diff --git a/j2k/tests/org/jetbrains/kotlin/j2k/AbstractJavaToKotlinConverterForWebDemoTest.kt.as42 b/j2k/tests/org/jetbrains/kotlin/j2k/AbstractJavaToKotlinConverterForWebDemoTest.kt.as42
new file mode 100644
index 00000000000..540efa8a98d
--- /dev/null
+++ b/j2k/tests/org/jetbrains/kotlin/j2k/AbstractJavaToKotlinConverterForWebDemoTest.kt.as42
@@ -0,0 +1,132 @@
+/*
+ * Copyright 2010-2015 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 org.jetbrains.kotlin.j2k
+
+import com.intellij.codeInsight.ContainerProvider
+import com.intellij.codeInsight.NullableNotNullManager
+import com.intellij.codeInsight.NullableNotNullManagerImpl
+import com.intellij.codeInsight.runner.JavaMainMethodProvider
+import com.intellij.core.CoreApplicationEnvironment
+import com.intellij.core.JavaCoreApplicationEnvironment
+import com.intellij.core.JavaCoreProjectEnvironment
+import com.intellij.lang.MetaLanguage
+import com.intellij.lang.jvm.facade.JvmElementProvider
+import com.intellij.openapi.extensions.Extensions
+import com.intellij.openapi.extensions.ExtensionsArea
+import com.intellij.openapi.util.Disposer
+import com.intellij.openapi.util.io.FileUtil
+import com.intellij.psi.*
+import com.intellij.psi.augment.PsiAugmentProvider
+import com.intellij.psi.augment.TypeAnnotationModifier
+import com.intellij.psi.compiled.ClassFileDecompilers
+import com.intellij.psi.impl.JavaClassSupersImpl
+import com.intellij.psi.impl.PsiTreeChangePreprocessor
+import com.intellij.psi.meta.MetaDataContributor
+import com.intellij.psi.util.JavaClassSupers
+import junit.framework.TestCase
+import org.jetbrains.kotlin.utils.PathUtil
+import java.io.File
+import java.net.URLClassLoader
+
+abstract class AbstractJavaToKotlinConverterForWebDemoTest : TestCase() {
+    val DISPOSABLE = Disposer.newDisposable()
+
+    fun doTest(javaPath: String) {
+        try {
+            val fileContents = FileUtil.loadFile(File(javaPath), true)
+            val javaCoreEnvironment: JavaCoreProjectEnvironment = setUpJavaCoreEnvironment()
+            translateToKotlin(fileContents, javaCoreEnvironment.project)
+        }
+        finally {
+            Disposer.dispose(DISPOSABLE)
+        }
+    }
+
+    fun setUpJavaCoreEnvironment(): JavaCoreProjectEnvironment {
+        // FIXME: There is no `Extensions.cleanRootArea` in 193 platform
+        // Extensions.cleanRootArea(DISPOSABLE)
+        val area = Extensions.getRootArea()
+
+        registerExtensionPoints(area)
+
+        val applicationEnvironment = JavaCoreApplicationEnvironment(DISPOSABLE)
+        val javaCoreEnvironment = object : JavaCoreProjectEnvironment(DISPOSABLE, applicationEnvironment) {
+            override fun preregisterServices() {
+                val projectArea = Extensions.getArea(project)
+                CoreApplicationEnvironment.registerExtensionPoint(projectArea, PsiTreeChangePreprocessor.EP_NAME, PsiTreeChangePreprocessor::class.java)
+                CoreApplicationEnvironment.registerExtensionPoint(projectArea, PsiElementFinder.EP_NAME, PsiElementFinder::class.java)
+                CoreApplicationEnvironment.registerExtensionPoint(projectArea, JvmElementProvider.EP_NAME, JvmElementProvider::class.java)
+            }
+        }
+
+        javaCoreEnvironment.project.registerService(NullableNotNullManager::class.java, object : NullableNotNullManagerImpl(javaCoreEnvironment.project) {
+            override fun isNullable(owner: PsiModifierListOwner, checkBases: Boolean) = !isNotNull(owner, checkBases)
+            override fun isNotNull(owner: PsiModifierListOwner, checkBases: Boolean) = true
+            override fun hasHardcodedContracts(element: PsiElement): Boolean = false
+            override fun getNullables() = emptyList<String>()
+            override fun setNullables(vararg p0: String) = Unit
+            override fun getNotNulls() = emptyList<String>()
+            override fun setNotNulls(vararg p0: String) = Unit
+            override fun getDefaultNullable() = ""
+            override fun setDefaultNullable(defaultNullable: String) = Unit
+            override fun getDefaultNotNull() = ""
+            override fun setDefaultNotNull(p0: String) = Unit
+            override fun setInstrumentedNotNulls(p0: List<String>) = Unit
+            override fun getInstrumentedNotNulls() = emptyList<String>()
+        })
+
+        applicationEnvironment.application.registerService(JavaClassSupers::class.java, JavaClassSupersImpl::class.java)
+
+        for (root in PathUtil.getJdkClassesRootsFromCurrentJre()) {
+            javaCoreEnvironment.addJarToClassPath(root)
+        }
+        val annotations: File? = findAnnotations()
+        if (annotations != null && annotations.exists()) {
+            javaCoreEnvironment.addJarToClassPath(annotations)
+        }
+        return javaCoreEnvironment
+    }
+
+    private fun registerExtensionPoints(area: ExtensionsArea) {
+        CoreApplicationEnvironment.registerExtensionPoint(area, FileContextProvider.EP_NAME, FileContextProvider::class.java)
+
+        CoreApplicationEnvironment.registerExtensionPoint(area, MetaDataContributor.EP_NAME, MetaDataContributor::class.java)
+        CoreApplicationEnvironment.registerExtensionPoint(area, PsiAugmentProvider.EP_NAME, PsiAugmentProvider::class.java)
+        CoreApplicationEnvironment.registerExtensionPoint(area, JavaMainMethodProvider.EP_NAME, JavaMainMethodProvider::class.java)
+
+        CoreApplicationEnvironment.registerExtensionPoint(area, ContainerProvider.EP_NAME, ContainerProvider::class.java)
+
+        CoreApplicationEnvironment.registerExtensionPoint(area, MetaLanguage.EP_NAME, MetaLanguage::class.java)
+        CoreApplicationEnvironment.registerExtensionPoint(area, JavaModuleSystem.EP_NAME, JavaModuleSystem::class.java)
+    }
+
+    fun findAnnotations(): File? {
+        var classLoader = JavaToKotlinTranslator::class.java.classLoader
+        while (classLoader != null) {
+            val loader = classLoader
+            if (loader is URLClassLoader) {
+                for (url in loader.urLs) {
+                    if ("file" == url.protocol && url.file!!.endsWith("/annotations.jar")) {
+                        return File(url.file!!)
+                    }
+                }
+            }
+            classLoader = classLoader.parent
+        }
+        return null
+    }
+}