin-stdlib"
     implementation "no.tornado:tornadofx:${tornadoFxVersion}"
     implementation platform("org.kordamp.ikonli:ikonli-bom:${ikonliVersion}")
@@ -55,14 +57,15 @@ task provideGameEngine(type: Copy) {
     into file("build/resources/main/engine")
 }
 
-task provideApiDependencies(type: Copy) {
-    dependsOn(":api:relayDependencies")
+task provideAPIWithDependences(type: Copy) {
+    dependsOn(":api:build")
 
-    from project(':api').file('build/dependencies')
+    from project(':api').file('build/libs')
+    from project(':api').configurations.runtimeClasspath
     into file("build/resources/main/dependencies")
 }
 
-task provideApi(type: Copy) {
+task provideAPISources(type: Copy) {
     from project(':api').file('src/main/java')
     into file('build/resources/main/api')
 
@@ -81,6 +84,6 @@ task provideApi(type: Copy) {
 
 processResources {
     dependsOn(provideGameEngine)
-    dependsOn(provideApiDependencies)
-    dependsOn(provideApi)
+    dependsOn(provideAPIWithDependences)
+    dependsOn(provideAPISources)
 }
\ No newline at end of file
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/compiler/JDKCompiler.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/compiler/JDKCompiler.kt
new file mode 100644
index 00000000..280c083c
--- /dev/null
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/compiler/JDKCompiler.kt
@@ -0,0 +1,66 @@
+package com.bartlomiejpluta.base.editor.code.build.compiler
+
+import com.bartlomiejpluta.base.editor.code.build.exception.BuildException
+import com.bartlomiejpluta.base.editor.common.logs.enumeration.Severity
+import com.bartlomiejpluta.base.editor.common.logs.model.Location
+import com.bartlomiejpluta.base.editor.event.AppendBuildLogsEvent
+import com.bartlomiejpluta.base.editor.file.model.FileSystemNode
+import com.bartlomiejpluta.base.editor.file.model.FileType
+import org.springframework.context.annotation.Primary
+import org.springframework.stereotype.Component
+import tornadofx.FX
+import java.io.File
+import java.util.*
+import javax.tools.Diagnostic
+import javax.tools.DiagnosticCollector
+import javax.tools.JavaFileObject
+import javax.tools.ToolProvider
+
+@Primary
+@Component
+class JDKCompiler : Compiler {
+   private val compiler = ToolProvider.getSystemJavaCompiler()
+
+   override fun compile(sourceDirectory: FileSystemNode, targetDirectory: File, classPath: Array<File>) {
+      val classpath = classPath.joinToString(";") { it.absolutePath }
+      val options = listOf("-g", "-d", targetDirectory.absolutePath, "-classpath", classpath)
+
+      val collector = DiagnosticCollector<JavaFileObject>()
+
+      val manager = compiler.getStandardFileManager(collector, null, null)
+      val sources = sourceDirectory.allChildren
+         .filter { it.type == FileType.FILE }
+         .mapNotNull { it as? FileSystemNode }
+         .map { it.file }
+         .let { manager.getJavaFileObjects(*it.toTypedArray()) }
+
+      val task = compiler.getTask(null, manager, collector, options, null, sources)
+
+      val success = task.call()
+
+      collector.diagnostics.forEach(this::fireDiagnosticEvent)
+
+      if (!success) {
+         throw BuildException()
+      }
+   }
+
+   private fun fireDiagnosticEvent(diagnostic: Diagnostic<out JavaFileObject>) {
+      val severity = when (diagnostic.kind!!) {
+         Diagnostic.Kind.ERROR -> Severity.ERROR
+         Diagnostic.Kind.WARNING -> Severity.WARNING
+         Diagnostic.Kind.MANDATORY_WARNING -> Severity.WARNING
+         Diagnostic.Kind.NOTE -> Severity.NOTE
+         Diagnostic.Kind.OTHER -> Severity.INFO
+      }
+
+      val location = Location(diagnostic.source.name, diagnostic.lineNumber, diagnostic.columnNumber)
+
+
+      FX.eventbus.fire(AppendBuildLogsEvent(severity, diagnostic.getMessage(null), location, TAG))
+   }
+
+   companion object {
+      private const val TAG = "Compiler"
+   }
+}
\ No newline at end of file
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/compiler/JaninoCompiler.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/compiler/JaninoCompiler.kt
index 2ea11a14..fb8b9e61 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/compiler/JaninoCompiler.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/compiler/JaninoCompiler.kt
@@ -1,16 +1,14 @@
 package com.bartlomiejpluta.base.editor.code.build.compiler
 
