diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/JavaToJKTreeBuilder.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/JavaToJKTreeBuilder.kt
index 8e3448157af..497e7af6848 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/JavaToJKTreeBuilder.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/JavaToJKTreeBuilder.kt
@@ -173,14 +173,15 @@ class JavaToJKTreeBuilder(
 
         fun PsiLambdaExpression.toJK(): JKExpression {
             return JKLambdaExpressionImpl(
-                with(declarationMapper) { parameterList.parameters.map { it.toJK() } },
                 body.let {
                     when (it) {
                         is PsiExpression -> JKExpressionStatementImpl(it.toJK())
                         is PsiCodeBlock -> JKBlockStatementImpl(with(declarationMapper) { it.toJK() })
                         else -> JKBlockStatementImpl(JKBodyStub)
                     }
-                })
+                },
+                with(declarationMapper) { parameterList.parameters.map { it.toJK() } }
+            )
         }
 
         private fun JKExpression.qualified(qualifier: JKExpression?) =
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/ArrayInitializerConversion.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/ArrayInitializerConversion.kt
index 1bc832a0d82..5ca8e5b0072 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/ArrayInitializerConversion.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/ArrayInitializerConversion.kt
@@ -59,7 +59,8 @@ class ArrayInitializerConversion(private val context: ConversionContext) : Recur
                 JKExpressionListImpl(
                     dimensions[0],
                     JKLambdaExpressionImpl(
-                        statement = JKExpressionStatementImpl(buildArrayInitializer(dimensions.subList(1, dimensions.size), type))
+                        JKExpressionStatementImpl(buildArrayInitializer(dimensions.subList(1, dimensions.size), type)),
+                        emptyList()
                     )
                 )
             )
@@ -67,7 +68,7 @@ class ArrayInitializerConversion(private val context: ConversionContext) : Recur
         var resultType = JKClassTypeImpl(
             context.symbolProvider.provideByFqName(arrayFqName(type)),
             if (type is JKJavaPrimitiveType) emptyList() else listOf(type),
-            Nullability.NotNull
+            Nullability.Default
         )
         for (i in 0 until dimensions.size - 2) {
             resultType = JKClassTypeImpl(
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/AssertStatementConversion.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/AssertStatementConversion.kt
index bc7ef166f63..6ce96892ca0 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/AssertStatementConversion.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/AssertStatementConversion.kt
@@ -19,8 +19,8 @@ class AssertStatementConversion(private val context: ConversionContext) : Recurs
         val messageExpression =
             if (element.description is JKStubExpression) null
             else JKLambdaExpressionImpl(
-                emptyList(),
-                JKExpressionStatementImpl(element::description.detached())
+                JKExpressionStatementImpl(element::description.detached()),
+                emptyList()
             )
         return recurse(
             JKExpressionStatementImpl(
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/AssignmentAsExpressionToAlsoConversion.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/AssignmentAsExpressionToAlsoConversion.kt
index 9fde107f0ad..9e95b383a05 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/AssignmentAsExpressionToAlsoConversion.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/AssignmentAsExpressionToAlsoConversion.kt
@@ -21,7 +21,11 @@ class AssignmentAsExpressionToAlsoConversion(val context: ConversionContext) : R
             ), context.symbolProvider.provideByFqName("kotlin/also")
         ).also {
             it.statement.cast<JKBlockStatement>().block.statements.first().cast<JKKtAssignmentStatement>().expression =
-                    JKFieldAccessExpressionImpl(context.symbolProvider.provideUniverseSymbol(it.parameter))
+                    JKFieldAccessExpressionImpl(
+                        context.symbolProvider.provideUniverseSymbol(
+                            JKParameterImpl(JKTypeElementImpl(JKContextType), JKNameIdentifierImpl("it"))
+                        )
+                    )//TODO introduce symbol
         }
 
