diff --git a/nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/nullabilityAnalysis/nullabilityAnalysis.kt b/nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/nullabilityAnalysis/nullabilityAnalysis.kt
index 9171701fa16..142b5ee7800 100644
--- a/nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/nullabilityAnalysis/nullabilityAnalysis.kt
+++ b/nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/nullabilityAnalysis/nullabilityAnalysis.kt
@@ -11,9 +11,10 @@ import com.intellij.psi.PsiClass
 import com.intellij.psi.PsiComment
 import com.intellij.psi.PsiElement
 import com.intellij.psi.PsiElementVisitor
-import com.intellij.psi.util.parentOfType
+import com.intellij.psi.util.PsiTreeUtil
 import org.jetbrains.kotlin.nj2k.NewJ2kConverterContext
 import org.jetbrains.kotlin.nj2k.asLabel
+import org.jetbrains.kotlin.nj2k.parentOfType
 import org.jetbrains.kotlin.nj2k.postProcessing.resolve
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.psiUtil.collectDescendantsOfType
diff --git a/nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/postProcessing/ConvertGettersAndSetters.kt b/nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/postProcessing/ConvertGettersAndSetters.kt
index 31dbdc93d8b..775ad0a0aff 100644
--- a/nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/postProcessing/ConvertGettersAndSetters.kt
+++ b/nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/postProcessing/ConvertGettersAndSetters.kt
@@ -8,7 +8,6 @@ package org.jetbrains.kotlin.nj2k.postProcessing
 import com.intellij.psi.PsiElement
 import com.intellij.psi.search.LocalSearchScope
 import com.intellij.psi.search.searches.ReferencesSearch
-import com.intellij.psi.util.parentOfType
 import org.jetbrains.kotlin.descriptors.ClassDescriptor
 import org.jetbrains.kotlin.descriptors.MemberDescriptor
 import org.jetbrains.kotlin.descriptors.PropertyDescriptor
@@ -23,6 +22,7 @@ import org.jetbrains.kotlin.lexer.KtModifierKeywordToken
 import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.load.java.JvmAbi
 import org.jetbrains.kotlin.nj2k.NewJ2kPostProcessing
+import org.jetbrains.kotlin.nj2k.parentOfType
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.addRemoveModifier.setModifierList
 import org.jetbrains.kotlin.psi.psiUtil.*
diff --git a/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/StaticMemberAccessConversion.kt b/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/StaticMemberAccessConversion.kt
index ecdb4539873..2eafba54a1f 100644
--- a/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/StaticMemberAccessConversion.kt
+++ b/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/StaticMemberAccessConversion.kt
@@ -8,11 +8,11 @@ package org.jetbrains.kotlin.nj2k.conversions
 import com.intellij.lang.jvm.JvmModifier
 import com.intellij.psi.PsiElement
 import com.intellij.psi.PsiModifierListOwner
-import com.intellij.psi.util.parentOfType
 import org.jetbrains.kotlin.j2k.getContainingClass
 import org.jetbrains.kotlin.nj2k.NewJ2kConverterContext
 import org.jetbrains.kotlin.nj2k.asQualifierWithThisAsSelector
 import org.jetbrains.kotlin.nj2k.copyTreeAndDetach
+import org.jetbrains.kotlin.nj2k.parentOfType
 import org.jetbrains.kotlin.nj2k.tree.*
 import org.jetbrains.kotlin.nj2k.tree.impl.*
 import org.jetbrains.kotlin.psi.KtClassOrObject
diff --git a/nj2k/src/org/jetbrains/kotlin/nj2k/tree/impl/symbols.kt b/nj2k/src/org/jetbrains/kotlin/nj2k/tree/impl/symbols.kt
index 08f14ada51e..e550542da12 100644
--- a/nj2k/src/org/jetbrains/kotlin/nj2k/tree/impl/symbols.kt
+++ b/nj2k/src/org/jetbrains/kotlin/nj2k/tree/impl/symbols.kt
@@ -7,13 +7,13 @@ package org.jetbrains.kotlin.nj2k.tree.impl
 
 import com.intellij.psi.*
 import com.intellij.psi.impl.source.tree.java.PsiReferenceExpressionImpl
-import com.intellij.psi.util.parentOfType
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
 import org.jetbrains.kotlin.idea.refactoring.fqName.getKotlinFqName
 import org.jetbrains.kotlin.idea.search.declarationsSearch.findDeepestSuperMethodsNoWrapping
 import org.jetbrains.kotlin.j2k.ast.Nullability
 import org.jetbrains.kotlin.nj2k.JKSymbolProvider
 import org.jetbrains.kotlin.nj2k.conversions.parentOfType
+import org.jetbrains.kotlin.nj2k.parentOfType
 import org.jetbrains.kotlin.nj2k.tree.*
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.psiUtil.containingClass
diff --git a/nj2k/src/org/jetbrains/kotlin/nj2k/utils.kt b/nj2k/src/org/jetbrains/kotlin/nj2k/utils.kt
index df0abba80fc..c0c0f37920d 100644
--- a/nj2k/src/org/jetbrains/kotlin/nj2k/utils.kt
+++ b/nj2k/src/org/jetbrains/kotlin/nj2k/utils.kt
@@ -5,9 +5,19 @@
 
 package org.jetbrains.kotlin.nj2k
 
+import com.intellij.psi.PsiElement
+import com.intellij.psi.util.PsiTreeUtil
+import com.intellij.psi.util.parentsOfType
+
 fun <T> List<T>.replace(element: T, replacer: T): List<T> {
     val mutableList = toMutableList()
     val index = indexOf(element)
     mutableList[index] = replacer
     return mutableList
-}
\ No newline at end of file
+}
+
+inline fun <reified T : PsiElement> PsiElement.parentOfType(): T? =
+    PsiTreeUtil.getParentOfType(this, T::class.java)
+
+inline fun <reified T : PsiElement> PsiElement.parentsOfType(): Sequence<T> = parentsOfType(T::class.java)
+