diff --git a/nj2k/src/org/jetbrains/kotlin/nj2k/ConversionsRunner.kt b/nj2k/src/org/jetbrains/kotlin/nj2k/ConversionsRunner.kt
index f5801f9bf0f..1555ac82a86 100644
--- a/nj2k/src/org/jetbrains/kotlin/nj2k/ConversionsRunner.kt
+++ b/nj2k/src/org/jetbrains/kotlin/nj2k/ConversionsRunner.kt
@@ -21,76 +21,73 @@ import org.jetbrains.kotlin.nj2k.tree.JKTreeRoot
 
 object ConversionsRunner {
 
-    private fun createRootConversion(context: NewJ2kConverterContext) =
-        batchPipe {
-            //Java --> Kotlin conversions
-            +NonCodeElementsConversion()
-            +JavaModifiersConversion(context)
-            +JavaAnnotationsConversion(context)
-            +AnnotationClassConversion(context)
-            +AnnotationConversion(context)
-            +ModalityConversion(context)
-            +FunctionAsAnonymousObjectToLambdaConversion()
-            +ReturnStatementInLambdaExpressionConversion()
-            +BoxedTypeOperationsConversion(context)
-            +AssignmentAsExpressionToAlsoConversion(context)
-            +AssignmentStatementValCreationConversion(context)
-            +AssignmentStatementOperatorConversion()
-            +AssignmentStatementSimplifyValConversion()
-            +AssignmentStatementSimplifyAlsoConversion()
-            +AssignmentStatementSplitAlsoConversion()
-            +PolyadicExpressionConversion()
-            +OperatorExpressionConversion(context)
-            +AddParenthesisForLineBreaksInBinaryExpression()
-            +ThrowStatementConversion()
-            +ArrayInitializerConversion(context)
-            +TryStatementConversion(context)
-            +EnumFieldAccessConversion(context)
-            +StaticMemberAccessConversion(context)
-            +SynchronizedStatementConversion(context)
-            +JetbrainsNullableAnnotationsConverter(context)
-            +DefaultArgumentsConversion(context)
-            +ConstructorConversion(context)
-            +StaticInitDeclarationConversion()
-            +ImplicitInitializerConversion(context)
-            +ParameterModificationInMethodCallsConversion(context)
-            +BlockToRunConversion(context)
-            +PrimaryConstructorDetectConversion(context)
-            +InsertDefaultPrimaryConstructorConversion(context)
-            +FieldToPropertyConversion()
-            +JavaStandardMethodsConversion(context)
-            +JavaMethodToKotlinFunctionConversion(context)
-            +MainFunctionConversion(context)
-            +AssertStatementConversion(context)
-            +SwitchStatementConversion(context)
-            +LiteralConversion()
-            +ForConversion(context)
-            +LabeledStatementConversion()
-            +ArrayOperationsConversion(context)
-            +EqualsOperatorConversion(context)
-            +TypeMappingConversion(context)
-            +InternalDeclarationConversion(context)
+    private fun createConversions(context: NewJ2kConverterContext) = listOf(
+        NonCodeElementsConversion(),
+        JavaModifiersConversion(context),
+        JavaAnnotationsConversion(context),
+        AnnotationClassConversion(context),
+        AnnotationConversion(context),
+        ModalityConversion(context),
+        FunctionAsAnonymousObjectToLambdaConversion(),
+        ReturnStatementInLambdaExpressionConversion(),
+        BoxedTypeOperationsConversion(context),
+        AssignmentAsExpressionToAlsoConversion(context),
+        AssignmentStatementValCreationConversion(context),
+        AssignmentStatementOperatorConversion(),
+        AssignmentStatementSimplifyValConversion(),
+        AssignmentStatementSimplifyAlsoConversion(),
+        AssignmentStatementSplitAlsoConversion(),
+        PolyadicExpressionConversion(),
+        OperatorExpressionConversion(context),
+        AddParenthesisForLineBreaksInBinaryExpression(),
+        ThrowStatementConversion(),
+        ArrayInitializerConversion(context),
+        TryStatementConversion(context),
+        EnumFieldAccessConversion(context),
+        StaticMemberAccessConversion(context),
+        SynchronizedStatementConversion(context),
+        JetbrainsNullableAnnotationsConverter(context),
+        DefaultArgumentsConversion(context),
+        ConstructorConversion(context),
+        StaticInitDeclarationConversion(),
+        ImplicitInitializerConversion(context),
+        ParameterModificationInMethodCallsConversion(context),
+        BlockToRunConversion(context),
+        PrimaryConstructorDetectConversion(context),
+        InsertDefaultPrimaryConstructorConversion(context),
+        FieldToPropertyConversion(),
+        JavaStandardMethodsConversion(context),
+        JavaMethodToKotlinFunctionConversion(context),
+        MainFunctionConversion(context),
+        AssertStatementConversion(context),
+        SwitchStatementConversion(context),
+        LiteralConversion(),
+        ForConversion(context),
+        LabeledStatementConversion(),
+        ArrayOperationsConversion(context),
+        EqualsOperatorConversion(context),
+        TypeMappingConversion(context),
+        InternalDeclarationConversion(context),
 