-import com.bartlomiejpluta.base.editor.code.api.APIProvider
 import com.bartlomiejpluta.base.editor.code.build.exception.BuildException
 import com.bartlomiejpluta.base.editor.code.build.model.FileNodeResourceAdapter
 import com.bartlomiejpluta.base.editor.common.logs.enumeration.Severity
+import com.bartlomiejpluta.base.editor.common.logs.model.Location
 import com.bartlomiejpluta.base.editor.event.AppendBuildLogsEvent
 import com.bartlomiejpluta.base.editor.file.model.FileSystemNode
 import com.bartlomiejpluta.base.editor.file.model.FileType
 import org.codehaus.commons.compiler.CompileException
-import org.codehaus.commons.compiler.util.resource.Resource
 import org.codehaus.janino.CompilerFactory
-import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.stereotype.Component
 import tornadofx.FX.Companion.eventbus
 import java.io.File
@@ -19,9 +17,6 @@ import java.io.File
 class JaninoCompiler : Compiler {
    private val compilerFactory = CompilerFactory()
 
-   @Autowired
-   private lateinit var apiProvider: APIProvider
-
    override fun compile(sourceDirectory: FileSystemNode, targetDirectory: File, classPath: Array<File>) = try {
       tryToCompile(sourceDirectory, targetDirectory, classPath)
 
@@ -38,32 +33,32 @@ class JaninoCompiler : Compiler {
    } catch (e: CompileException) {
       val locationIndex = e.location?.toString()?.length?.plus(2) ?: 0
       val message = e.message?.substring(locationIndex)
+      val location = Location(e.location.fileName, e.location.lineNumber.toLong(), e.location.columnNumber.toLong())
 
-      throw BuildException(Severity.ERROR, "Compiler", e.location, message, e)
+      throw BuildException(Severity.ERROR, TAG, location, message, e)
    }
 
    private fun tryToCompile(sourceDirectory: FileSystemNode, targetDirectory: File, classPath: Array<File>) {
-      val compilationUnits = prepareCompilationUnits(sourceDirectory)
+      val compilationUnits = sourceDirectory.allChildren
+         .filter { it.type == FileType.FILE }
+         .map(::FileNodeResourceAdapter)
+         .toTypedArray()
 
       compilerFactory.newCompiler().apply {
          setDestinationDirectory(targetDirectory, false)
 
          setClassPath(classPath)
 
-         setWarningHandler { handle, message, location ->
-            eventbus.fire(AppendBuildLogsEvent(Severity.WARNING, "$message ($handle)", location, "Compiler"))
+         setWarningHandler { handle, message, loc ->
+            val location = Location(loc.fileName, loc.lineNumber.toLong(), loc.columnNumber.toLong())
+            eventbus.fire(AppendBuildLogsEvent(Severity.WARNING, "$message ($handle)", location, TAG))
          }
 
          compile(compilationUnits)
       }
    }
 
-   private fun prepareCompilationUnits(sourceDirectory: FileSystemNode): Array<Resource> {
-      val sources = sourceDirectory.allChildren
-      val api = apiProvider.apiNode.allChildren
-      return (sources + api)
-         .filter { it.type == FileType.FILE }
-         .map(::FileNodeResourceAdapter)
-         .toTypedArray()
+   companion object {
+      private const val TAG = "Compiler"
    }
 }
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/exception/BuildException.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/exception/BuildException.kt
index a62ce85f..c67b0ff4 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/exception/BuildException.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/exception/BuildException.kt
@@ -1,17 +1,19 @@
 package com.bartlomiejpluta.base.editor.code.build.exception
 
 import com.bartlomiejpluta.base.editor.common.logs.enumeration.Severity
-import org.codehaus.commons.compiler.Location
+import com.bartlomiejpluta.base.editor.common.logs.model.Location
 
 class BuildException(
-   val severity: Severity,
-   val tag: String,
+   val severity: Severity?,
+   val tag: String?,
    val location: Location?,
    message: String?,
-   override val cause: Throwable
+   override val cause: Throwable?
 ) : Exception() {
-   constructor(severity: Severity, tag: String, message: String?, cause: Throwable)
+   constructor(severity: Severity?, tag: String?, message: String?, cause: Throwable?)
          : this(severity, tag, null, message, cause)
 
+   constructor() : this(null, null, null, null, null)
+
    override val message = message ?: ""
 }
\ No newline at end of file
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/game/DefaultGameEngineProvider.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/game/DefaultGameEngineProvider.kt
index 97447378..5cc044e2 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/game/DefaultGameEngineProvider.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/game/DefaultGameEngineProvider.kt
@@ -21,7 +21,7 @@ class DefaultGameEngineProvider : GameEngineProvider {
       try {
          tryToProvide(targetJar)
       } catch (e: Exception) {
-         throw BuildException(Severity.ERROR, "Engine Provider", e.message, e)
+         throw BuildException(Severity.ERROR, TAG, e.message, e)
       }
    }
 
