diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/ConversionsRunner.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/ConversionsRunner.kt
index cfeb86686a1..b1652211485 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/ConversionsRunner.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/ConversionsRunner.kt
@@ -41,27 +41,30 @@ object ConversionsRunner {
             +ConstructorConversion(context)
             +ImplicitInitializerConversion(context)
             +ParameterModificationInMethodCallsConversion(context)
-            +PrimitiveTypesInitializersConversion(context)
             +DefaultArgumentsConversion(context)
             +PrintlnConversion(context)
             +BlockToRunConversion(context)
-            +LowerNullabilityInFunctionParametersConversion(context)
+            +JetbrainsNullableAnnotationsConverter(context)
             +PrimaryConstructorDetectConversion(context)
             +InsertDefaultPrimaryConstructorConversion(context)
             +FieldToPropertyConversion()
             +JavaStandartMethodsConversion(context)
             +JavaMethodToKotlinFunctionConversion(context)
             +MainFunctionConversion(context)
-            +LiteralConversion()
             +AssertStatementConversion(context)
-            +PolyadicExpressionConversion()
+            +PolyadicExpressionConversion(context)
             +SwitchStatementConversion(context)
-            +InstanceOfConversion()
+            +LiteralConversion()
             +ForConversion(context)
             +ForInConversion()
             +CollectionOperationsConversion(context)
             +ArrayOperationsConversion(context)
             +TypeMappingConversion(context)
+            +ImplicitCastsConversion(context)
+            +LowerNullabilityInFunctionParametersConversion(context)
+            +FixNullabilityBySuperFunctionConversion(context)
+            +DefaultNullabilityToNullableConversion()
+            +NullableQualifierConversion(context)
             +StringMethodsConversion(context)
 
             //Kotlin --> Kotlin conversions
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/NewCodeBuilder.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/NewCodeBuilder.kt
index 6c59af9ca56..eeb62608b24 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/NewCodeBuilder.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/NewCodeBuilder.kt
@@ -17,7 +17,6 @@
 package org.jetbrains.kotlin.j2k
 
 import org.jetbrains.kotlin.j2k.NewCodeBuilder.ParenthesisKind.*
-import org.jetbrains.kotlin.j2k.ast.Mutability
 import org.jetbrains.kotlin.j2k.ast.Nullability
 import org.jetbrains.kotlin.j2k.conversions.parentOfType
 import org.jetbrains.kotlin.j2k.tree.*
@@ -345,14 +344,6 @@ class NewCodeBuilder {
             }
         }
 
-        override fun visitKtOperatorExpression(ktOperatorExpression: JKKtOperatorExpression) {
-            ktOperatorExpression.receiver.accept(this)
-            printer.printWithNoIndent(" ")
-            printer.printWithNoIndent(ktOperatorExpression.identifier.name)
-            printer.printWithNoIndent(" ")
-            ktOperatorExpression.argument.accept(this)
-        }
-
         override fun visitIfElseExpression(ifElseExpression: JKIfElseExpression) {
             printer.printWithNoIndent("if (")
             ifElseExpression.condition.accept(this)
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/expressions.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/expressions.kt
index 46dbb249e65..1d89a45fadf 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/expressions.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/expressions.kt
@@ -14,6 +14,7 @@ import org.jetbrains.kotlin.j2k.conversions.multiResolveFqName
 import org.jetbrains.kotlin.j2k.conversions.resolveFqName
 import org.jetbrains.kotlin.j2k.tree.*
 import org.jetbrains.kotlin.j2k.tree.impl.*
+import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.psi.KtNamedFunction
 import java.math.BigInteger
@@ -150,7 +151,7 @@ fun untilToExpression(
     to: JKExpression,
     conversionContext: ConversionContext,
     psiContext: PsiElement
-): JKKtOperatorExpression =
+): JKExpression =
     rangeExpression(
         from,
         to,
@@ -164,7 +165,7 @@ fun downToExpression(
     to: JKExpression,
     conversionContext: ConversionContext,
     psiContext: PsiElement
-): JKKtOperatorExpression =
+): JKExpression =
     rangeExpression(
         from,
         to,
@@ -179,11 +180,11 @@ fun rangeExpression(
     operatorName: String,
     conversionContext: ConversionContext,
     psiContext: PsiElement
-): JKKtOperatorExpressionImpl {
+): JKExpression {
     val symbol = conversionContext.symbolProvider.provideDirectSymbol(
         multiResolveFqName(ClassId.fromString("kotlin/ranges/$operatorName"), psiContext).first()
     ) as JKMethodSymbol
-    return JKKtOperatorExpressionImpl(from, symbol, to)
+    return JKBinaryExpressionImpl(from, to, JKKtOperatorImpl(JKKtWordOperatorToken(operatorName), symbol))
 }
 
 fun blockStatement(vararg statements: JKStatement) =
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 73c31c52a97..63628c63a59 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/impl/k.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/impl/k.kt
@@ -241,15 +241,6 @@ class JKKtInitDeclarationImpl(block: JKBlock) : JKKtInitDeclaration, JKBranchEle
     override fun <R, D> accept(visitor: JKVisitor<R, D>, data: D): R = visitor.visitKtInitDeclaration(this, data)
 }
 