-            //Kotlin --> Kotlin conversions
-            +InnerClassConversion()
-            +StaticsToCompanionExtractConversion()
-            +InterfaceWithFieldConversion()
-            +ClassToObjectPromotionConversion(context)
-            +RemoveWrongExtraModifiersForSingleFunctionsConversion()
-            +MethodReferenceToLambdaConversion(context)
-            +BuiltinMembersConversion(context)
-            +ImplicitCastsConversion(context)
-            +LiteralConversion()
-
-            +CollectImportsConversion(context)
-            +FilterImportsConversion()
-            +MoveInitBlocksToTheEndConversion()
-            +AddElementsInfoConversion(context)
-        }
+        InnerClassConversion(),
+        StaticsToCompanionExtractConversion(),
+        InterfaceWithFieldConversion(),
+        ClassToObjectPromotionConversion(context),
+        RemoveWrongExtraModifiersForSingleFunctionsConversion(),
+        MethodReferenceToLambdaConversion(context),
+        BuiltinMembersConversion(context),
+        ImplicitCastsConversion(context),
+        LiteralConversion(),
+        CollectImportsConversion(context),
+        FilterImportsConversion(),
+        MoveInitBlocksToTheEndConversion(),
+        AddElementsInfoConversion(context)
+    )
 
     fun doApply(trees: List<JKTreeRoot>, context: NewJ2kConverterContext) {
-        val conversion = createRootConversion(context)
-        conversion.runConversion(trees, context)
+        val conversions = createConversions(context)
+        for (conversion in conversions) {
+            conversion.runConversion(trees, context)
+        }
     }
-
 }
\ No newline at end of file
diff --git a/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/CompositeConversion.kt b/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/CompositeConversion.kt
deleted file mode 100644
index 72e8aa1b3f0..00000000000
--- a/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/CompositeConversion.kt
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * 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.nj2k.conversions
-
-import org.jetbrains.kotlin.nj2k.NewJ2kConverterContext
-import org.jetbrains.kotlin.nj2k.tree.JKTreeElement
-
-class BatchPipelineConversion(val conversions: List<BatchBaseConversion>) : BatchBaseConversion {
-    override fun runConversion(treeRoots: List<JKTreeElement>, context: NewJ2kConverterContext): Boolean {
-        return conversions.asSequence().map { it.runConversion(treeRoots, context) }.max() ?: false
-    }
-}
-
-class SequentialPipelineConversion(val conversions: List<SequentialBaseConversion>) : SequentialBaseConversion {
-    override fun runConversion(treeRoot: JKTreeElement, context: NewJ2kConverterContext): Boolean {
-        return conversions.asSequence().map { it.runConversion(treeRoot, context) }.max() ?: false
-    }
-}
-
-class BatchRepeatConversion(val conversion: BatchBaseConversion) : BatchBaseConversion {
-
-    override fun runConversion(treeRoots: List<JKTreeElement>, context: NewJ2kConverterContext): Boolean {
-        return true in generateSequence { conversion.runConversion(treeRoots, context) }.takeWhile { it }
-    }
-
-}
-
-class SequentialRepeatConversion(val conversion: SequentialBaseConversion) : SequentialBaseConversion {
-    override fun runConversion(treeRoot: JKTreeElement, context: NewJ2kConverterContext): Boolean {
-        return true in generateSequence { conversion.runConversion(treeRoot, context) }.takeWhile { it }
-    }
-
-}
-
-
-class PipelineConversionBuilder<T : BatchBaseConversion> {
-    val conversions = mutableListOf<T>()
-    operator fun T.unaryPlus() {
-        conversions += this
-    }
-}
-
-internal inline fun sequentialPipe(crossinline configure: PipelineConversionBuilder<SequentialBaseConversion>.() -> Unit): SequentialPipelineConversion {
-    return SequentialPipelineConversion(
-        PipelineConversionBuilder<SequentialBaseConversion>().apply(configure).conversions
-    )
-}
-
-internal inline fun batchPipe(crossinline configure: PipelineConversionBuilder<BatchBaseConversion>.() -> Unit): BatchPipelineConversion {
-    return BatchPipelineConversion(
-        PipelineConversionBuilder<BatchBaseConversion>().apply(configure).conversions
-    )
-}
-
-internal fun batchRepeat(batchBaseConversion: BatchBaseConversion): BatchRepeatConversion {
-    return BatchRepeatConversion(batchBaseConversion)
-}
-
-internal fun sequentialRepeat(sequentialBaseConversion: SequentialBaseConversion): SequentialRepeatConversion {
-    return SequentialRepeatConversion(sequentialBaseConversion)
-}