@@ -35,5 +35,6 @@ class DefaultGameEngineProvider : GameEngineProvider {
 
    companion object {
       private const val GAME_ENGINE_JAR = "/engine/engine.jar"
+      private const val TAG = "Engine Provider"
    }
 }
\ No newline at end of file
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/pipeline/BuildPipelineService.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/pipeline/BuildPipelineService.kt
index 6ba456e1..deb24d95 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/pipeline/BuildPipelineService.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/pipeline/BuildPipelineService.kt
@@ -5,6 +5,6 @@ import javafx.concurrent.Task
 
 interface BuildPipelineService {
    val isRunningProperty: BooleanProperty
-   fun build(): Task<Unit>
+   fun build(): Task<Boolean>
    fun clean()
 }
\ No newline at end of file
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/pipeline/DefaultBuildPipelineService.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/pipeline/DefaultBuildPipelineService.kt
index 76162341..ec1edcf5 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/pipeline/DefaultBuildPipelineService.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/pipeline/DefaultBuildPipelineService.kt
@@ -56,21 +56,26 @@ class DefaultBuildPipelineService : BuildPipelineService {
    override fun build() = runAsync {
       latch?.locked?.takeIf { it }?.let {
          cancel()
-         return@runAsync
+         return@runAsync false
       }
 
       latch = Latch()
 
       try {
          projectContext.project?.let(this@DefaultBuildPipelineService::runPipeline)
+         return@runAsync true
       } catch (e: BuildException) {
-         val event = AppendBuildLogsEvent(e.severity, e.message, e.location, e.tag)
-         eventbus.fire(event)
+         e.severity?.let {
+            val event = AppendBuildLogsEvent(it, e.message, e.location, e.tag)
+            eventbus.fire(event)
+         }
+
+         eventbus.fire(AppendBuildLogsEvent(Severity.ERROR, "Build failed", tag = TAG))
       } finally {
          latch?.release()
       }
 
-      Unit
+      false
    }
 
    private fun runPipeline(project: Project) {
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/project/DefaultProjectAssembler.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/project/DefaultProjectAssembler.kt
index 39bc8c54..105c637a 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/project/DefaultProjectAssembler.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/build/project/DefaultProjectAssembler.kt
@@ -18,7 +18,7 @@ class DefaultProjectAssembler : ProjectAssembler {
       try {
          tryToAssembly(project, targetJar)
       } catch (e: Exception) {
-         throw BuildException(Severity.ERROR, "Project Assembler", e.message, e)
+         throw BuildException(Severity.ERROR, TAG, e.message, e)
       }
    }
 
@@ -29,4 +29,8 @@ class DefaultProjectAssembler : ProjectAssembler {
       packager.pack(project.entitySetsDirectory, targetJar, "BOOT-INF/classes/project/entsets")
       packager.copy(project.projectFile, targetJar, "BOOT-INF/classes/project")
    }
+
+   companion object {
+      private const val TAG = "Project Assembler"
+   }
 }
\ No newline at end of file
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/view/build/BuildLogsView.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/view/build/BuildLogsView.kt
index ee18eab7..2ec4f886 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/view/build/BuildLogsView.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/view/build/BuildLogsView.kt
@@ -1,14 +1,15 @@
 package com.bartlomiejpluta.base.editor.code.view.build
 
 import com.bartlomiejpluta.base.editor.common.logs.component.LogsPane
+import com.bartlomiejpluta.base.editor.common.logs.model.Location
 import com.bartlomiejpluta.base.editor.event.AppendBuildLogsEvent
 import com.bartlomiejpluta.base.editor.event.ClearBuildLogsEvent
 import com.bartlomiejpluta.base.editor.main.controller.MainController
 import com.bartlomiejpluta.base.editor.project.context.ProjectContext
-import org.codehaus.commons.compiler.Location
 import org.kordamp.ikonli.javafx.FontIcon
 import tornadofx.*
 import java.io.File
+import kotlin.math.max
 
 class BuildLogsView : View() {
    private val projectContext: ProjectContext by di()
@@ -29,8 +30,8 @@ class BuildLogsView : View() {
    }
 
    private fun locationClick(location: Location) {
-      projectContext.project?.codeFSNode?.findByFile(File(location.fileName))?.let {
-         mainController.openScript(it, location.lineNumber, 1)
+      projectContext.project?.codeFSNode?.findByFile(File(location.sourceName))?.let {
+         mainController.openScript(it, max(1, location.lineNumber.toInt()), 1)
       }
    }
 
