Fix compatibility with JPS-standalone (KT-26777)

idea/idea-jps-common/src/org/jetbrains/kotlin/config/JpsUtils.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.config
+
+import com.intellij.openapi.application.ApplicationManager
+
+private const val JPS_STANDALONE_CLASS_NAME = "org.jetbrains.jps.build.Standalone"
+
+val isJps: Boolean by lazy {
+    val jpsStandaloneClassName = JPS_STANDALONE_CLASS_NAME.replace('.', '/') + ".class"
+
+    (object {}.javaClass.classLoader.getResource(jpsStandaloneClassName) != null)
+            || ApplicationManager.getApplication() == null
+}

idea/idea-jps-common/src/org/jetbrains/kotlin/platform/DefaultIdeTargetPlatformKindProvider.kt

@@ -5,8 +5,8 @@
 
 package org.jetbrains.kotlin.platform
 
-import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.components.ServiceManager
+import org.jetbrains.kotlin.config.isJps
 import org.jetbrains.kotlin.platform.impl.JvmIdePlatformKind
 
 interface DefaultIdeTargetPlatformKindProvider {
@@ -15,7 +15,7 @@ interface DefaultIdeTargetPlatformKindProvider {
     companion object {
         val defaultPlatform: IdePlatform<*, *>
             get() {
-                if (ApplicationManager.getApplication() == null) {
+                if (isJps) {
                     // TODO support passing custom platforms in JPS
                     return JvmIdePlatformKind.defaultPlatform
                 }

idea/idea-jps-common/src/org/jetbrains/kotlin/platform/IdePlatformKind.kt

@@ -6,9 +6,9 @@
 @file:JvmName("IdePlatformKindUtil")
 package org.jetbrains.kotlin.platform
 
-import com.intellij.openapi.application.ApplicationManager
-import org.jetbrains.kotlin.cli.common.arguments.CommonCompilerArguments
 import org.jetbrains.kotlin.extensions.ApplicationExtensionDescriptor
+import org.jetbrains.kotlin.cli.common.arguments.CommonCompilerArguments
+import org.jetbrains.kotlin.config.isJps
 import org.jetbrains.kotlin.platform.impl.CommonIdePlatformKind
 import org.jetbrains.kotlin.platform.impl.JsIdePlatformKind
 import org.jetbrains.kotlin.platform.impl.JvmIdePlatformKind
@@ -35,7 +35,8 @@ abstract class IdePlatformKind<Kind : IdePlatformKind<Kind>> {
 
     companion object {
         // We can't use the ApplicationExtensionDescriptor class directly because it's missing in the JPS process
-        private val extension = ApplicationManager.getApplication()?.let {
+        private val extension = run {
+            if (isJps) return@run null
             ApplicationExtensionDescriptor("org.jetbrains.kotlin.idePlatformKind", IdePlatformKind::class.java)
         }