         return recurse(
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/BlockToRunConversion.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/BlockToRunConversion.kt
index e6cecfb24ef..a83383d4da5 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/BlockToRunConversion.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/conversions/BlockToRunConversion.kt
@@ -33,8 +33,8 @@ class BlockToRunConversion(private val context: ConversionContext) : RecursiveAp
 
         element.invalidate()
         val lambda = JKLambdaExpressionImpl(
-            emptyList(),
-            JKBlockStatementImpl(element.block)
+            JKBlockStatementImpl(element.block),
+            emptyList()
         )
         val call = JKKtCallExpressionImpl(runSymbol as JKMethodSymbol, JKExpressionListImpl(listOf(lambda)))
         return recurse(call)
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/expressions.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/expressions.kt
index 1d89a45fadf..7747255db02 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/expressions.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/expressions.kt
@@ -208,8 +208,8 @@ fun useExpression(
         JKParameterImpl(JKTypeElementImpl(JKNoTypeImpl), variableIdentifier)
 
     val lambda = JKLambdaExpressionImpl(
-        listOf(lambdaParameter),
-        body
+        body,
+        listOf(lambdaParameter)
     )
     val methodCall =
         JKJavaMethodCallExpressionImpl(
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/impl/jk.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/impl/jk.kt
index 3d719c7c971..270fdc72619 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/impl/jk.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/impl/jk.kt
@@ -358,9 +358,9 @@ class JKClassAccessExpressionImpl(override var identifier: JKClassSymbol) : JKCl
 }
 
 class JKLambdaExpressionImpl(
-    parameters: List<JKParameter> = listOf(
-        JKParameterImpl(JKTypeElementImpl(JKJavaVoidType), JKNameIdentifierImpl("it"))
-    ), statement: JKStatement, returnType: JKTypeElement = JKTypeElementImpl(JKContextType)
+    statement: JKStatement,
+    parameters: List<JKParameter>,
+    returnType: JKTypeElement = JKTypeElementImpl(JKContextType)//TODO use function type
 ) : JKLambdaExpression, JKBranchElementBase(), PsiOwner by PsiOwnerImpl() {
     override var statement by child(statement)
     override val returnType by child(returnType)
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/impl/k.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/impl/k.kt
index 4e68a9ceb10..7b7aed58e16 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/impl/k.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/impl/k.kt
@@ -118,7 +118,6 @@ class JKKtOperatorImpl(override val token: JKKtOperatorToken, val methodSymbol:
 class JKKtAlsoCallExpressionImpl(
     statement: JKStatement,
     override val identifier: JKMethodSymbol,
-    override val parameterName: String = "it",
     typeArgumentList: JKTypeArgumentList = JKTypeArgumentListImpl()
 ) : JKKtAlsoCallExpression, JKBranchElementBase() {
     override fun <R, D> accept(visitor: JKVisitor<R, D>, data: D): R = visitor.visitKtAlsoCallExpression(this, data)
@@ -127,19 +126,10 @@ class JKKtAlsoCallExpressionImpl(
         set(it) {
             arguments.expressions.first().cast<JKLambdaExpressionImpl>().statement = it
         }
-    val parameter
-        get() = arguments.expressions.first().cast<JKLambdaExpression>().parameters.first()
     override var arguments: JKExpressionList by child(
         JKExpressionListImpl(
             listOf(
-                JKLambdaExpressionImpl(
-                    listOf(
-                        JKParameterImpl(
-                            JKTypeElementImpl(JKJavaVoidType),
-                            JKNameIdentifierImpl(parameterName)
-                        )
-                    ), statement
-                )
+                JKLambdaExpressionImpl(statement, emptyList())
             )
         )
     )
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/k.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/k.kt
index 0beaa594593..9c8f02d5f17 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/k.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/k.kt
@@ -58,7 +58,6 @@ interface JKKtMethodCallExpression : JKMethodCallExpression
 
 interface JKKtAlsoCallExpression : JKKtMethodCallExpression {
     var statement: JKStatement
-    val parameterName: String
 }
 
 interface JKKtLiteralExpression : JKLiteralExpression