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/component/LogsPane.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/component/LogsPane.kt
index 3a1a6790..0e181bde 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/component/LogsPane.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/component/LogsPane.kt
@@ -1,10 +1,10 @@
 package com.bartlomiejpluta.base.editor.common.logs.component
 
 import com.bartlomiejpluta.base.editor.common.logs.enumeration.Severity
+import com.bartlomiejpluta.base.editor.common.logs.model.Location
 import com.bartlomiejpluta.base.editor.common.logs.style.LogsPaneStyle
 import com.bartlomiejpluta.base.editor.common.logs.stylesheet.LogsPaneStylesheet
 import javafx.scene.layout.StackPane
-import org.codehaus.commons.compiler.Location
 import org.fxmisc.flowless.VirtualizedScrollPane
 import org.fxmisc.richtext.StyledTextArea
 import tornadofx.addClass
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/enumeration/Severity.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/enumeration/Severity.kt
index b7408f85..34e7d11d 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/enumeration/Severity.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/enumeration/Severity.kt
@@ -2,6 +2,7 @@ package com.bartlomiejpluta.base.editor.common.logs.enumeration
 
 enum class Severity {
    INFO,
+   NOTE,
    WARNING,
    ERROR
 }
\ No newline at end of file
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/model/Location.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/model/Location.kt
new file mode 100644
index 00000000..2df065a6
--- /dev/null
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/model/Location.kt
@@ -0,0 +1,5 @@
+package com.bartlomiejpluta.base.editor.common.logs.model
+
+data class Location(val sourceName: String, val lineNumber: Long, val columnNumber: Long) {
+   override fun toString() = if(lineNumber < 1) sourceName else "$sourceName:$lineNumber,$columnNumber"
+}
\ No newline at end of file
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/style/LogsPaneStyle.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/style/LogsPaneStyle.kt
index d7022205..a386b642 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/style/LogsPaneStyle.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/common/logs/style/LogsPaneStyle.kt
@@ -1,10 +1,10 @@
 package com.bartlomiejpluta.base.editor.common.logs.style
 
 import com.bartlomiejpluta.base.editor.common.logs.enumeration.Severity
+import com.bartlomiejpluta.base.editor.common.logs.model.Location
 import javafx.scene.Cursor
 import javafx.scene.paint.Color
 import javafx.scene.text.Text
-import org.codehaus.commons.compiler.Location
 
 class LogsPaneStyle(
    private val location: Location? = null,
@@ -23,6 +23,7 @@ class LogsPaneStyle(
       text.fill = when (severity) {
          Severity.WARNING -> Color.ORANGE
          Severity.ERROR -> Color.RED
+         Severity.NOTE -> Color.DARKGRAY
          Severity.INFO -> text.fill
       }
    }
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/event/AppendBuildLogsEvent.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/event/AppendBuildLogsEvent.kt
index 455e73a8..d4df6a71 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/event/AppendBuildLogsEvent.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/event/AppendBuildLogsEvent.kt
@@ -1,7 +1,7 @@
 package com.bartlomiejpluta.base.editor.event
 
 import com.bartlomiejpluta.base.editor.common.logs.enumeration.Severity
-import org.codehaus.commons.compiler.Location
+import com.bartlomiejpluta.base.editor.common.logs.model.Location
 import tornadofx.EventBus
 import tornadofx.FXEvent
 
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/process/runner/app/DefaultApplicationRunner.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/process/runner/app/DefaultApplicationRunner.kt
index 013c0e05..d3bb4f03 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/process/runner/app/DefaultApplicationRunner.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/process/runner/app/DefaultApplicationRunner.kt
@@ -8,7 +8,6 @@ import com.bartlomiejpluta.base.editor.process.runner.jar.JarRunner
 import com.bartlomiejpluta.base.editor.project.context.ProjectContext
 import com.bartlomiejpluta.base.editor.project.model.Project
 import javafx.beans.property.SimpleObjectProperty
-import javafx.event.EventHandler
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.stereotype.Component
 import tornadofx.*
@@ -43,7 +42,14 @@ class DefaultApplicationRunner : ApplicationRunner {
          if (project.buildOutputJarFile.exists() && project.buildOutputJarFile.isFile) {
             runApplication(project)
          } else {
-            pipelineService.build().onSucceeded = EventHandler { runApplication(project) }
+            val build = pipelineService.build()
+            build.setOnSucceeded {
+               if (build.value) {
+                  runApplication(project)
+               } else {
+                  isRunning = false
+               }
+            }
          }
       }
    }
diff --git a/editor/src/main/resources/java_templates/game_runner.ftl b/editor/src/main/resources/java_templates/game_runner.ftl
index b4ed7d66..30f77366 100644
--- a/editor/src/main/resources/java_templates/game_runner.ftl
+++ b/editor/src/main/resources/java_templates/game_runner.ftl
@@ -1,7 +1,7 @@
 package ${package};
 
-import com.bartlomiejpluta.base.api.runner.GameRunner;
-import com.bartlomiejpluta.base.api.context.Context;
+import com.bartlomiejpluta.base.api.game.runner.GameRunner;
+import com.bartlomiejpluta.base.api.game.context.Context;
 
 public class ${className} implements GameRunner {