Kapt3: Set correct compiler options when the annotation processing classpath is empty (KT-15146). Disable annotation processing in Javac task a bit earlier

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/Kapt3IT.kt

@@ -39,7 +39,7 @@ class Kapt3IT : BaseGradleIT() {
 
 
     private fun CompiledProject.assertKaptSuccessful() {
-        KAPT_SUCCESSFUL_REGEX.findAll(this.output).single()
+        KAPT_SUCCESSFUL_REGEX.findAll(this.output).count() > 0
     }
 
     @Test
@@ -151,7 +151,7 @@ class Kapt3IT : BaseGradleIT() {
         val project = Project("android-dagger", GRADLE_VERSION, directoryPrefix = "kapt2")
         val options = androidBuildOptions()
 
-        project.build("compileReleaseSources", options = options) {
+        project.build("compileReleaseSources", ":app:compileDebugUnitTestJavaWithJavac", options = options) {
             assertSuccessful()
             assertKaptSuccessful()
             assertFileExists("app/build/generated/source/kapt/release/com/example/dagger/kotlin/DaggerApplicationComponent.java")

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kapt2/android-dagger/app/src/test/java/SimpleClass.kt

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2010-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.myapp
+
+class SimpleClass