-class JKKtOperatorExpressionImpl(
-    receiver: JKExpression,
-    override var identifier: JKMethodSymbol,
-    argument: JKExpression
-) : JKKtOperatorExpression, JKBranchElementBase() {
-    override var receiver: JKExpression by child(receiver)
-    override var argument: JKExpression by child(argument)
-    override fun <R, D> accept(visitor: JKVisitor<R, D>, data: D): R = visitor.visitKtOperatorExpression(this, data)
-}
 
 class JKKtConvertedFromForLoopSyntheticWhileStatementImpl(
     variableDeclaration: JKStatement,
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/k.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/k.kt
index 901a389bf3f..0beaa594593 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/k.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/k.kt
@@ -90,11 +90,6 @@ interface JKKtInitDeclaration : JKDeclaration {
     var block: JKBlock
 }
 
-interface JKKtOperatorExpression : JKExpression {
-    var receiver: JKExpression
-    var identifier: JKMethodSymbol
-    var argument: JKExpression
-}
 
 interface JKKtConvertedFromForLoopSyntheticWhileStatement : JKStatement {
     var variableDeclaration: JKStatement
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/visitors/JKVisitor.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/visitors/JKVisitor.kt
index 57253395dd7..c43b14a51de 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/visitors/JKVisitor.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/visitors/JKVisitor.kt
@@ -118,7 +118,6 @@ interface JKVisitor<out R, in D> {
     fun visitKtValueWhenLabel(ktValueWhenLabel: JKKtValueWhenLabel, data: D): R = visitKtWhenLabel(ktValueWhenLabel, data)
     fun visitKtIsExpression(ktIsExpression: JKKtIsExpression, data: D): R = visitExpression(ktIsExpression, data)
     fun visitKtInitDeclaration(ktInitDeclaration: JKKtInitDeclaration, data: D): R = visitDeclaration(ktInitDeclaration, data)
-    fun visitKtOperatorExpression(ktOperatorExpression: JKKtOperatorExpression, data: D): R = visitExpression(ktOperatorExpression, data)
     fun visitKtConvertedFromForLoopSyntheticWhileStatement(ktConvertedFromForLoopSyntheticWhileStatement: JKKtConvertedFromForLoopSyntheticWhileStatement, data: D): R = visitStatement(ktConvertedFromForLoopSyntheticWhileStatement, data)
     fun visitKtThrowExpression(ktThrowExpression: JKKtThrowExpression, data: D): R = visitExpression(ktThrowExpression, data)
     fun visitKtTryExpression(ktTryExpression: JKKtTryExpression, data: D): R = visitExpression(ktTryExpression, data)
diff --git a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/visitors/JKVisitorVoid.kt b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/visitors/JKVisitorVoid.kt
index 17b010cdedd..25605be5153 100644
--- a/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/visitors/JKVisitorVoid.kt
+++ b/j2k/newSrc/org/jetbrains/kotlin/j2k/tree/visitors/JKVisitorVoid.kt
@@ -233,8 +233,6 @@ interface JKVisitorVoid : JKVisitor<Unit, Nothing?> {
     override fun visitKtIsExpression(ktIsExpression: JKKtIsExpression, data: Nothing?) = visitKtIsExpression(ktIsExpression)
     fun visitKtInitDeclaration(ktInitDeclaration: JKKtInitDeclaration) = visitDeclaration(ktInitDeclaration, null)
     override fun visitKtInitDeclaration(ktInitDeclaration: JKKtInitDeclaration, data: Nothing?) = visitKtInitDeclaration(ktInitDeclaration)
-    fun visitKtOperatorExpression(ktOperatorExpression: JKKtOperatorExpression) = visitExpression(ktOperatorExpression, null)
-    override fun visitKtOperatorExpression(ktOperatorExpression: JKKtOperatorExpression, data: Nothing?) = visitKtOperatorExpression(ktOperatorExpression)
     fun visitKtConvertedFromForLoopSyntheticWhileStatement(ktConvertedFromForLoopSyntheticWhileStatement: JKKtConvertedFromForLoopSyntheticWhileStatement) = visitStatement(ktConvertedFromForLoopSyntheticWhileStatement, null)
     override fun visitKtConvertedFromForLoopSyntheticWhileStatement(ktConvertedFromForLoopSyntheticWhileStatement: JKKtConvertedFromForLoopSyntheticWhileStatement, data: Nothing?) = visitKtConvertedFromForLoopSyntheticWhileStatement(ktConvertedFromForLoopSyntheticWhileStatement)
     fun visitKtThrowExpression(ktThrowExpression: JKKtThrowExpression) = visitExpression(ktThrowExpression, null)